31 comments/ 313230 views/ 241 favorites An Uncomfortable Situation By: wordsinthedust It's nothing new that college students will go to great extremes to pay for college tuition. My sister Allison and I are no exception. It was challenging enough on our folks financially that we were twins. Growing up, it was always twice the expense for almost everything. An older brother and a younger sister just added to the stretch put on the dollar at our house. Alison, my twin sister and I, were born about five minutes apart. She's never let me forget that she's the oldest. It's all fun and games until I call her an old lady, and then, depending on her mood, she gets real pissy. We both did pretty well in school and managed to swing partial scholarships to college when we graduated. Suddenly, we were almost four hours from family, alone, but together. Our freshman year was tough. We stayed in the dorms, and although we made a lot of new friends, it was tough, especially when big weekends would come around and we were working odd jobs of one sort or another to pay bills. Did I mention Ali's a hottie? She doesn't like to hear me say it; she thinks I'm mocking her. But it's true. She's beautiful, in a natural sort of way. And when she decides to get herself all made up, like when she's going on a date? Wow. More than once I've really wished it was me taking her out. The only problem was the money thing. Because we weren't money privileged, a lot of the people we would have liked to call friends looked down their noses at us. Ali endured a long string of guys who seemed to want just one thing. I only went out on three dates the entire year; it seemed I didn't have enough to lure the material girls. As our freshman year came to close, we both managed to land jobs for the summer. The only problem was housing. We couldn't afford the dorm for the summer, and we couldn't find roommates. Finally, in a last ditch effort, a t out parents' urging, we rented an apartment together. We each had our own room, but other than that, it was definitely no frills. Most people hadn't made the connection between us, and we overheard at least one person remark that the two of us had started dating and were moving in together. Home sickness had been a scourge that entire first year away from the nest. The first week we were alone in the apartment was brutal. Almost all of the people we knew were gone for the summer, or at least until the summer session started. It finally became too much one night. I thought I heard something coming from the apartment next door. After all, the walls were pretty thin. I got out of bed and made my way out into the hall. The noise grew louder as I came closer to Ali's room. She lay in her bed, facing the wall, hugging her pillow to her body and sobbing. "Ali? Ali, what's wrong?" She sniffed hard, wiping at tears she didn't want seen. "Nothing," she said. "I'm fine." I walked into her room. "I can hear you crying, Sis. What is it?" Alison rolled over to look at me. "It doesn't bother you at all, does it?" she asked. "Being this far from home and everybody?" "I'm not that far from everybody," I said. "I've got you." It was the wrong thing to say; it was the right thing to say. The tears started again, but Ali reached for me, her hand grabbing mine. I began to think I was never going to get my hand back; I thought she was going to keep it. We talked for almost an hour, me sitting on the edge of her bed wearing nothing but boxers, her laying there, bed sheet pulled up to her waist wearing only a thin night gown. She kissed my hand. "I love you, Tommy," she said. "I love you, too," I said. "Even if you are a whiny old woman." Her mood was light and playful. She swung her pillow at me. I went back to bed. I'd just gotten comfortable, sleep coming swiftly when I felt her beside my bed. "Move over," she said as I looked up at her. Easier said than done; twin beds aren't noted for their bounty of space. Ali slid in the bed beside me. She grabbed the covers and pulled them so that she had enough to cover her. I felt her lay down behind me, tangling her feet with mine, her naked legs brushing mine. Her nightgown wasn't just thin, it was short, too. Her arm slid under mine, looping around my body as her head nestled next to mine. I felt her lips on my shoulder. "Goodnight, little brother," she said. The two of us in bed together wasn't a new concept. In fact, it was a fight we'd waged against our parents for years. From the time either of us was able to crawl out of our toddler bed into the other's toddler bed, we'd been forever crawling in to sleep with each other, the warmth and comfort of our twin sibling. It was a hard habit to break, and one that continued off and on well into adolescence. And then it became awkward for a host of reasons. But tonight, it just felt right. We were alone. We were together. It never registered that I felt her breasts pressing against me, only a thin layer of cloth separating us. Ali lucked out right before the summer session, landing a veritable cash cow of a job. A couple of local artists were constantly in search of models for their artwork. If they found a subject they liked, it was not unheard of for the student to find a full year 's employment as the focus of the artist's pencil. Ali answered one of the ads before the spring semester ended, and after two meetings, she was promised work for at least the summer session, the fall semester, and maybe longer if she wanted it. My sister was suddenly like a new woman. The modeling would have been her third job, but she cut back so that it was only her second. She began carrying herself differently, and I was really happy for her. Two weeks after she started posing, I came home and found her jumpy and irritable. It took me most of the night, but I finally got her to tell me what was bothering her. "She wants me to pose naked," Ali said. "With my clothes off." "I think they call it 'nude,'" I said. "'Naked, 'nude,'" she said. "She wants me to pose without any clothes on!" "What's the big deal?" I asked. "Models pose nude for artists all the time." Ali stared at me in stunned silence. "How can you be so insensitive?" she asked. "I'm not being insensitive," I said. "When you answered the ad, she told you there would be some nude modeling." "I know," she said, folding her arms across her chest and sitting back hard. "I just didn't think about it," she said, "and next week, she wants me to start out partially undressed, then she wants me to strip down to my underwear, and depending on how time runs, she wants me to take off my bra and panties." I took a sip of my soda. "Well," I said, "there aren't any guys there watching." "No," she said, "but part of me thinks I'd prefer being naked in front of a man instead of a woman." "That's just silly," I said. "Really?" she asked. "So you wouldn't have a problem being naked in front of a man as opposed to in front of a woman?" "That's different," I said. "Different because it's me and not you," she said. "Look, Sis," I said. "Think of it as though you're going to the doctor." "The doctor at least gives you that ridiculous gown to put on," she said. She at least had a few days to warm up to the idea. The only problem with the time she had to warm up to the idea is that it was time she had to warm up to the idea. I came home from my job three nights later hot and sweaty from work. I did a double take as I shut the front door. Ali sat on the couch wearing nothing but panties and a tank top. "What?" she asked, noting that I'd stopped to stare. "Nothing," I said. "But when did you start sitting around in your underwear?" "I'm getting used to being undressed," she said. She stood up off the couch and walked toward the kitchen. Her nipples were hard buds of flesh clearly outlined against the fabric of the tank top. "I'm going to go take a shower," I said. "Okay." I turned to go to my room, but not before I watched Ali pull open the freezer, clenching her butt cheeks together as she stood on her tiptoes to peer into the back of the freezer. I crawled into the shower ignoring two really strong urges; the first was to take a cold shower, due to the fact that, second, my cock was hard, excited by my sister's scantily clad state. It had been a long day, and when I came out of the shower, I donned my boxers and went straight to my room, my cock still annoyingly erect inside my boxers. I crawled into bed and pulled my pillow into my lap as I flipped open one of my school books to do some reading. A few minutes later, I caught Ali walking down the hall toward my room, still scantily clad. "Did you read this section yet?" she asked, flopping down on my bed. My hand scrambled to grab the pillow as she pushed at it in an effort to make room for her to sit down. No luck. The pillow slid out of the way, revealing the tent in my boxers. "Oh! Wow! I, uh..." Her close proximity wasn't helping any; my cock swelled, making the tent bigger as she brushed against me. We made eye contact. Both of us blushed. "Sis, I'm sorry," I said. "Don't apologize," she said. "I think it's sweet." Alison leaned forward and kissed me on the cheek. "I like it that I'm pretty enough to make you hard," she said. She sat back, a sudden troubled expression on her face. "That is... why you're hard," she said, "isn't it?" "Y-yeah," I said. I know you're not supposed to have the hots for your sister, but we were closer than we'd ever been and it was undeniable she was gorgeous. The fact the she was my best friend and beautiful were conspiring with her lack of clothing and proximity to arouse me. It wasn't cold in the apartment, so I guessed, or hoped, her nipples were an indicator she was aroused, too. Alison looked down at my crotch again, licked her lips and stood up. "I'm gonna... it's been a long day," she said. "I'm gonna go to bed." She bent over and kissed me on the cheek again. She paused bent over for a moment too long. On purpose? I caught a good glimpse of her breasts swaying from her chest. I watched as she turned and walked out of my bedroom. "G'night, Sis," I said. I tried to get back to my reading, but to no avail. To make matters worse, Alison left the light on in the living room when she went to bed. I asked her if she needed me to get it, and she said she'd appreciate it. I crawled out of bed and took a deep breath. My cock was still obviously hard as I walked out of my bedroom. I glanced into Ali's room as I walked past. She was at the edge of her bed, one knee on the bed, one foot on the floor, naked save for the night gown she was pulling down over her body, her breasts just covered. I turned out the light and headed back to bed. I glanced in at Ali as I passed her room again. Her night gown covered her body and she sat on the edge of her bed. She smiled at me as I paused in her doorway. I crawled back into bed, my erection throbbing. The next week, Ali came home from her first day of modeling nude walking on a cloud. "It was great," she said, sliding into my lap and hugging me. "I thought you were really upset about it," I said. Ali sighed and laid her hear back against the chair. "That was before I knew how exhilarating it could be," she said. "When we stopped, she showed me some of her sketches, and... wow..." My sister took a deep breath and sighed again. "Did you say sketches?" I asked. "Yeah," Ali said, nodding. "Lisa does sketches, lots of sketches with pencils and charcoal. Some of the sketches she uses as a reference for her paintings." "I'd like to see some," I said. Ali's jaw dropped. "You want to see me naked?!" "I didn't say I want to see the sketches of you!" I said. "So you don't want to see me naked?" Ali asked. I couldn't win. Ali laughed, satisfied that she had frustrated me. "You're silly," she said, kissing me as she hopped off my lap. I watched her skip down the hall to her room, peeling her t-shirt overhead before she entered her room. A moment later, Ali walked out of her bedroom and headed for the bathroom wearing only her bra and panties. She turned on the bath and closed the door behind her. As the first summer session drew to a close, I stayed up really late studying for my exams. One of the classes I was taking was on the verge of eating my lunch, and I was determined to pass it. Alison had been in bed for more than an hour when I felt her walk up behind me. Her arms wrapped around my neck as she bent over and hugged me. "How much later are you gonna be up?" she asked. "Not much longer," I said. "How come you're not studying?" "Hmmm." Ali laughed softly as she slid into the chair beside me. Tonight she was wearing pajamas. "I was able to study while I was posing," she said. I looked at her. "You're kidding," I said. "Nope. I was butt naked lying prone resting on my elbows. Perfect for studying." "It's not fair," I said. I sat back, rubbing at my eyes. "You interested in making some easy money?" she asked. "What did you have in mind?" I asked. "Lisa wants to do some couples sketches," she said. "You know, simple stuff. Me lying down with my head in your lap; the two of us holding hands; nothing elaborate." "You already told her I'd do it?" I asked. "No," she said. "But if you don't do it with me, she's going to bring in someone else and I'll be holding hands with a complete stranger for hours." "You wouldn't be strangers after all that time," I said. "Funny," she said. "Think about it. Let me know tomorrow." She kissed me on the cheek and went back to bed. It wasn't that much to think about, really. One of my part time jobs was so slow right now I might as well not be working there, and the extra money could come in handy. I decided to call it a night, killed the lights and went to bed. The next morning, I told Ali I'd pose with her. I found out that afternoon that Alison had put off asking me to pose with her for nearly a week. Lisa actually needed us to pose for her starting that evening. I rushed through the shower and got dressed as Ali fidgeted and fretted. I hadn't met Lisa before, and I immediately realized my choice to pose with my sister was the right one. Lisa was warm, personable and very easy to feel at ease around. She and Ali had a little fun at my expense as they had me sit in a couple of positions while Lisa drew quick profile sketches of me. Then, it was time for the two of us to pose together. It started out simple, warm; some would say sweet. Ali and I stood there, holding hands. It seemed like forever. Then, we stood embracing. All to soon, it was time to call it a night. Because the summer session was over, Lisa had arranged to make the most of the next few days and she told us she'd see us the following morning. Walking from the parking lot to our apartment, Ali grabbed my hand, her fingers linking in with mine. We realized we had long days ahead of us, and so we quickly called it a night. I had just turned out the light in my room when I saw her silhouette walk in. "I want to sleep with you," she said. She sat on the edge of the bed, rolling her feet up onto my bed. Neither of us even gave it a thought that I wore only my boxers and she was clad only in a thin gown. She pulled my arm around her, bringing my hand up to her chest. There was something about the warmth and the innocent intimacy of being that close to my sister for that length of time that made it easy to go to sleep that night. And then I felt her pull my hand to her breast. We got up the next morning and got ready to go. Once we were at Lisa's studio, we picked up almost right where we left off. Lisa had me sit down, and as Ali had predicted, Lisa had her lay down with her head in my lap. One minor pose alteration and we were done with the morning. A series of increasingly comfortable, intimate poses rounded out the day. As we were breaking for the day, Lisa stopped us before we got to the door. "I'm sure Ali told you she's done some nude posing," she said. I nodded, looking at Ali, who blushed. "Great," she said. "What I want to do, starting tomorrow, is some more relaxed, revealing poses." Ali and I exchanged glances, trying to hide the alarm in our eyes. "We'll start with you taking your shirt off and her blouse unbuttoned," Lisa said, "the two of you hugging. We can progress to the two of you in your underwear or swimsuits, and eventually, I want to do a series of sketches of the two of you nude together." "Nude?" I asked. "Together?" Ali asked. "Yes," Lisa said, looking at me, then at Ali. "It's not the sort of thing I usually have couples do. But the two of you have a lot of chemistry, and I'd like to take advantage of it. There'll be extra money in it." "How much extra money?" I asked. Lisa told us, and Ali and I both raised our eyebrows. "We'll think about it," I said, "and let you know in the morning." Ali grabbed my hand before we made it to the stairs. "What are we gonna do?" she asked. "What are we gonna do?" I repeated her question. "She thinks we're a couple. You told her we were a couple?" "No," Ali replied, shaking her head vigorously. "She told me she wanted me to do some posing for some couples sketches, and said if I had someone in mind, it would cut out the awkwardness of doing it with someone I didn't know. I never told her we were a couple." It was a dilemma. "What do you want to do?" I asked. "It's a lot of money," she said. "We can't afford not to do it." "Rent wouldn't be an issue for a while," I said. "No," she said. "It wouldn't be that bad, would it?" Dinner was pretty quiet that night, not much conversation. Ali and I picked out the clothes we were going to wear the next day, and then we got ready for bed. Like the night before, Ali crawled into bed with me. This time, she pulled my hand to her breast almost immediately as she snuggled against me beneath the covers. We got to Lisa's studio the next morning and could sense an immediate difference in the atmosphere. The lighting wasn't different, but the music was. It was softer, more relaxed. Lisa, herself, was dressed a little different, too. Her normal t-shirt and denim shorts were gone in favor of a button down blouse and baggy khaki shorts. The blouse was unbuttoned low enough to reveal that her well proportioned cleavage was supported by a swimsuit top. "What are we going to do?" she asked. "We're gonna do it," Ali said. "You're sure?" Lisa asked. "Yeah." I nodded. "Okay," she said, clapping her hands together. "This will be slow paced. Let me know if you get uncomfortable. I'm wearing a bikini, too. Since you two will be wearing less and less as the day goes on, I've got the heat up a little, and if it starts to get warm, I'll just ditch the shirt." Alison looked at me for reassurance. I squeezed her hand. "Let's start," she said, "like I said yesterday." I started pulling off my shirt as Ali's fingers began unfastening her buttons while Lisa explained to us that it would be just like we were standing there on the beach with getting undressed to go swimming. It sounded good in theory. Lisa had a disarming way of interacting with us to get us positioned exactly how she wanted, and when she helped me position my hand under the edge of Ali's blouse, my fingers on the skin just above her waist, it was almost natural. I could feel the tension in Ali's body as we stood there. Ali closed her eyes as I looked down between us, taking in the view of her breasts, covered only by the thin bikini top she was wearing. "Relax, Sis," I said, whispering. "What was that?" Lisa asked. "I was just telling Ali to relax," I said. An Uncomfortable Situation Ch. 02 After a long day of posing for Lisa, Alison and I finally arrived back at our apartment. We'd been partially undressed or nude almost all day, and things had gotten so hot between us during the final portion that we'd ended up fucking just for the sexual release. The whole way home, we'd held hands, but we'd been silent; no doubt thinking about what had happened between us. I watched her hips sway and took in the sight of her jeans stretched across her ass as she walked up the stairs ahead of me. Ali leaned against the wall outside our apartment as I unlocked the door. "I need a shower," she said. "Do you feel dirty?" I asked. It didn't sound right coming out, and I immediately regretted it. Ali just gave me a look before pushing away from the wall and walking into our apartment. She tossed her purse onto the kitchen table, grabbed hold of her shirt and began pulling it up over her head as she started walking down the hall toward her room. Ali stopped and turned, shirt bunched up around her neck, breasts straining against her bikini top. "No," she said, licking her lips, and taking a step back toward me. "I don't feel dirty, I feel wet. I still have your cum oozing out of me. It feels kind of..." A smile like I hadn't seen before crept across her face. "It feels kind of gross," she said. "And dirty..." She stuck her tongue out at me and threw her shirt at me as she began unfastening her jeans. I stood there looking at her as she unzipped and returned my gaze. Ali turned around and faced away from me as began walking toward the bathroom as she slowly pushed her jeans down her hips, her thumb hooking one side of her bikini bottom and almost pulling it loose. I'd been fine once we got dressed and left Lisa's, but now, I felt my cock beginning to get hard again. She stepped out of her jeans in the hall as she pulled the strings loose on her bikini top. Ali turned her head and looked back over her shoulder at me as she dropped her top and pulled the ties on her bikini bottom. Ali held on to her bikini bottom as it fell away from her body. She knelt down and picked up her jeans and top and walked into the bathroom, shutting the door behind her. My sister had a great looking ass, and her exposing herself to me like she'd just done had me hard again. Clearly, our relationship had changed, and things would never be the way they'd been when we'd gone to sleep the night before. For the first time, I thought there might be a good chance she was flirting with me; not flirting to play, but flirting to tease and entice. I went into my room and undressed, lying down on my bed in my boxers. A few minutes later, Ali came out of the bathroom. I quickly rolled off of my bed and stepped out into the hall, catching her in the hall, wiping water from her neck with the towel she held in front of her. Ali quickly ducked into her room, pushing her door closed. I headed for the bathroom, stripped off my boxers and climbed into the shower. Several minutes later, feeling a lot better, I turned off the water. I had just started drying off when the bathroom door opened. Ali leaned in wearing bikini panties and a thin, white tank top, her nipples pressing against the cloth. "Wanna watch a movie with me?" she asked, sitting on the edge of the bathroom counter and biting her lip. "Sure," I said. "What do you want to watch?" I continued drying off, keeping the towel in front of me. "I don't know," she said. "I just... thought we could curl up on the couch together. I'm sure we can find something to watch. " "We can do that," I said. Ali smiled at me nervously. Ali looked down, and I followed her gaze. She looked back up, her eyes a little wider than a moment ago. "I'm gonna go get the movie started," she said. "Okay." I finished drying off and followed her out of the bathroom, naked, just like she'd been when she finished her shower earlier. I grabbed a pair of boxers and pulled them on, my cock an obvious bulge beneath the cloth. All summer long, we'd spent more and more time together, actually sleeping together in the same bed more than once. Concern about modesty between us had apparently evaporated in the last few hours, and now, as my cock pulsed with the early stages of renewed arousal, I found myself, for the first time, consciously thinking of Ali as more than just my sister. I walked into the living room; Ali was sitting on the couch, bent slightly forward as she worked the controls on the DVD remote. "Is this okay with you?" she asked, flashing me a DVD case. I nodded to her. It was a chick flick, but I didn't care. It was a pretty good movie, and I knew from watching it with her before that we would spend most of the movie cuddled together on the couch. She finished fingering the DVD remote and sat it down on the end table beside her as I walked over to the couch. Her eyes locked onto my shorts, and then she looked up at me, her face turning red. I sat down beside her and the movie started, our fingers finding each other and intertwining. We were both restless, nervous, unsettled. No manner of position we took sitting upright was comfortable, and in a matter of minutes we were laying down on the couch, me with my back to the couch, Ali with her back to me. "I can't believe you're hard again," she said, settling herself and seemingly grinding her ass into me. "It doesn't take that long," I said, "and having you nearly naked and next to me..." I wasn't sure how to finish what I wanted to say. "What?" she asked, turning her head toward me. "Having me nearly naked and next to you... what?" "It... you... you're beautiful, Sis," I said. "I can't help but be turned on by you." I saw Ali's lips break into a smile. She took my hand into hers, pulling it to her chest, and I couldn't help but notice her rock hard nipples pressing against the cloth of her tank top, boring into my palm. A moment later, Ali adjusted her hand atop mine and moved my hand down her body, past her ribcage, down below the edge of her tank top onto the exposed skin of her belly and finally onto the gentle curve of her hip, past the scant line of her panties to her ass, and then bringing my hand back to her breast. "I like the touch of your hand," she said, pressing my hand to her chest and then relaxing. Halfway through the movie, my hand rested just below her breasts, feeling the rise and fall of her ribcage with each breath she took. The soft, fresh smell of her hair and skin filled my nostrils as her warmth radiated against me. "Who was your first?" she asked. "My first?" I asked. "The first girl I kissed, or...?" "Who was the first girl you had sex with?" she asked, tilting her head and rolling her eyes. "I know all about Sara." Sara was the first girl I kissed. "Melanie," I said. "I knew it!" Ali turned her head and licked her lips. "Kerri thought it was Susan." "You and Kerri talked about who I slept with?" Ali nodded, biting her lip lightly. "Remember that night that she slept over?" Ali asked. "She and Lexi and I stayed up most of the night talking about just about everything." Kerri, her best friend, had spent the night at our house back home one night before the start of summer school. Lexi, our younger sister, had turned eighteen three months earlier, right before graduating high school. I was suddenly beginning to see both of my sisters in a completely different light. "Lexi was part of that conversation, too?" I asked. "Yeah," Ali replied. "She's not the little kid you think she is. She told me about her prom date making the moves on her..." "She and...?" "No," Ali said, shaking her head. "She got cold feet after he felt her up and he dumped her." "So, ...?" "If she wants you to know," Ali said, "she'll tell you. Let's just say that graduation weekend was eventful for her in more ways than one." "Oh, but the two of you can talk about me?" I asked. "We speculated," Ali said, clarifying. I nodded as Ali reached behind her, fingers rubbing softly at the bare skin of my upper thigh. "So, who was your first?" I asked. "Clay." Her fingers dug into me, and then, almost as an after thought, her hand found mine and brought it to her lips. She kissed the back of my hand and held it to her face, her breath hot against my skin. "It was awkward," she said. "And uncomfortable. And..." She sighed heavily. "And, what?" I asked. "He was selfish," she said. "Selfish and impatient and rude." "What makes you say that?" I asked. "If I'd been with him this afternoon," she said, "he'd have been all over me, pawing at me and trying to fuck me. "Not like you." Ali kissed my hand again and sighed deeply. She shifted her body on the couch, almost as though trying to bury herself in it. I leaned forward slightly and kissed the back of her head, just behind her ear. A soft sigh as Ali smiled in contentment. "You like that?" I asked. She nodded. I kissed her again, rewarded again with what almost sounded like a purr, and Ali again pulled my hand to her breast. "What are you thinking about?" she asked. "I don't know," I said. "I guess I'm wondering what it's going to be like going back to Lisa's in the morning. Wondering how she's going to feel about having us modeling for her. I mean, today wasn't the only day of nude modeling she wants us to do, was it?" Ali shook her head. "I've been modeling for her for more about a month now," she said. "And she told me she likes to take it in cycles. So, I posed nude for her for the first time after I'd been there almost three weeks and then, when you and I started posing for her..." Ali looked away for a moment, then, looked back to me. "I didn't know she was going to ask us to pose nude so quickly," she said. "After today, I don't know what she'll want." "What if she wants us to do some more nude modeling together?" I asked. "Do you want to?" Ali rolled inside my arms to face me, shifting her body to keep from falling off the couch. "I do," she said. "It's easy money. It's good money, and we need it." She kissed my shoulder. "I enjoyed it," she said. Ali brought her arm down, grazing my hip with her hand as she leaned back and looked at me. "I enjoyed it, too," I said. "But, whether or not you told her we're a couple, she thinks we're a couple now, and my guess is she'll want us to pose together again about like she did today." "Or closer," Ali said. "It can't get much closer, can it?" I asked. "No," Ali said, sighing. "We were both pretty turned on this afternoon. And she said we had good chemistry together. I guess the question is if we're willing to give her that chemistry." Ali licked her lips. "It wasn't that bad, was it?" she asked. "Being naked with me?" I stopped breathing for a moment. "No," I said. "It's not that at all. I..." I could feel my cock getting hard. "I enjoyed it," I said. "Then what's bugging you?" she asked. "She said we acted like we'd never seen each other naked before," I said. "Yeah." Ali nodded. "I know. And we hadn't seen each other naked since we were little kids, and that was totally different from today." "Yeah." I could feel my face flushing and my dick getting hard. Ali's eyes got a little larger and she smiled as she reached between us; it was her turn to blush as she rubbed her thighs together and felt my cock. "You're getting hard again," she said. Our eyes darted back and forth, mine searching her face, trying to look into her heart, hers doing the same. I pulled her to me, kissing her on the forehead. Ali reached for me, pulling my face to hers, kissing me. Soft, vulnerable, searching, her lips pressed against mine. My lips met hers, and in a moment, we had blurred the line again, as our kiss was one of lovers, not siblings. Ali took my hand and placed it on the bare skin just above her hip. "I want you to touch me," she said. "I want to feel your hand on my skin." "Where do you want me to touch you?" I asked. "What do you want me to do?" "Touch me anywhere you want to," she said, whispering into my mouth. I brought my hand up under the edge of her tank top, caressing the skin of her upper back. "Mmmm." Ali moaned into my mouth as she held herself against me. She rolled away from me as I brought my hand around to her chest. Both of us were breathing hard. Ali laughed as she pulled back from me, her chest rising and falling rapidly with each breath. "Do you think that's enough chemistry for Lisa?" I asked. Ali licked her lips and moment later, we were tangled together, making out like two people in love for several minutes before Ali collapsed against me again, her head against my shoulder. I dipped my head and kissed her shoulder. Ali shuddered, smiling and breathing hard. "Do you want to kiss me like that with Lisa watching?" she asked. "Like this?" I kissed her shoulder again. "No," she said. "Like we were kissing a minute ago. Do you want to kiss me and make me breathless with her watching?" "Yes," I said, kissing up her shoulder, pulling the strap of her tank top down off her shoulder for my lips to moisten her skin. "And like this." Ali hugged me tightly and then slowly rolled away from me in my arms, putting her hand behind my neck as I trailed kisses down her collar bone. "I want to be more comfortable," she said. Maintaining eye contact with me, she slid off the couch, standing up slowly. Ali looked down at me, her shoulder still bare and the cloth of her tank top gathered up under her breasts. Still looking at me, she began to walk from the living room. I got up to follow her. She looked back at me as she paused in the doorway to her room, and when she was sure I was following, she went inside. Day's last light cast a haunting glow into the room through the shade curtain. Ali stopped at the edge of her bed and turned around to face me. Ali's hand dropped down between us, grabbing at my erection, her fingers pulling at my shorts, pulling them away from my body, exposing my cock. "You're not so little, are you, little brother?" "I guess not," I said. "Was it enough for you?" she asked, her fingers stroking at the head of my cock. "Was what enough?" "Before we finally did it," she said, "we were both hurting we were so aroused. And you were getting hard again before we got dressed to come home. Was the sex in her studio enough for you?" The question hung in the air. "Or do you want to get off again? Do you need to get off again?" "I got hard watching you get undressed earlier," I said. "You did?" she asked, smiling. I guess she was surprised, because her eyes widened; her expression quickly softening as she bit her lip nervously. I nodded. "And I feel like I could cum again as hard as I did earlier." "Really?" she asked, her eyes wide. "Because you came a lot." "You teased me all afternoon," I said. "I teased both of us," she said. She pulled her hand from my lap and rubbed it across her chest, her erect nipples popping back up against the fabric. "Kind of like you're doing now," I said. "Not me," Ali said, feigning innocence. "Yes, you," I said. Ali grabbed the hem of her tank top and lifted it, stopping when the edge of the cloth was just high enough to reveal the bottom curve of her breasts. Ali smiled and exhaled hard as her hand passed over mine. "Should I?" she asked. I nodded weakly as my fingers grazed her abdomen. Ali closed her eyes as she pulled her top over her head, shaking her hair and lowering her arms as I looked at her tits, really looked at them close for the first time. My hands wandered up her ribcage, and I felt her tremble as my thumbs grazed the lower edge of her breasts. "Are you comfortable?" she asked. "Would you be more comfortable if we were both naked?" "I guess," I said. Ali knelt down, pulling my boxers away from my erection and down my legs. I stepped out of them and she tossed them aside, never taking her eyes off of my cock. "Can I touch it?"she asked. She didn't wait for an answer; one hand cupped my balls; the other began stroking my shaft. "Don't you want to sleep with me?" she asked, looking up at me as she stroked my erection. "We've slept in your bed every other time," she said. "And we could again, and I guess I assumed you'd want to... sleep with me, that is. But I want to sleep in my bed tonight." "I do want to sleep with you," I said, stroking her hair with her fingers. Ali stood up. "Let me move some of these," she said, letting go of my hand and reaching for the stuffed animals on her bed. I watched as she bent forward at the waist, thrusting her ass back at me as she set them down on the floor out of the way. She stood back up, reaching for the rest of them, then bent over again, this time, bumping me with her ass. Ali looked over her shoulder at me as she both sat down the remainder of her animals and ground her ass against me. As she stood up, Ali spun around and sat on the edge of the bed, reaching for me. She seemed fixated on my erection, and I watched as she reached and gently wrapped her fingers around it. "Are you hard because of me?" she asked. I nodded slowly. Ali looked up at me as she slowly began to pump my shaft, and then she looked down at me again as she bent forward and licked at the head of my cock. She reached beneath me, cupping my balls, and as her hair fell forward, obscuring my view, I felt Ali pull my cock against her face, and then she opened her mouth and sucked in the head of my penis and began to rub the underside of my cock up and down on her tongue. Her lips closed on me, and she began to rise and fall on my cock, her mouth fucking me. After a few seconds of this, I felt like I had a steel rod extending from my groin, and my balls felt like they were large stones. And then, as suddenly as she'd started, Ali stopped, letting my cock pop free from her mouth. She sat up and rolled backward on the bed, the cloth of her panties all at once tight across her ass and revealing every detail of her sex. Ali planted her feet against my chest, at the same time reaching for me and drawing her knees to her chest. "Wanna pull my panties off of me?" she asked. I was suddenly all thumbs as I tried to grab hold of the waist band. Ali giggled and helped me find purchase, and a moment later, I was pulling the scant cloth from her feet and looking at her red, swelling sex, a light sheen of moisture visible. Ali took my hand and pulled it down between her legs. "Feel how wet I am?" she asked. I nodded. "I was wetter than that most of the afternoon," she said. I slowly traced my finger around the puffy red flesh and the hooded button of her clit. "I was sooo horny," she said. "And then we got undressed and you rubbed me with your cock." "I didn't do it on purpose, Ali," I said. "I know," she said, grabbing my hand and pulling it firmly against her. "But now you know that you can." She moved my hand until my middle finger rested between the folds of her pussy lips. She moved my hand up and down in a long, slow arc. "Put your finger inside me," she said. Too easy. My finger slid into her with no resistance as she sighed and gasped. "Oooh... that feels good," she said, rolling her head to the side. I continued fingering her, and Ali began breathing hard and writhing on the bed. "Tell me," she said. "Tell you what?" I asked. "Tell me you think I'm pretty," she said. "And that I make you hard. And that you want me. That you want to sleep with me. That you want to fuck me." I leaned forward, pressing against her pussy as I leaned down to kiss her. "You're beautiful," I said. "You're absolutely gorgeous and I get hard looking at you. I get hard thinking about you." An Uncomfortable Situation Ch. 02 I slid my finger in and out of her pussy again and kissed her neck. "I want you," I said, nuzzling her. "I want you, too," she said, her words airy and lustful. "I want to sleep with you," I said. "I want you to sleep with me," she said. "I want us naked in bed together, and I want your arms around me." "I want you," I said again. "I want... " My heart was pounding. My twin sister and I were naked together. Both of us were horny as hell and lost in desire for one another. I was masturbating her, and the only other thing more desirous in my mind at the moment was the urge to slide my cock into her pussy and fuck her. I leaned over her, kissing down past her collar bone, down the flat of her chest, my lips slowly trailing down her breast to suck in her nipple. I leaned up and kissed her softly on the lips and then whispered into her ear. "I love you, Sis. I want to fuck you." Ali clenched her thighs together and grabbed at me with her hands as I slid my hand firmly against her sex again. "Get on the bed with me," she said, almost out of breath. "And lay down." I lay down on the bed as Ali moved to make room for me, and when I was flat on my back, my cock was nearly pointing straight up. Ali licked her lips. Breathing hard, she sat up and straddled me, looking down at me with lust in her eyes. She leaned forward, her hair cascading from her shoulders to frame our faces together. "I love you, too, little brother," she said. "And I want to fuck you, too." Ali kissed me, her tongue invading my mouth as she reached between us to grasp my cock. She sat up again and pulled her hair back with one hand as she tugged on me with the other. "You almost made me cum," she said. "Almost?" I asked. She nodded as she licked her lips. "Why didn't you let me make you cum?" I asked. She bit her lip. "I don't know," she said. "I just wanted to wait and cum with you inside me." Ali raised up on her knees and scooted forward, lowering herself against my erection. The sensation was immediate and arousing as she slid the length of her wet, steamy sex along the shaft of my penis, making me shudder as she pulled the head of my cock into the wetness of her opening. Raising herself ever so slightly, Ali closed her eyes and guided me into her pussy, slowly lowering her body as she impaled herself on my cock. "You feel so good inside me," she said. I clutched at her hips, anxious to start thrusting, to cum inside her. Again. Ali leaned forward, pinning my arms with her hands. "Patience," she said. "Neither of us is gonna last long." I relaxed, let my fingers rest loosely against her upper thighs. Ali began to rock gently against my cock, her mouth opening as pleasure filled her senses. A smile crept across her face. "I like this," she said. She leaned forward, changing the angle of penetration, gasping when I sucked her nipple into my mouth. Ali began to bring herself a little higher off of my cock, almost unseating herself, and I took hold of her ass, thrusting up into her pussy. "Ohhh..." she dug her fingers into my shoulders and fell against me as I thrust into her. I could feel my orgasm beginning. "I'm... gonna..." Ali's breathing was rapid and ragged. She fell on my cock as I thrust into her again. Almost there. "I'm... I'm gonna... cum..." She was almost panting, a sheen of perspiration on her forehead and chest. "I'm about to cum, too," I rasped, the words barely escaping. "Cum with me," she said. "Cum with your sister. Fill my pussy with your cum." My fingers dug into her hips and I pulled her to me, hard on top of my cock, our two bodies one as our orgasms started. I felt Ali stiffen as my cock began shooting into her. And then we were both moving again, short, choppy motions intended to extend the pleasure, to help us get the most out of the euphoric climax. And then she collapsed into my arms, panting, sweating, both of us exhausted. We lay like for a couple of minutes before she finally pressed herself up and moved to the side just enough to collapse next to me. I turned my head to the side, and we found ourselves looking into each other's eyes. She licked her lips, leaned towards me and kissed me. "I love you," she said. "I love you, too, " I said. We lay there, silently, and then finally, several minutes later, Ali sat up, reaching for the covers and pulled them up over us. "Tommy?" "Yeah?" "I know we're going to be naked again tomorrow," she said. "Yeah." She pressed herself up and looked at me. "I don't think..." she stopped in mid-sentence. "What?" "Do you think you can do it, us be naked, like we were today, I mean, and not get turned on?" I looked at her. "I don't know," I replied. "I... I don't think so." She flopped down with a sigh, her head on my shoulder. "Me neither," she said. We lay there silently for several more minutes. "I guess we can always solve the problem the way we did today," I said. Ali raised up again and looked at me. "You'd enjoy that, wouldn't you?" she asked, a smile on her face. "I didn't notice you complaining earlier," I replied. "And you won't," she said. Ali's hand wandered across my chest. "What about Lisa?" she asked. "What about her?" "Do you think she saw us today?" Ali asked. "I do. I think she saw everything." "If she did," I said, "she didn't say anything." "And I don't think she would," Ali said, leaning up. "But what if she does? Say something, I mean? What if she wants us to pose like that?" I rolled towards her, pulling her close, running my hand down her body, feeling the curve of her hip as she slid a leg over mine. "Would you want to?" I asked. "I mean, she's already pretty much seeing everything else." "I know," Ali said. I squeezed Ali's hip, pulling her close. "Don't worry about it, Sis," I said. "Everything'll be fine. You'll see." Ali looked into my eyes and kissed me as she melted into me. It was unlike anything I'd ever known. I was in bed, naked, kissing my sister after sleeping with her. I was in bed, naked, kissing my lover after making love to her. And as the warm glow of affection flowed from our kiss, as our bodies melted together, I knew things had changed between us in ways we did not fully understand yet. Our lips parted, both of us out of breath, our hearts pounding. "G'night," she said, rolling over. "G'night," I said. "Does this make me your sweetheart?" she asked, pulling my arm around her, snuggling my hand to her bare breast. "Yeah, I guess it does." An Uncomfortable Situation Ch. 03 Lisa looked at the sketches sitting on the easels spread out around her. At age 28, she was managing to make a living with her God given talent, even if her work was far from spiritual. An art degree and many long hours had finally translated into a reputation for sincere and well presented personal sketches. Several sets of her sketches had been bought for the purpose of decorating halls in various places. Off to the side, sitting on the table, leaned back against the wall, was the best of the bunch so far. Ali was a natural. She was very pretty, and yet she still exuded a unique innocence and sensuality at the same time. That was rare. Like so many, she'd been uncomfortable at posing nude to begin with, but she'd quickly gotten over that. Lisa stepped back and bit her lip as she compared angles on two of the sketches. Light shading could make a profound difference if it was done differently, and Lisa didn't want to waste these drawings. Her newest young model had served to inspire some beautiful nude sketches; the modest curves of her breasts, the flat of her belly followed by the gentle descent down between her legs. And even on paper, the sensuality. Ali, even her image in shades of gray, made Lisa's pulse quicken, and as Lisa pressed her thighs together and ran a hand across her breast, she smiled and admitted to herself again that she did indeed find the young girl attractive. And tomorrow, she reminded herself, she's bringing her boyfriend with her to pose. Ali had initially resisted the term, 'boyfriend,' finally yielding to it just to bring closure to the issue of who the young man was to her. Lisa turned away from the sketches and walked over to the edge of her bench, shrugging her shoulders back as her shirt fell away from her body. She pulled the drawstring on her shorts, and they fell to the floor. If she'd been wearing a bra, Lisa would have shed it, but she wasn't wearing one. She liked working wearing as little as possible. Her thumbs hooked into the waist band of her panties and she pushed them down from her hips. She enjoyed drawing and painting nude. It was liberating. She looked at the sketches again and picked up her pencils. This one, she thought. In it, Ali lay reclining, her legs spread gently apart, revealing her sex. Slowly, with concentration and skill beyond what most possess, Lisa applied the points of her tools, and over the next couple of hours, her sketches came to life. Night fall. Lisa picked up her clothes and walked slowly across the floor of her studio into the area she claimed as a living space. Throwing herself down onto her bed, she looked out the window at the starry sky as shadows danced across her naked body. What would tomorrow bring? she wondered. Would Ali's modeling partner lend himself as well to the sketches? Would they have it? Would they have that magical chemistry that makes mere sketches of couples come alive with sensuality? Her fingers traced around her hardening nipples and she hoped. The next morning, Lisa was up and out of bed earlier than usual. In and out of the shower, she waltzed into her kitchen naked and grabbed something to eat before going to get dressed. And then, nervous anticipation. Finally, Ali and her partner, Tommy arrived. He was a good looking boy. Like Ali, his physique had not filled out completely yet, but Lisa could see he would be quite handsome when he did. The first round of posing went well, and all too soon, it was time to call it a day. Lisa watched as the two young people walked away to their car, and she thought to herself, they're so at ease together. She ate a quick dinner and then returned to her sketches. She knew she already had several of Ali's nudes sold. Tomorrow, she'd move them towards doing nude sketches posed together. The next morning, Ali and Tommy arrived right on time, and after picking up where they'd left off, Lisa steered them into more personal, intimate poses. Lisa immediately knew she had a winner. The ease they felt together translated very well into a relaxed presence in front of the easel. Near the end of the day, she propositioned them. Would they pose nude for her? Together? They left that afternoon, saying they'd think about it. They came back the next morning, ready to move forward, ready to pose nude for her pencils. Lisa started them off slowly, working toward the goal. Shortly, they stood together, not quite in an embrace, the only piece of cloth between her breasts and his chest her bikini top. Ali seemed nervous. And then... what did he say? Sis? Lisa stopped, lifting her pencil from the paper. Were these two brother and sister? Tommy said he was just encouraging Ali to relax, and Lisa dismissed her thought. Later, Lisa pulled Ali to where the completed sketches rested. She was embarrassed. What girl, especially one on the verge of posing nude with her boyfriend would ever protest him seeing her nude? Yet she'd clearly expressed apprehension about Tommy seeing her nude sketches. Their hands joined, and Ali's body language indicated she'd relaxed, and then it was time for them to begin posing in a manner that suggested true intimacy. They exchanged hushed small talk as Lisa sketched. Her pencil stopped. Sis. That diminutive word again. As she was about to ply pencil to paper again, Lisa stopped. Brother. She looked up. Did Ali just call him her brother? A short while longer and it was time for a change of pose. The moment of truth? Lisa wanted them naked. Out of the corner of her eye, she watched as he untied her bikini top. The young girl's nipples had been swollen points beneath the cloth for some time now, and as Lisa looked closer at them in this moment of unpenciled intimacy, she couldn't help but notice the more than noticeable protrusion in the young man's boxers. A moment later, both of them were nude, their skin flushed, chests rising rapidly as their breathing quickened. "You're going to have to stand closer together than that," Lisa said. "You two are acting like you've never seen each other naked before. Get closer together." Lisa walked over to the two of them and with gentle touches, she maneuvered them into the pose she was after. Lisa left them liked she wanted them, but as soon as she stood at her easel, pencil in hand, she knew something had changed. And then she saw it. Ali had her hand down between her groin and Tommy's raging erection. Lisa studied the image in front of her for a moment. Was she shielding herself from her partner's phallus, or was she drawing it to her? "Okay," Lisa said. She paused, looking at us. "Great. Ali, I like the way you're holding his penis, drawing it to you." Lisa decided she was seeing a lover touching her partner as she coaxed him in. "I want the two of you to kiss," she said. "It doesn't have to be a full on kiss. Just bring your lips together, not quite all the way, sort of like you're just coming together to make love." Ali's eyes grew big as Lisa made her last statement, but she leaned forward anyway, her eyes closing as their lips touched lightly. As Lisa sketched the couple, she was sure they were growing more and more aroused. Was Ali using the head of his cock to stimulate herself? Surely not, but that's what it looked like. Lisa took a deep breath, realizing she herself was becoming aroused. She was. Lisa paused to watch the now unmistakable motion of Ali rubbing the head of Tommy's engorged penis in the opening of her swollen, wet sex. Finally, Lisa decided the two of them had lasted about as long as they could without release. She told them to relax and take a break; she'd be at least ten to fifteen minutes as she had a couple of things to do. That would be long enough for the two of them to take care of one another, shouldn't it? Lisa left the studio and made straight for her kitchen counter. She didn't have anything to do. The voyeur within her was screaming as she reached for her digital camera. It wasn't high dollar, and it wasn't fancy, but it took good, clear pictures. And it was quiet. Very quiet. Lisa walked around the corner, just out of their field of view just in time to see Ali plunge a finger deep inside her pussy as she pleasured herself. Tommy's swollen cock swayed in front of him, long past being ready for intercourse. Click. Lisa zoomed the telephoto lens in tighter. Click. Perfect. Lisa hadn't seen Tommy naked well enough to evaluate him, yet, but she was sure she wanted to sketch him nude. Some thought it strange, but she enjoyed drawing the male nude. Especially when they were alone. She'd often remove her clothing, inspiring his erection. She could usually coax her subject to masturbate for her; vain pride was a powerful motivator. Sometimes, she gave in to desire and either sucked or fucked the subject of her drawing. Ali reached for him, pulling him to her. Click. Their mouths pressed hungrily against one another as they contorted their bodies, trying to get it right. Click. They rocked and rolled against one another, all but deep in the act of intercourse. Click. Why was their hesitancy? Click. Ali raised up on her toes, and a moment later, impaled herself on Tommy's cock as he thrust up into her. Click. The effect was almost instant. Click. He pressed her against the wall as he thrust into her. Click. Urgent. Click. Needful. Click. Sudden release. Click. Their bodies shuddered together, his thrusts suddenly ragged as he shot his semen into her womb. Click. Her fingers dug into him as they both went limp and began to sink to the floor. Click. Lisa had not noticed her own breathing becoming shallow, and with a brief muscle twitch, she lost balance for the briefest of moments. Pencils. The box clattered to the floor and they went everywhere. Pulse pounding, her face flushing with embarrassment, Lisa vanished back the way she'd come, back to her kitchen, where she hid the camera in the cupboard. Her breath was as rapid as her pulse, or so it seemed. What had she just seen? Really? What must they think? What should she say? She thought for a couple of minutes as she fought to gain control over her breathing. She'd play it off as though she'd walked in, back earlier than she'd planned, and she'd comment on what she'd seen only if they brought it up. Otherwise, she'd hope everyone else would let it go. Lisa walked back into the studio. Their clothes were there; they weren't. The bathroom. They must be in the bathroom. Lisa spread sketches out in front of her and waited. A few minutes later, they appeared, much calmer than earlier. Ali's pussy glowed red, her lips still swollen, and even though they'd both climaxed minutes earlier, Tommy's cock still appeared as though he could be ready for her again quickly. Yes, Lisa told herself, I want to sketch him nude. But that could wait. "I need to work on touching a couple of these sketches up and get some canvases working," Lisa said, looking up at them. "Why don't we call it a day," she said. "You two go home and get some rest. Today was a hard day." She immediately wished she'd used other words. "What I mean," she said, "is that posing in the nude can be emotionally taxing in some situations. And I think today was one of those days. We can pick back up and go at it again tomorrow. If that's okay with both of you?" Did she still want them to pose for her? "Absolutely," she said, stepping forward and hugging both of them. "I'm really looking forward to spending more time with you together." Of course she wanted them to pose for her some more. Why would she not? Lisa went back to her sketches as they got dressed. She closed the door behind them when they left and then watched from the window as they walked to the parking lot. There was still something sweet, innocent, unidentifiable about them together, she thought. Her mind lept back to the words she was sure she'd heard. 'Sis?' 'Brother?' Later that evening, Lisa sat in front of her computer, her digital camera hooked up. She'd gotten more than two dozen pictures. The photos would never be shared with anyone; she did have some morality about it, after all. But they were intoxicating. She was naked, save for the robe that casually adorned her body; it was thrown open, and she sat leaned back in the chair, feet up on the desk, legs spread as she dialed the phone. As she held it to her ear, the fingers on her other hand were busy between her legs. The slide show, that and her imagination, imagining things to come, they would fuel her orgasm. She slid a finger in between the folds of her swollen pussy and could feel it building within her. The phone rang a third time, and then the other end picked up. "Charles?" She waited for a reply. "It's Lisa." A brief exchange of pleasantries. "Listen," she said, "the reason I'm calling is this; I think I may have a couple willing to pose for some... special sketches. Are you interested?" An Uncomfortable Situation Ch. 04 The next morning started off a little different than previous mornings. Ali in bed with me wasn't a new thing. Waking up, both of us naked, was. We were nestled together, spooning, her back pressed against me, my hand resting against her belly. I felt a surge in my cock as my morning erection began to grow, and I ran my hand up along her skin, grazing her breast. "Mmmm." Ali purred as she stretched, starting to roll onto her belly. My hand brushed her skin, tracing around her ribcage and onto her back, trailing down to her ass as she prostrated herself on the mattress and rolled her head to face me, pushing her hair back out of her face. "G'morning," she said, laying her head back on the pillow. "Morning," I said, leaning over and kissing her. Ali sat up with a start, looking at the clock, and then flopped back down. "I was afraid we might have overslept," she said. I turned to look at the clock. "We've got plenty of time," I said. "I know," Ali said, rubbing the sleep from her eyes. "I'm gonna go take a shower." Ali kissed me again as she climbed over me and skipped out of her bedroom. I rolled over in the bed, my cock throbbing with early morning zeal. I took a couple of deep breaths and crawled out of bed. I looked down the hall, rewarded with the sight of Ali bent over adjusting the water, her ass thrust back at me. A moment later, she pulled the shower curtain closed. I went to the kitchen to find something to eat, and as I walked out of the kitchen, my erection swayed in front of me, refusing to go away. The events of the day before were still a rush in my mind, and I couldn't escape the thought that I would once again be naked with Ali, in front of a woman I barely knew, for most of the day. What sort of posing would Lisa want us to do? Would it be as sexually charged as yesterday afternoon had been? I closed my eyes and wrapped my hand around my cock, beginning to stroke gently. I couldn't shake the image of Ali's gorgeous ass, and I knew if I didn't do something, I'd start the posing session with a massive hard-on. "What are you doing?" My eyes snapped open to see Ali standing in the doorway to my bedroom. She held the towel just in front of her, but I could still see her breasts pushed up against her arm. "I... "Caught masturbating by my sister, I couldn't find words. "I mean, I know what you're doing," she said, stepping into the room and walking over to my bed. "But why?" Ali sat down beside me on the bed, dropping her towel. Her fingers grazed my cheek as she kissed me softly on the lips. Her hand fell to my lap, taking hold of my cock. Her thumb rubbed over the head. "If I don't," I said, "I'll be hard when we start this morning." Ali kissed me again. "I don't care," she said. "And I don't think Lisa does, either." "If she has us pose like we did yesterday afternoon..." I said. "If she has us pose like we did yesterday afternoon," Ali said, "you being hard won't be a problem." "Remember how horny we both were?" I asked. Ali bit her lip, nodded and smiled. "And if we get to that point again..." My words trailed off. "We'll... have to take care of each other again." "You're not worried about her seeing us?" I asked. Ali shook her head. "I got to thinking about it while I was in the shower," she said. "I'm pretty sure she saw us." Ali leaned in and kissed me, nipping at my lip. "And she didn't say anything," she said. "So..." "So?" "So, I don't think she minded," Ali said. "And besides, it's not like we meant for her to see us. It'd be different if we actually had sex in front of her. "You know," she said, "if we were actually having sex for her to draw it or paint it. We just have to be more careful." Ali's hand slid slowly up and down my cock. "You keep doing that," I said, "and you're gonna make me cum." Ali stopped. "I'll make you cum," she said. "Later." She stood up, turning to face me, sliding between my legs. "Just promise me one thing," she said. She was standing near enough to touch, my cock pointed straight at her pussy. "What's that?" I asked. I reached out and rubbed her thighs. "Come to me when you want to..." she looked down at my cock. "When you're hard and you need to cum, let me know." "Ali..." "If we didn't have to get ready to go," she said, "I'd finish you now." She leaned in and kissed me on the cheek. "And I promise I'll take care of you one way or the other today," she said. "But right now, you need to grab your shower." When I came out of the shower, Ali was walking down the hall naked, coming from the kitchen. I was dressed in a couple of minutes, and when I leaned into Ali's room, she was still naked. "You gonna get dressed today?" I asked. "Bra or no bra?" she asked, turning around and cupping her breasts in her hands. "Seems kind of pointless when I know it's coming off as soon as we get there, ya know?" "So don't wear one," I said. "You'd like that wouldn't you?" she asked, walking over to me. "You'd like to watch my boobs bounce up and down beneath my shirt, wouldn't you?" I nodded. Ali smiled at me and turned to her bed. I watched as she pulled her hair back into a pony tail and then pulled a t-shirt over her head. Next, she pulled on a scant pair of bikini panties and reached for a light skirt that I remembered hit her mid thigh. "You wanna pull my panties off me again today?" she asked. I nodded again. "Are you trying to keep me hard?" I asked. Ali nodded and smiled as she stepped into her skirt. She slipped on sandals as she tied the t-shirt into a knot just above her waist, and we left the apartment. We arrived at Lisa's about ten minutes later. We knocked three times on Lisa's door, waiting several seconds before knocking a little harder than the last time. Finally, we heard Lisa's voice calling out to us, telling us she was coming. The door swung open, and Lisa stepped back, holding onto the door knob as she held a robe pulled closed about her body. She smiled at us, appearing to be out of breath as we walked in, and when she closed the door behind us, she fell against it, taking a deep breath. "Hi," she said. "I'm sorry. I lost track of time; I was out back on the patio working on a sketch and almost didn't hear you knocking." She stepped toward us, trying to hold her robe closed as she kissed us both on the cheek and hugged us warmly. She didn't succeed; Ali and I both got a brief glimpse of her breast before she pulled her robe together again. "I'm glad to see you both came back," she said. "Come on, I want to show you what I worked on after you left yesterday." Lisa grabbed Ali by the hand and led us through her house to the studio. I followed close behind; Lisa's robe was short, and it just barely covered her ass. "I don't usually answer the door naked," she said. "That's okay," Ali said. "We don't mind." "I do like to work in the nude, though," Lisa said, leading us through the patio door. "But you already knew that." She was looking right at Ali, who nodded. I only caught the last part of their exchange out of the corner of my eye. My attention was focused on the easel in front of me. Sitting at the top of it was the sketch of Ali and me standing naked together. There was no mistaking that she was holding my cock in her hand. Down to the right was a sketch of her reclining back against me. On the left was a sketch of... that wasn't Ali. "That's a sketch of me," Lisa said. She was nude in the sketch, sitting in a chair, legs parted, clearly relaxed. It was a good drawing. "How...?" Ali asked. "A mirror," she said, pointing to the wall. It was a full length mirror, and I now saw the chair Lisa had been sitting in. "What do you think?" Lisa asked. "Self portrait sketches are always a bit of an exercise in ego for me." "Impressive," Ali said. I nodded in agreement. "It's a good likeness," I said. "A very good likeness," Ali said. "Thank you." She continued to look at the sketch for a few moments and then looked around the patio before looking back at us. "So..." Lisa bit her lip and hugged her arms tighter about her body. "I did some thinking last night and this morning, and I'd like to throw some ideas out and see what you think." Ali and I looked at each other. "Okay," Ali said. "First, there's something about natural light, even with shadows like I have out here. I like the texture it can add, so, if you don't mind, as long as it doesn't get too warm, I'd like to do some sketches with you posing out here on the patio; maybe make that something we do in the mornings before we have to go inside where it's cooler." Ali and I looked at each other and nodded. The idea of being naked outside with Ali was exciting in and of itself. I knew a cool breeze blowing on her skin gave her goose bumps; I was sure it would make her nipples hard, too. "Awesome." Lisa. "Now... could you both go ahead and get undressed? Just toss your clothes over there. I want to look at something. I've got a couple of ideas I'm toying with." Lisa turned away from us as we started undressing. I diverted my eyes from Ali long enough to see Lisa's robe sag open as she began flipping through some sketch sheets, spreading them out on a table in front of her. I looked back at Ali, who was stepping out of her skirt. She looked over at Lisa, then back at me and smiled. Ali made a show of taking off her shirt, thrusting her tits at me, and then watched, smiling as I finished stripping out of my underwear. My cock was once again nearly erect, and as Ali turned away from me so I could strip her panties off, I felt my pulse quicken. Ali bent over and picked up her panties, tossed them over with the rest of her clothes, smiled at me and we turned to face Lisa. She was seated on a stool, her robe open but covering her breasts, with a handful of sketches in her lap. "Come a little closer." Lisa waved us over to her. "Closer." Her eyes danced up and down our bodies before lingering on Ali's pussy and my cock. Lisa took a deep breath and exhaled slowly. "These are a few of the first sketches we did, Ali." Lisa turned sideways, affording us a better view of the drawings in her lap. In every one, Ali was nude, or nearly so, wearing at most a pair of panties, and occasionally, partially covered by a sheet or towel. "And these were the first frontals we did." She looked up at Ali, then at me. Four sketches. Ali wore nothing in them. She was completely naked, and depending on the pose, increasingly vulnerable to the artist's gaze. In the most graphic of the drawings, Ali lay reclining, one foot planted flat with her knee bent, the other leg splayed to the side, knee equally bent, her pussy fully visible. What immediately drew my attention to this drawing was not its graphic nature, but the fact that my sister's pussy had a lot more pubic hair than she had now. Either Ali had shaved after the fact, or Lisa had taken liberties with the image. "I want to do another series like these, some with the same exact poses, some with both of you, so they'll be a little different." Ali nodded. "Okay." "I'd like to do some of you, too." Lisa was looking at me. "You want to sketch me?" I asked. She nodded. "I want to draw you. Dressed just the way you are now." In one sudden instant, I felt my face flush, my pulse quicken, my balls tighten and my cock began to throb. "I don't do a lot of male nudes," she said. "Some guys are reluctant to pose. But I enjoy drawing men. So, if you're interested, I'd like the opportunity. Here's the catch, though. For both of you, actually." Lisa bit at her lip and looked at both of us. "I'd like for you both to shave." I looked over at Ali. "Shave?" Ali, her face suddenly red, was looking at Lisa. "You want us to shave?" Lisa nodded. "You don't have to, but it makes everything stand out more." She made the last comment waving her hands. Her eyes settled on my cock. "Not that everything needs help standing out." A nervous laugh. "Okay." Ali looked at me, then down at my erection, then over at Lisa. She looked at me again. "Do you think you can...?" "I don't know, Ali...." I wasn't sure about this whole shaving idea. "If you want me to, I can help." Lisa turned away from us, shuffling the sketches on the table. "Could you?" Ali looked like a weight had lifted off her shoulders. Lisa nodded, turning back to us. She pulled her robe closed again and stood up. "Go start the water in the bathroom," she said, "and get the shaving stuff out. I'm going to go throw some clothes on and I'll be there in a minute." We followed her back inside and split off, headed to the bathroom. Out of the corner of my eye, I saw the robe slip from her shoulders as she passed the kitchen. "Are you sure about this?" I asked. Ali nodded as she opened the cabinet door. She pulled out a can of shave gel labeled silky smooth and a couple of razors and turned on the water. "When I started posing for her," Ali said, "I had a lot more hair, just like in the sketch. She helped me shave it and shape it. I like the way it looks and feels." Ali ran her fingers down between her legs, splitting her pussy lips with her middle finger. "From what I can tell, you like it, too." I smiled. "I do," I said. "I just don't know if I want to..." "It'll be okay," Ali said, wrapping her fingers around my shaft. "We'll take good care of you." Lisa walked into the bathroom. She'd gotten dressed, putting on a thin pair of cotton knit shorts that weren't tight, but nonetheless seemed to hug her ass and a spaghetti strapped top that buttoned in the front. It wasn't threadbare, but it was thin, bordering on translucent; her nipples practically glowed through the fabric. She'd left it mostly unbuttoned, meaning I had an almost unobstructed view of her breasts. "Just so you know," Lisa said, looking at me, "this isn't just something I ask my models to do. I shave, too." I thought back to the self-portrait drawing Lisa had shown us. Her pussy was bare in the drawing. "Okay," she said, sticking her hand in the water. "Ali, let's go ahead and do you first." "Okay." Ali smiled nervously and stepped back as Lisa spread out a towel on the counter. A moment later, Ali was sitting on the bathroom counter, legs spread as Lisa pressed a warm, moist washrag against her pussy. Ali leaned back, eyes closed and smiled contentedly. "That feels really good," she said. "Here," Lisa said, grabbing my hand. "Hold this in place for me." She pulled my hand between Ali's thighs, and now I was holding the rag against my sister's sex. Lisa moved behind me, putting her hand on my hip. It seemed like she was copping a feel of my ass, and maybe she was. Anyway, she grabbed the shave gel, shook the can and squirted some into her hand. "I think Ali has a pretty little pussy. Don't you?" Lisa looked at me and smiled. I nodded. "Okay, you can go ahead and pull the washrag away." Lisa moved closer and began to lather up between Ali's legs. "You have to be really careful when you do this," Lisa said. "Very careful." She picked up the razor, ran it quickly under hot water and shook it. "You could almost say this is one of the most intimate things that you can ever do for someone, and I dare say there are precious few things that require as much or more trust." I had to agree. I watched as Lisa slowly traced every inch of Ali's pubic region with the triple bladed stick, ultimately leaving my sister bald. Lisa then took great care to rinse every trace of lather residue from Ali's sex before finally running her fingers over the newly bare, silky smooth skin. "How's that?" Lisa asked. "Wonderful." Ali was enjoying the attention, and I watched with sudden interest as Lisa pressed her hand between Ali's thighs, slowly running a finger between her swollen lips. "I know you're enjoying this, but we need to shave Tommy." Lisa leaned forward and placed a series of short kisses on Ali's newly bare skin, finally closing her lips around Ali's clit and lingering for a second. Lisa raised up and squeezed Ali's thigh. Ali opened her eyes, looked at Lisa, then at me. Lustful desire resided there. My sister was in a state of high arousal. I understood perfectly. Ali crawled down from the counter as Lisa dug into the cabinet again. Out came an electric hair trimmer. Sixty seconds later, my pubic hair had been reduced to mere stubble, and I sat where my sister had been minutes before. "Ali, get him warm and wet with the washrag." A moment later, my cock and balls were swaddled in rapturous warmth as my sister covered my genitals with a washrag that started out nearly steaming hot. And then Lisa moved between my thighs, shave gel in the palm of her hand. "Are you ready?" she asked. I nodded. "Okay." Lisa nodded and Ali pulled the washrag away. Lisa dipped three fingers into the shave gel and began dabbing it onto me. "I've actually done this several times before," she said. "The fact that you're hard actually helps quite a bit." My balls were covered in lather that extended to cover part of my thighs. "I'm going to warn you, though," she said. "In order to shave you, I have to touch you." "Okay." Lisa bit her lip, looked over at Ali and looked back at me. "I need you to understand something. I'm not going to try to make you cum, but sometimes, depending on how sensitive you are and how aroused you are, it can happen." Her hand slid up and down my shaft. The lather was very, very slick. "If you think you're going to cum, it's okay, I don't mind, just tell me before it happens. Okay?" I nodded. If she wasn't careful, she'd make me cum. "You have a nice cock," Lisa said. "Nice and hard." Ali and exchanged anxious glances. Several minutes later, I was as void of pubic hair as my sister. Lisa finished up the same way she had with Ali, rinsing very thoroughly to make sure all of the lather was gone. Finally, she stood up and admired her handiwork. "Normally, I'd kiss it, but..." Lisa looked over at Ali. "I don't care," Ali said, reaching in and stroking me. "You did all the work getting him nice and smooth." Lisa looked at me, dipped her head forward and kissed the head of my penis. She held my cock against her pursed lips, the head resting against the lower one. If her mouth had been open, and if I'd been cumming, I'd have filled her mouth with semen. Easy. Lisa stood up, brushing both of us with her fingers. My cock twitched, wanting more. Something. Anything. My desire was briefly rewarded by Ali shoving her hand between my legs, cupping my balls and pulling her fingers forward, gently caressing my scrotum before stroking my shaft again. If I didn't get some sort of relief soon, I'd be in for a long, painful morning. "Okay, then." Lisa turned to walk from the bathroom. We followed her. My engorged penis swayed like a baseball bat jutting from my groin. Between Ali being naked beside me and the sight of Lisa's ass clad in snug shorts in front of me, there was no avoiding arousing influence. "Ummm... the first pose I'd like to do outside is one with the two of you just holding hands, like you're walking." We stepped out onto the patio and closed the door behind us. "Right over here," Lisa said, pointing to the spot where she wanted us to stand. Ali and I walked to where she stood. Lisa put her hands on our shoulders, steering us into position. "Okay, go ahead and hold hands. No, don't lace your fingers together... yeah, just like that." Ali's hand rested inside mine. "Here." Lisa pulled our clasped hands out in front of us and pushed us a little closer together. "I want you almost touching together at the hips. Perfect." An Uncomfortable Situation Ch. 04 She stepped back and looked at us. I felt naked. My cock was throbbing and my balls were beginning to ache. Lisa turned around and walked over to the cart holding her supplies. She dug around for a couple of seconds and then looked over at us, as though reconsidering something important. She looked back down at her cart and scooped up a handful of her pencils and rifled through some of the papers underneath. "Go ahead and relax for a few minutes," she said. "I've gotta go inside and reshape a few of my pencils and get a new pad." Lisa stood there with her mouth open for a minute. She took a deep breath and held it. "I don't necessarily care how you do it," she said, looking down at my cock, "but try and calm it down a little. I'd actually prefer to sketch this without you being hard." "Okay." I don't know that I'd have said my penis had a mind of its own, but I couldn't just will my erection to go down. We watched Lisa walk back inside, pulling the door closed behind her. Ali, still holding my hand, looked down at my cock, throbbing and bobbing in front of me. "You are really hard," she said, palming me and running her hand over my newly smooth cock and balls. "I know." I looked over at the patio door again. "Does she answer the door like that and work naked that often?" I asked. Ali nodded and shook her head in one jumbled motion. "She doesn't answer the door naked, or nearly so, like she did this morning. She does like to work naked, though. I'm pretty sure you'll get to enjoy that experience soon." "You're okay with that? She shaved both of us, kissed us both... I mean..." "I know what you mean." Ali ran her hand up and down the shaft of my cock. "And it's fine with me. She's seen us both naked. It's not like we have anything left that we can hide from her." "No." "And..." Ali looked over at the door and back at me, biting her lip. A red glow started at her collar bone and flushed upward, shading her face. "The first time she shaved me..." "Yeah?" "I'd been posing nude for more than a week, and when she shaved me, she did more than just kiss me." "What do you mean, she did more than kiss you?" "You saw how she was fingering me and how she kissed my pussy?" "Like this?" I ran a hand down her belly and between her legs. My fingers split the folds of her sopping wet sex. "Yesss." Ali clenched my hand tightly as my finger penetrated her. I'd never felt a girl's bald pussy before. Ali's shaven cunt felt silky smooth. "She did a lot of it." Ali's chest rose and fell rapidly with shallow breaths. "She made me cum." My eyes went wide. "You can't say anything." "I won't." Ali looked down at my erection, throbbing in her hand. "Is it like yesterday afternoon? Is it hurting yet?" "Not yet. But it will be soon. And I can't just make it go down." Ali bit her lip and looked at me and then looked around the patio. "I don't know what to do," she said. "I mean, we need to do something, but if you cum inside me, I'll have to go clean up or it'll ooze out and..." I looked around. Nothing. "What are you looking for?" "I was seeing if there's something I could masturbate and cum in." "I told you this morning..." "You told me this morning to let you know when I needed to cum. Lisa doesn't want me hard right now, and the only way that's going to happen is if I cum." Ali looked over at the patio door, then back at me. "Over there," she said, pointing to a bench. We walked the few feet to the concrete bench. Ali turned to face me and put one foot up on the bench. Her hands reached out to me, one grabbing my arm, the other touching my balls, urging me towards her. Standing so close we were almost touching, Ali pushed my cock down between her legs and thrust her pelvis forward, grabbing at my shoulder for balance. I felt the head of my penis slide through and split her wet, swollen outer lips. I reached out, grabbed her hips and tried to thrust into her, but she leaned back and shook her head. "Don't. Not right now." "Then what are you doing?" "Do you trust me?" I nodded. Ali smiled. "Just let me know when you're about to cum." She thrust her hips forward again, and again, I felt my cock plow through her swollen labia. This time, though, I resisted the temptation to thrust into her. Instead, I closed my eyes and savored the exquisite pleasure visited upon the head of my throbbing penis. Ali didn't get into a rush; she was slow and methodical. Maybe too slow. Every move she made was slow, even and deliberate as she rubbed herself against me, pleasuring both of us as she worked towards getting me off. I opened my eyes and looked at her. Ali's breasts swayed gently against her chest, her nipples hard little buds. Her mouth was open and I leaned forward and kissed her, darting my tongue in to touch hers. Ali smiled and bit her lip as she opened her eyes and looked at me. She closed them again and continued to slide her wet pussy against my cock. My fingers clenched at her hips and her eyes opened again. "Close?" "Getting there." Ali smiled. She thrust her hips forward again. This time was different though. She rolled her hips forward and for the briefest of moments, the head of my cock penetrated her opening. She rolled her hips back again and I closed my eyes, losing myself in the sensation. Ali repeated the motion. I felt her pussy sucking the head of my penis, caressing it, stroking it, pleading with it to spew cum inside her. And then she rolled her hips back. I could feel my balls tightening. Forward again. For the third time, the head of my cock slid into the opening of her cunt, caught in the velvety wetness of her arousal. Ali froze, holding herself against me, slowly pushing forward and then pulling back. Again she flexed forward. Again, the lower half of her body surged farther forward, drawing me a little deeper inside her. This time, Ali didn't roll her hips back. Instead, a series of short thrusting motions rocked the opening of her pussy against the head of my cock. My eyes flew open. "Ali..." "Yeah?" An airy, lusty look in her eyes as she flexed herself against me again. "Ali..." She smiled and closed her eyes as she pushed her pelvis even further toward me, ever closer to drawing my cock inside her pussy. Ali thrust herself quickly and deliberately against the head of my swollen, throbbing penis. I wanted desperately to plunge inside her, to push my cock into her womb and cum. There was no turning back now. "Ali..." "I know, baby..." Ali blinked rapidly and smiled at me. Her hot, wet, naked pussy slid against the head of my cock again. "Unnngh... Ali..." I was going to cum. She rolled her hips forward again, pulling me in, and for a moment, I thought she was going to give in to my desire. For a moment, it felt like she was going to impale herself on my erection. But she didn't. Short quick thrusts. Her pussy massaged the head of my cock, coaxing it, enticing me to cum. "Ali..." "Are you... gonna cum, baby?" "Yeah..." "Don't cum yet, baby. Hold it. Don't cum yet..." Ali thrust herself against me again. "Ali... I wanna cum inside you." I had my eyes closed, focusing on the pleasure, but I felt her shake her head and heard her say... "No. I don't want you to cum inside me. Not right now." The head of my cock was in and out of the opening of her pussy as she continued to bring us both closer to orgasm. " I'm gonna cum... unnngh... if you don't... want me to... ahhh.... cum inside you..." I couldn't hold out any longer. I tried to pull Ali into me, to plunge my cock into her, but she pulled back. My cock erupted as Ali dropped to her knees and caught my penis in her hand. Semen splashed on her breast as she tried aiming my cock into her mouth, before sucking it in between her lips. I spewed cum into her mouth, and she gulped, struggling to swallow the sudden deluge, as I filled her mouth with semen. Ali's fingers descended to the base of my penis, stroking me, urging every last drop of semen out of my balls as she moaned, her other hand between her legs, a finger deep inside her pussy. She pulled her mouth from my cock, gasping for breath, then, licked at my cock as semen trickled out of me. A minute later, spent, I sat down. Ali still knelt on the ground, fingers teasing her sex. She crawled toward me, up between my legs, her free hand clutching at my thigh, and then, she threw her head back, moaning as she pressed her hand against her mound, splitting her pussy lips as she plied pressure to her clit. Ali collapsed, her head landing against my thigh. As she gasped for breath, she leaned forward and kissed my rapidly softening manhood. She laid her head back against my thigh. "That was incredible," she said. "Did you...? Did you cum, too?" Ali nodded. "Not as hard as you did, though. And you almost did cum inside me." She stroked a finger along the rapidly decreasing length of my penis and kissed it, briefly pulling the head in between her lips and then letting me fall free from her mouth again. She giggled as she ran her fingers over my naked flesh. "I think it looks cute like this." "You like it?" She nodded. "If you're nice to me," she said, "I'll suck you off for real sometime." "Seriously?" She nodded. "I'll swallow your cum again and everything. You taste kind of sweet. Would you like that?" I nodded. Ali smiled again and dipped her head to lick at another oozing drop of semen. She looked down at her chest and looked up at me. She giggled again as she wiped the semen from her breast and licked her finger clean. "Would you do me?" she asked, pulling her finger from her mouth. I nodded again. Ali stood up and grabbed my hands, pulling me up to stand beside her. "I can't imagine Lisa not being happy now," she said. Ali stood there looking at me. "What?" "I swallowed your cum." I nodded. "I know. You sucking me like that felt fantastic." Ali nodded and smiled weakly. "What's wrong?" I asked. "Will you kiss me?" she asked. "Even though you came in my mouth and I swallowed you, will you still kiss me?" I pressed my lips against Ali's and pushed my tongue into her mouth. I tasted something new and different for the first time; my sperm on my sister's tongue. We were still kissing when the patio door slid open and Lisa stepped out, pencils and pad in hand. "Okay, you two." She closed the door behind her. "I see you solved the erection issue. If you keep kissing like that, though, it'll come back. Quickly." Lisa walked over to us, put her hands on our shoulders and repositioned us. "There," she said, stepping back to look at us. "Just like that." Lisa started to turn away, then stepped closer to us. She brought a hand up to Ali's chest. An extended finger pressed between Ali's tits, pushing her sternum as she wiped up an errant splash of semen. "You missed some," Lisa said, licking the thick, white liquid from her finger. She turned and walked over to her cart, arranging her materials to get started. Ali and I looked at each other, shocked. It wasn't even nine in the morning yet, and we were just getting started. to be continued... An Uncomfortable Situation Ch. 05 We took a few breaks along the way, but all told, Ali and I stood posed hip to hip with one another for more than three hours, all the while coping with the knowledge that Lisa had watched us having sex. Each time we stopped for a break, it was almost as though a spell had been broken, and suddenly able to relax, we grabbed for each other, collapsing into each other's arms. It was comforting and it was arousing, Ali's arms around me, and her breasts crushed against me. It didn't take long before I was hard again, and Ali didn't help matters any when she whispered into my ear. "I want you inside me so bad it hurts." By lunch time, it was warm enough that Ali and I had a light sheen of perspiration on our bodies and sweat had started to darken the cloth of Lisa's snug fitting top and her shorts. Lisa looked up from her easel, tugging on her shirt in an effort to fan herself, and told us to relax. Ali leaned into me, wrapping her arms around me, and as our wet, sticky bodies pressed against each other, Lisa smiled. "Come on inside," she said. "You can cool off a little, get something to drink and eat a quick snack." She pulled the patio door open and we followed her inside. I walked in last so I could watch the delightful curves of Ali's ass as she strode gently behind Lisa, and my cock pulsed with each beat of my heart. Lisa cracked open the fridge and pulled out a plate with some sliced fruit. "So, what are your schedules like for the next summer session?" Lisa leaned against the counter as Ali and I sipped water and took a few bites. "It starts Monday, right?" Ali and I nodded. "I have a class first thing in the morning," Ali said, "and another that gets out early in the afternoon." "Both of mine are early classes. I'm out by eleven." Lisa nodded. "Do you think you can keep coming over every day? I mean, when you need to study, I know that's got to take priority. I should be able to do enough prelim work to tide me over easily through the time you'd need for classes and studying." Ali and I looked at one another and nodded. "That shouldn't be a problem," Ali said. Lisa looked over at me. "You'd be able to come over right after class some days, wouldn't you? I could work on sketching you while we waited on Ali to get here." I looked over at Ali. The expression on her face implied to me that she didn't care what I answered. "Yeah. I can come over after I get out of class." "Great." Lisa took a drink of her water. "You two finish up here. I'm going to set up for the next sketch." We watched her refill her glass of water. "Lisa?" I looked over at Ali. The way she said Lisa's name, I knew she was about to ask the question that could very likely change the way the three of us got along. "What is it, Ali?" Ali looked over at me as though to gather courage for the cause. I watched her face flush as she rallied the nerve to pose her question. "Earlier... before you came outside..." "Yes." The way Lisa said it, Ali didn't need to finish asking the question. Ali took a deep breath. "What about yesterday afternoon?" A moment of brief silence as Lisa looked up at us and smiled. She'd seen us. "Yes." Lisa's eyes darted back and forth between Ali and me. "Yes. I saw you. Both times." Silence filled the room. Ali looked over at me. I'm pretty sure both our hearts skipped a beat. "You're not..." "Upset with you? Good heavens, no." Lisa took a step toward us shaking her head. "It's okay," she said, hugging Ali. "It's perfectly natural." "Really?" "Really," Lisa said. "Think about it. The two of you obviously love one another. That's easy to see. And you're clearly attracted to one another. I mean, it would be hard not to be... attracted to one another, that is, and... in a setting like this, it's usually feast or famine. The couple either has absolutely no chemistry, save maybe the man gets aroused just from being so close to the woman, or it's the opposite, the couple, like the two of you, has a lot of chemistry and... and nature takes its course. I think we'd have to sedate the two of you to keep you from arousing one another." "So you don't mind?" "No. Not at all. In fact," Lisa said, leaning against her counter, "I'm kind of flattered that you feel comfortable enough here to be so open. So many models have all these emotional layers that they hide behind; sometimes I have a hard time really seeing them, getting their essence. But not you two. "The raw energy and sensuality and... sexuality the two of you have just sort of... oozes. It's so... innocent, genuine. And pure. It gives me a lot to work with." Lisa pulled at her shirt, blowing down the front of it. Ali and I both looked at her. Lisa's nipples were clearly outlined against the fabric. "Do either of you mind if I pull this off? I'm still a little warm from outside." Ali and I both shook our heads and watched as Lisa pulled her shirt off. Her breasts were a little larger than Ali's, hanging a little heavier. Her nipples, areole included, were larger in diameter than Ali's, less puffy and more like gum drops when erect, like they were now, as compared to Ali's, which resembled pencil erasers when erect. "I consider myself really fortunate to have you both as models," she said. "And if you're not bothered at all by my watching, I can promise I won't be bothered by anything the two of you do together. All I ask is that you not compromise the pose I put you in. As long as you do that, if you so desire, you can pretend I'm not even here." Lisa smiled and walked across the floor to where she was set up to continue drawing. Ali followed her, and once again, I took advantage of the opportunity to watch the seductive sway and movement of my sister's ass. She sat down on the edge of the set where Lisa was going to pose us. It was made up to resemble a bed on a platform, and was draped with random lengths of beige cloth. "With any luck, I can capture that passion, lust and desire in my sketches," Lisa said. "Okay. Give me just a couple of minutes to finish setting things up and we can get going again." Ali waved a hand in front of her face. "I'm still hot from outside," Ali said. "You don't want it too cold in here," Lisa said. "Trust me, it would get uncomfortable fast." "I know," Ali replied. She turned to look at me. "I just can't stop sweating. It's..." She looked down and my eyes followed hers. Lines of perspiration were running down her chest, two of them zigzagging down her breasts to form rivulets at her nipples. I leaned forward and latched on to one of her nipples and sucked at it, pulling the sweat onto my tongue. "Tommy,..." Ali clutched at me. "Huh?" She shook her head. "Nothing. It's just... that feels really good." I smiled, leaned down and drew the other nipple in between my lips. Ali sighed and gripped my shoulders tight. "You're being mean." "How is this being mean?" I asked as I suckled her again. "Because I want you to make me cum. I need to cum. You do, too." My hand wandered down her body and slid in between her thighs. I slowly pressed into her with a finger, her sex warm and molten as she writhed against me. "Like this?" I asked. Ali shook her head with a ragged motion as she bit her lip and ground against my hand. "I want you... to make me cum." I looked over at Lisa. She stood partially exposed behind an easel, quietly observing us. One hand held a tray with pencils; the other stroked gently at her breast. I pressed my hand more firmly against Ali, and she moaned as she clutched my head to her breast, almost stumbling as she leaned against me, and all but falling onto the platform. Lisa's phone rang and we looked up startled. Lisa put down the tray and walked quickly to her phone, snatching it up, glancing quickly at it and then disappearing from view as she answered it. "Hello, Charles." She smiled as she brushed hair back from her face and leaned against the wall that now stood between her and her subjects. "Hey, Lees. I was just calling to see how things are going." She spun away from the wall and stuck her head around the corner slowly. Tommy's lips were once more latched onto Ali's breast as he suckled her. "Things are going really, really well," she said. A chuckle on the other end of the phone. "Can you clarify that for me?" "Remember I told you I didn't think them having sex in my studio was a one-time thing?" "Yeah." "Well, Tommy let me shave him this morning." "Both of them are bare?" "Completely smooth," Lisa said as she watched Tommy squeeze and suckle Ali's other breast, and she smiled as Ali arched her back with pleasure. "And after we finished, he was hard as a rock. We started outside this morning, and while I was getting everything ready, they all but fucked on my patio, and when he came, she swallowed him." "Wow." Lisa giggled. "You're hard, aren't you?" A heavy breath into the phone was affirmation enough for her. "And you're wet," the voice said. "I am," Lisa said, leaning back against the wall again and pressing a hand in between her thighs. "And I'm topless." "Getting naked with the models?" "A little at a time." "Ali's not jealous?" "She doesn't appear to be," Lisa replied. "And I'm going to get some time alone with Tommy. He agreed to pose for me by himself." "To draw him or..." "Yes. And maybe that, too," she said as she leaned around the corner again. I swirled my tongue around Ali's nipple and slid my finger in and out of her pussy as she pulled my hand tighter against her sex and writhed against me. "I want you inside me," she said, reaching for my cock. "Lisa'll be back as soon as she gets off the phone..." "I don't care," Ali said, spreading her legs wider and reaching for me. "I don't care if she sees us or not." My cock was throbbing, and my feeble argument was the last of my resistance as I climbed over her outstretched limb and hovered over her, my swollen penis aimed in between her legs. "Ohgawd, yesss..." she sighed as the head of my cock dipped into her the opening of her molten pussy, and she grabbed at my ass, pulling me into her with both hands as she wrapped her legs around me. "Fuck me..." "I'm fucking you, Sis," I said as I buried my cock in her pussy. "Lees? Are you still there?" Lisa stood there, one hand holding the phone to her ear while the other pressed against her pussy. And there'd been no mistaking what she'd heard. "Sis." She swallowed hard as she watched Tommy begin to thrust in and out of Ali's sodden cunt, and she felt her own chest beginning to heave and her heart beginning to pound as Ali arched her back, responding to her... what was Tommy to her? Was he boyfriend or brother? Whatever their relationship, they were not strangers to each other's bodies. "Lees?" Lisa bit her lip and slid a finger inside her own pussy as she hid behind the wall again. She needed a penis, wanted a penis inside her desperately. She closed her eyes and imagined for a moment that she was on her back with Tommy between her thighs; that he was fucking her, that his hairless balls were slapping against her. "Yesss,... I'm still here," she said. "Ohmigod, Lees. Are you masturbating?" "Uh-huh. And if you could see what I see, you would be, too," she said. They both knew that if Charles were here with her, neither of them would be masturbating; she'd have her hands pressed against the wall and he'd be behind her, his cock thrusting in and out of her sopping cunt. "Are they...?" Lisa smiled; she could hear the arousal in his voice. "They're fucking." She stepped around the corner again. Ali's arms were wrapped around his neck; his face was buried against the side of her head, and she had her legs pulled up, her ankles locked around his back, and with each movement, Lisa could just make out his glistening penis as he paused before sliding it back into her. "Ohhh... ohhh, Lees... that's awesome..." Lisa smiled; she could almost hear him unzipping his pants; she could almost see him pulling out his cock and beginning to stroke it. "Do they know you're watching?" "I don't think so," she said, breathing in deep as her finger stroked in and out of her swollen sex again. "But I don't think they care, either." "Ohhh... ohhh... Tommy... ohhh... Tommy, I'm cumming..." Ali dug her fingers into my back as she clutched at me and I felt a sudden clamping pressure on the head of my cock. "Ali..." "Cum with me... ohgawd... cum with me, Tommy... cum in my pussy..." It started at the head of my cock; an increasingly familiar sensation; and then my balls tightened up. And then I couldn't hold back. "Unhh..." I grunted as I thrust into her, my cock erupting into my sister's pussy, and then I was thrusting short and ragged, my body driven by instinct as I spewed semen into her womb, desperate to empty myself into her. I collapsed on top of her, both of us panting, sweating, our hearts racing. "Ohmigod, that was incredible," Lisa said, clenching her thighs together against her hand. Silence on the other end of the phone connection was punctuated only by the sound of heavy breathing. "This is what, the third time you've watched them? And still,...?" "Charles." Lisa grabbed up her shorts and walked back to her bedroom. "You know as well as I do that the most erotic thing to see is a couple having sex. And, yes, still. I'm telling you, with this pair, three times or thirty, it won't make a difference. They're both beautiful individually, but together... you need to see them for yourself. The drawings just don't do them justice." Charles sighed into the phone. Time was one thing he just didn't have a lot of. "It'll be a couple of weeks or so before I can come down," he said. "I'll call and let you know when I can get away." "Okay," she said as she peered into the mirror. Her nipples were swollen and hard; her pussy lips were likewise swollen, red and glistening. She was so close. "Be good, kid." "You, too," she said, and they hung up. Lisa dropped the phone on the edge of her dresser and flopped down onto her bed, one hand grabbing for her breast, the other going between her legs again. It's my turn, she thought to herself, and she quickly began taking herself to the orgasm she so desperately wanted. Ali still clung to me, and our bodies were beginning to stick together. I pushed up and looked down at her, and she slowly allowed her ankles to fall from my back. She slowly turned her head to the side, looking to where we'd last seen Lisa. "Where did she go to?" "I don't have any idea," I replied as I rolled to the side. Ali shifted on the bed and rolled toward me, and a moment later, our legs were intertwined, her head laid against my chest, and my cock, still oozing, trapped between us, painting her belly. "I love you, Tommy," she said. "I love you, too, Sis," I replied, whispering as I kissed the top of her head. Fifteen minutes later, Lisa peered into the studio and saw them laying still. She'd opted to put on one of Charles' oversized shirts that he'd left behind the last time he'd visited. She hadn't washed it; she liked the way it smelled, and now, with the two bottom buttons fastened, it provided just a minimum of coverage while allowing her to feel connected and sexy all at the same time. She walked slowly across the floor, smiling at the delightful, feminine curves of Ali's body tangled up with Tommy. She stepped up onto the platform, looking down at them; they didn't move. They were asleep. Lisa smiled and immediately stepped down, grabbed up a handful of pencils and a sketch pad. This was not how she liked to work, but sometimes you had to go with what you had to work with. She stepped back onto the platform, laid the pencils out in front of her and balanced the sketchbook against her hip. Perfect, she thought to herself. So natural, so... She squinted, bent forward to look closer and her mouth dropped open. Ohmigod, she thought as she watched semen trickle slowly from between Ali's legs. Now if she could only capture the essence on paper... We woke up about an hour later, with Lisa still standing over us, steadily drawing. As much as Ali had pretended she didn't care if Lisa saw us or not, she seemed really embarrassed about being such a mess. Lisa excused herself and allowed us to clean up, and when we came back, she told us she thought we'd done enough for the day. Ali and I got dressed, and still clad only in her loose fitting shirt, Lisa walked us to the door. "Same time tomorrow?" she asked. Ali nodded, reaching for my hand as Lisa reached for the door handle. "Ali, I know you were a little uncomfortable when you woke up. A little embarrassed, maybe?" Ali nodded and looked at me then back at Lisa. "The position the two of you were in," Lisa said, "was... it wasn't the easiest to draw because of the angles, but I couldn't have posed you better if I'd wanted to. "I was wondering..." She let her words trail off, gauging our reaction. "I was wondering if you might be willing to let me draw you... while you're... while you're doing it." Ali gasped and she gripped my hand tighter. "You want to draw us having sex?" I asked. Lisa's eyes darted between us and she nodded. "The two of you are so natural together," she said. "There are a lot of different poses we could use, many of them more artistic than erotic, and I can guarantee no one who ever sees them will recognize you unless you want me to draw them so they can." "You can sell drawings like that?" Ali asked and Lisa nodded. "I have a client, actually my agent has a number of contacts who have a certain taste in nude portraits," she said. "Some of them are women, and they have an affinity for well sculpted male nudes, especially certain parts of the male body. And others are men, or couples who like well formed women and couples. And some of the clients will pay a good deal of money for what they like to refer to as erotic portraits." "How much money?" I asked. Lisa smiled. "Let's just say that depending on the amount of work you're willing to do, you could find yourselves well on the way to college expenses being covered before the summer's over with." "You're kidding." Ali's mouth hung open and I thought her eyes were going to pop out of her head. Lisa shook her head. "Go home and think about it," she said, turning the door handle. "We can try a pose or two tomorrow and you can let me know what you decide." "Okay." Ali looked like she was lost in a fog and I held her hand as we walked outside. She laced her fingers in mine and held my hand all the way home. Back at our apartment, Ali began stripping as soon as I'd closed the door. Our clothes became one pile there in the entry way, and when we were both naked, she took me by the hand and led me to the bathroom. A few minutes later, I was sitting behind her in the tub and she was talking me through washing her hair. I'd never done that before; she said mom had told her stories about dad washing her hair when they'd first gotten married. After I'd rinsed Ali's hair, she leaned back against me, pulling my hands to her breasts and sighing. We finally let the water drain out, took a shower and decided to get something to eat. I watched Ali slip on a pair of pink bikini panties, a short pair of denim shorts and a tank top. She turned to face me as she settled the top against her upper body, and there was no doubt she was braless beneath it. Her pert little breasts would be sure to draw every eye. "Is this okay?" "As long as you don't mind me and everyone else staring." She grabbed my hand up in hers. "Does that mean you'll want to fuck me again when we get home?" An Uncomfortable Situation Ch. 05 It did. And I did. Want to fuck her when we got home, I mean. I was already hard when we came back through the door, and I reached for her as soon as the door was closed. This time, I was undressing her, my fingers pressing against her skin as I slid the tank over her head, my lips closing on her nipples and making her gasp, and then I slid my hands into her panties, squeezing her ass as I finished stripping her naked. Ali squealed and ran for the bed; I ran after her, my cock bouncing up and down, and I caught her, one hand on her foot, the other on her hip, and then I was pulling her back to me, my cock aimed above her ass as she looked back at me. Ali smiled and leaned forward onto her elbows as she wiggled her ass at me. "Feel how wet I already am," she said, and as I looked down, I could see her finger, wet with her juices, sliding between her swollen pussy lips. My finger met her finger, and a moment later, my finger was inside her and she was thrusting back at me. "I want you inside me," she said. "Fuck me just like this." I pushed my cock down between her ass cheeks and though I'd been inside her only a few hours before, it was like I hadn't been inside her at all. I was consumed by sudden onset of euphoria, and we both groaned as I penetrated her with my penis. It didn't take long until she was clenching at the sheets and I was grasping her hips, my pelvis bumping against her ass as I came inside her again, filling her with my seed. I collapsed onto the bed, breathless, and we lay there together getting our breath back. After a few minutes, Ali got up and went to the bathroom. When she returned, she had a warm washcloth. She wiped me down and then tossed it into the bathroom before crawling back into bed with me. I wrapped my arms around her as she pulled the sheet up over us and sighed. "So," she said, planting her chin in my chest. "Wanna do it? Wanna let her draw us having sex?" It was a good question to sleep on. Lisa sat the glass of wine down on the table beside the bed, adjust the pillows and leaned back against them, digging her feet into the tangled sheets. She gasped as her toes slid across a cool, still damp spot where semen had oozed from Ali earlier, and she shifted on the bed, rolling around until she was inches from it; she'd change the sheets later, but right now, she had more important things on her mind. She took a sip of her wine, sat the glass down again and looked at the sketchwork she'd set up across from her and sighed as she touched herself and let her imagination wander. They were so pure, innocent and sensual, those two. She leaned over, laid her head on the mattress and breathed in. She smiled and rolled onto her back, sliding a hand down between her legs. Semen had a distinct smell to it; clean, almost, and mixed with pussy juice, it took on a whole new character. It made her horny. Lisa reached for her phone. She dialed the number as she slowly traced her finger up and down the outer edges of her pussy, teasing herself with a feathery touch. "Hey, there, girlfriend. How are you?" Lisa smiled; Rita was always so upbeat when she answered the phone. "I'm doing really, really well," Lisa replied. "How about you?" "I'm doing pretty well myself. I understand you have a pair of very attractive models you're working with these days?" Lisa giggled. "Did Charles tell you about them?" "You might say that. I know this afternoon when he got off the phone with you, he was very excited. I'll let you use your imagination. Would you like me to get him for you?" "If you don't mind." "As long as you don't mind me listening in, too." Lisa felt a tingle surge through her body. Rita was one of her dearest friends, and it still amazed her to no end that she wasn't jealous of the relationship she had with Charles. "No, I don't mind at all, in fact, I'd like that." "Fantastic; I'll get him." The phone went silent, and a second later, Lisa could hear Rita call his name. A few more seconds passed while Lisa played with herself and she waited for Charles to come to the phone. "Hey, sweetheart! I wasn't sure you were going to call back or not." "Mmmm..." Lisa slid a finger in between her sodden folds. "They said they'll think about it." "They said they'll think about it," Charles said, not so much parroting her comment as he was passing it along to his wife. "Will they let us watch?" Lisa heard Rita's voice and she smiled. She could well imagine Rita naked, at least topless, her ample breasts swaying as she knelt in front of her husband, either pulling his cock out or beginning to stroke and suck it. "I don't know," Lisa replied, not waiting for Charles to repeat the question. "Once you meet them and they get to know you, I think they'll probably let you watch them pose for a normal setting. As for them being comfortable letting you watch them have sex, that I don't know." Charles relayed her answer and then asked another question. "So, what next?" "I told them I'd have them do a couple of simple poses to see if they like it. I should know by the end of the week." "Oh, baby..." Lisa smiled and slid her finger deeper inside her pussy again, and as she listened to Charles lose himself to pleasure, she imagined sitting next to him, leaning over, kissing Rita and opening her mouth as the two of them shared his cock. "Is she naked?" Lisa asked. "Completely," Charles replied, his voice strained and airy. "So am I. And I'm watching her suck the head of my cock in between her ruby red lips." Lisa smiled and sighed. Rita didn't tan all that well. She wasn't extremely fair skinned, she just didn't tan; it wasn't in her genes. She made up for it, though; she kept her dark brunette hair cut short, and of late, her stock and trade was bright red lipstick with matching nail polish. Naked, her nipple ring on display, the mere sight of her was enough to make Charles hard and Lisa wet. And Rita knew it. "What about you, sweetheart? You don't sound that distracted. Are you relaxing?" "I'm laying on the bed where they fucked earlier this afternoon," she said. "Are you now?" "Uh-huh." Lisa kicked at the sheets and swung her body around until her face was inches away from the wet spot on the sheet. "After he came inside her, they fell asleep, and some of his cum oozed out of her onto the bed." "I want to watch the two of them fuck." "I know you do," Lisa said. "Your wife will want to see it, too. The girl is so cute and adorable." "Tell me about her again." Lisa smiled. She could imagine Charles' swollen erection glistening with saliva as Rita bobbed up and down on it. "She's got these sweet, cute, very suckable nipples; they get hard like little buds and she gasps when you suck them. And her pussy is completely bare." "Yesss... ohhh, yesss... ahhh... ahhh..." The phone went silent save background noise, and all Lisa could hear was the sound of Charles gasping for air and Rita laughing, and then she heard the phone being raised to an ear again. "Lisa?" "Did you make him pass out?" "Pass out, no. He did lose all ability to speak, though, but that's normal for when he cums in my mouth and I swallow him." "I'm jealous." Lisa could imagine Charles laid out on the sofa or the bed, Rita still kneeling in front of him, kissing his bare thigh and stroking his still throbbing penis as she licked her lips, savoring the taste of his semen. "You're jealous? Sweetheart, you've got a fresh young cock you're seeing every day. Don't tell me you haven't..." "Not yet." "You're kidding!" Lisa sighed. "No. Not yet. He's going to let me draw him solo, though. I'm sure I'll have a chance to do something then." Rita sighed into the phone. "You'll have to do me a sketch. Maybe while I'm there." Lisa smiled. "We might could arrange that." "I'll look forward to it." "There's one more thing," Lisa said. "Really?" "Yes. And Charles will want to hear this." "Charlie, darling, Lisa has something she wants you to hear." Lisa listened as Charles groaned and sat up, reaching for the phone. "Okay, Lees," Rita said. "We're both listening." "I heard him call her 'Sis' three separate times today. I think they might be brother and sister." There was silence followed by an almost silent gasp on the other end of the phone, and then Rita giggled. "You're making him get hard again, Lees." "I thought I would." An Uncomfortable Situation Ch. 06 Ali looked up with the hottest "fuck me" eyes I'd ever seen, and then she stuck out her tongue and licked the head of my penis, which was wet with a mix of my pre-cum and her saliva. I watched as she smiled and opened her mouth, just enough to take the head of my cock in between her lips. She grabbed my hip and pulled me with her as she rolled onto her side and spread her legs, raising one of them so I could watch as she fingered herself while sucking me. I felt my balls beginning to tighten, felt the familiar tingle sweep through me as I headed toward orgasm... And woke up. Ali licked her hand, wrapped it around my swollen penis, and began pumping me again. "Ali,..." I reached for her, sliding a hand under her, my fingers curling against her back as she pushed me steadily toward the brink. "I'm gonna cum..." My cock erupted, spewing semen all the way up my chest, almost to my chin before follow-on bursts coated my stomach, pooling as she drained me. "Wow," she said, giggling. "You came a lot." "Uh-huh." That was the best I could do. I was suddenly out of breath, and I couldn't for the life of me put two words together. Ali dipped her head down and began lapping at me, scooping my cum up onto her tongue like it was drips from an ice cream cone, and when she'd licked me clean, she bent at the waist, swallowing my still throbbing phallus and sucking it to get every last drop of cum. I closed my eyes and moaned; man, did that feel good. Ali pulled her lips from my suddenly deflated dick and rubbed my belly with the flat of her hand. "There. Now maybe you won't be hard as a rock when you get to Lisa's." We were a week and a half into the second summer session and I'd spent more time naked at Lisa's than we were used to. My schedule allowed me more free time than did Ali's, and Lisa had been able to start satisfying her urge to draw me naked. Maybe I should be more specific. She'd been able to satisfy her urge to draw my penis. I'd never been with a lot of girls, but I'd definitely never been naked around one so much, not even Ali, where she was so close I could smell her; so close I could feel her breath; so close my cock seemed to gravitate towards her. And she never touched me. Each day, by the time Ali arrived, I was so hard my balls were beginning to hurt. Today would be the day Lisa put the final touches on a sketch we'd been working on since Monday. It faded in about mid-thigh and back out again just below my ribs. The mid-section, though, was solid with detail. After Ali arrived, we'd continue with a pair of sketches that Lisa hadn't named yet. One featured Ali on her knees in front of me as I thrust into her mouth. The other had me on my knees with my face buried between Ali's spread thighs. Lisa didn't have a name for them yet, but Ali and I called them the "Head" sketches. The first day Lisa spent 'doing a study in charcoal' of my cock, I was throbbing and ready to burst when Ali finally showed up and took off her clothes. In a moment of inspiration, Lisa coached Ali as she kissed, licked and sucked on me. She coached me, too. "Fuck her mouth, Tommy. Like this." By that point, Lisa was naked, too, and leaning against the wall beside me. I watched as she reached down and grabbed the head of the person she imagined was going down on her. The rest was almost instinct. Ali clutched at my ass as my fingers wound into her hair and I thrust my raging member in between her lips and across her tongue. And she sucked me. And I came. Hard. I swear it felt like someone reached inside me, grabbed my balls and squeezed, trying to milk the cum out of me. And suddenly, out of breath and weak in the knees, I understood why Lisa had told me to lean up against the wall. We'd spent most of the week replicating that scene, alternating between Ali being on her knees in front of me and me being on my knees in front of her. A lesson quickly learned was that Ali liked pulling me against her as much as I liked her doing it, but she couldn't take much of me going down on her while she was standing. Lisa quickly adapted, and to be honest, I couldn't tell you which I liked better, the sketch with Ali standing or the one where she sat with her legs spread holding my head against her. I enjoyed going down on Ali when she was sitting with her legs spread, thighs draped over my shoulders. Now, though, it was Thursday. Lisa and I had a solid two hours alone before Ali got out of class. My cock twitched. Two hours of Lisa studying and drawing my swollen member. And then Ali would make me cum. Again. The morning flew by and soon I was knocking on Lisa's door. "Just a minute." I could just hear her muffled voice through the door. I heard some shuffling behind the door, and then it cracked open. "Come on in," Lisa said, peeking her head around just enough for me to see her, and as soon as she closed the door behind her, I could see why she was trying to stay hidden. She was all but naked, fastening the lower buttons on an oversized man's shirt, closing it just enough to cover herself. "Time got away from me," she said, her breasts swaying beneath the cloth as she rolled the sleeves up and stepped off toward the kitchen. "Help yourself to anything in the fridge. Give me about five minutes and I'll be ready to go." I followed her past a table she had set up and looked down at the sketches she was working on. One sat behind it on the floor, resting against the wall, ready for framing. "I sold that one," Lisa said, walking up behind me. "You sold it?" I was a little stunned, and Lisa almost knocked me over when she slid a hand inside my arm and brushed against me. It was one of the more intimate portraits of Ali that she'd done. Ali was laying back, her legs spread, one arm stretched overhead, the other by her side, the fingers of her hand laying just inside her thigh, brushing against her pussy. Her breasts, gentle mounds atop her chest, were crowned by puffed, erect nipples. And the look on her face was pure euphoric ecstasy. Most shocking, though, was the fact that I could recognize it as being her. If I'd stumbled across the portrait anywhere else, with the body covered and only the face exposed, I'd still know it to be my sister. And soon, this image of her nude and enraptured would be hanging on someone's wall. My cock began to swell, pressing out against my shorts. "Yeah. I sent digitals of some of the sketches to my agent and he's been getting a lot of response to them. In fact, I think I can sell two or three more just like this one." I swallowed hard, my cock swollen and erect, throbbing at the thought that my sister's body would be on display for complete strangers. "The same buyer is supposed to let him know later this week about a couple of the sketches of you and Ali together." I started taking my clothes off. My cock swayed in front of me, and as I walked back toward Lisa's work area, I stopped to look at the sketch of Ali again. My cock surged to full hardness again. I couldn't help myself; without thinking about it, I wrapped my fingers around the swollen shaft of my penis and began to stroke up and down. "You can't take your eyes off of her, can you?" I looked away from the picture as Lisa stood next to me. I looked back at the picture and shook my head. "She's really beautiful," Lisa said. I nodded and my heart skipped a beat as Lisa placed her hand on my ass and leaned in against me. l looked over at her as her other hand reached for me, her fingers almost covering mine as she touched the throbbing head of my penis. "Don't waste this." Her fingers slid awkwardly over mine, trailing down until her fingertips were cradling the bare skin covering my balls. And then they were moving up again, grabbing at my fingers, peeling them away, freeing my phallus. Her hand replaced mine, flat against me as she pressed my cock in against my body, and rubbed the shaft with the heel of her hand. That was a whole new feeling; there was no urgency with it, more like a deep, distant longing. Teasing, if you will. With a far off promise of anticipated satisfaction. "Because as much as I want to watch you make yourself cum, I don't want you to do it just yet." Her hand moved down, the heel pressing in against the base of my erection as her fingers cupped at my balls. "I want to draw you just like this," she said, looking down as she pulled her hand away from my cock. "And I'm sure Ali won't want it to go to waste, either." I nodded slowly; Lisa grabbed at my ass, laid her other hand against my belly and leaned up and kissed me on the cheek. "Ready?" Lisa asked. I nodded and she smiled. "You know what to do," she said. I nodded again and headed for the platform. Same mattress, same pillows, same pose. Lisa sat down beside me reaching behind and around me as she helped position me, and a moment later, she leaned back. "There. Just like that." She rolled off the bed and strolled over to her easel as I reclined back against a stack of pillows on the bed, my cock swollen and lying against my thigh. I was eager to see just how enticing a view I was going to have as she sketched me. She'd done nothing more to cover herself, and in fact, had unbuttoned her shirt most of the way. It had slipped from her shoulder as she adjusted my body for the pose she wanted; I'd gotten a good close up view of her wonderfully ripe breast. And she knew it. And then she sat down to begin drawing. She sat just out of reach, pad across her thighs, pencils arrayed out beside her, and as she settled herself to get started, she spread her legs slightly, flashing me a scant view of her pussy. I think she made eye contact with me, brief though it was, four times in the next two and a half hours, focusing most intently on sketching my genitals, and when she got up to answer a phone call, I took a peek at her sketch book. The detail was impressive. And so was the scale. Guys spend a lot of time posturing and talking trash about how big their cocks are. In the sketch, you could almost say I was almost larger than life. Lisa was a tease. The shirt just covered her, leaving my imagination to run rampant as she smiled and sketched, and as my mind raced, the time did, too. All too soon, it seemed, we heard the front door open and close. Lisa looked at the clock and laid down her pencil and pad as she slid off the mattress. "And that should be your..." She stopped mid-sentence and looked at me. "...girlfriend. That should be Ali." My heart leapt into my throat as she disappeared from the room. Sister. That's what she'd almost said, wasn't it? I heard them before I saw them. Giggling followed by outright laughter as Lisa and Ali walked back into the room. Ali's eyes locked on my erection and she smiled as she tugged at her tank top. "Is that for me?" I nodded and smiled. "Nobody else." Lisa stood back and both of us watched as Ali wiggled out of her skirt and panties. "I've been thinking about you all day," Ali said. "I couldn't get you out of my head." She crawled onto the mattress and reached for me; I grabbed at her knees and clutched at her as she straddled me and wrapped her fingers around my cock. "You're really hard," she said. "Just like this morning." Lisa sat down on the edge of the mattress and watched Ali slide her hand up and down my cock. "Just like this morning?" Ali smiled and nodded a she gently stroked me. "I made him come when we woke up this morning." Lisa reached for her pad and pencil. "Ready to get right to it, or...?" "Wanna draw us having sex?" Ali locked eyes with me as Lisa froze, her eyes darting between us. "You want me to..." Ali wriggled forward, slowly positioning her pussy against the length of my swollen shaft. "You said you wanted to draw us having sex," Ali said. "And I know we need to work on the other sketches, but I'm really, really horny." I rolled my hips, pressing myself up against my sister's pussy as she ground against me. Ali leaned forward and kissed me as she held my cock pressed against her. "I really, really want you inside me." Lisa giggled as she pushed away from the bed. "As hard as he is, and as long as he's been hard, I don't know how long he'll last inside you, the way you're rubbing against him." Ali pushed up and flexed herself against me as I pressed into her again. She reached down and ran her thumb over the swollen, angry head of my penis, smearing the pre-cum oozing out around the tip. "You could draw us like this, couldn't you?" She fell forward again, knees drawn up against her body as she crushed her chest against mine and clung to me. "I could hold off making him come for a bit...," she said. "I wouldn't bet on it." That was all I could manage as I grabbed at my sister's ass and pulled at her. I wanted inside her as badly as she wanted me there. Ali giggled and wriggled forward against me. "And I could lay here with him inside me afterwards for a while." Lisa looked over at us and cocked her head. "You don't think you'd cramp up?" Ali pushed up and looked at me, her mouth hanging open slightly as she licked her lips. She smiled and looked back toward Lisa. "If I do, then I'll just roll off of him and the two of you will have to give me a massage." Lisa giggled and shook her head. "Yeah, and I know what that'll lead to." She walked back over to the platform, threw a pillow down beside the mattress, and sat on it as she picked up her pencils. "Try and keep the panting and moaning to a dull roar," she said. "You're not the only ones that want to fuck." Ali and I looked at Lisa, then at each other. She pushed up and ground against me as she looked over at Lisa again. "Jealous?" Ali asked. Lisa refused to look up from her sketch book, smiled and nodded gently. "Envious, really." Ali smiled and rubbed against me as she leaned forward and put her lips near my ear. "Good." I grabbed at Ali. My fingers dug into her hips and her ass as I pulled her to me. She resisted only a little; only enough to finish rubbing against me enough to satisfy her for the moment. "You want inside me, don't you?" she asked. Her mouth hung open, and she panted and leered at me as I nodded. "Yeah." Her pussy was so wet. So warm. So slippery. So... She gasped and I moaned as I penetrated her. A knock on the door punctuated Ali's long, slow moan as she impaled herself on my erection. She rolled her hips against me as she pushed up, eyes clenched closed and her face contorted as she moved against me. It felt like heaven. I thrust up at her as she wriggled against me, and we all but forgot Lisa was sitting there beside us. "Hold up for a minute," she said. "I'm gonna go see who's at the door." Lisa slid off the bed; Ali's response was to lean forward and clutch at the bed as she ground against me. "Gawd you feel good. You're sooo hard." I grunted as I tried to thrust deeper into her, grinding against her and making both of us gasp. "Yeah... oh, yeah... like that..." Ali leaned forward and kissed me, drawing my lip in between hers as she kissed me, then laying against me for a moment, allowing me to thrust into her. "I've wanted you inside me since this morning," she said. "Then why didn't you...?" "Shhh..." Ali laid her head beside mine, clenched her thighs against me and kissed me softly as I thrust awkwardly into her. I wanted to come so bad it almost hurt. "Ohhh... yes... like that," she said. "That feels... ohgod... you're almost there, aren't you?" I grunted. "Uh-huh." Ali moaned as she pushed herself up, almost pulling off of my cock. She gasped. "You're gonna come, too," I said. She nodded, panting, her mouth hanging open. I grabbed her hips and pulled her back down on me as I thrust up into her. "Ohgod..." Ali pushed against me, rising on my cock. I pulled her to me again, thrusting into her, grinding her against me. "Tommy..." Neither of us heard Lisa, Charles and Rita walk in. "Tommy, I'm gonna... come... ohgod... Tommy..." Ali's fingers dug into me as she began to climax, and suddenly I was coming with her. I thrust into Ali as she moaned and collapsed against me, thighs clenched tight, breath rapid, and my cock spewed into her. Finally spent, Ali slid her arms around my neck, kissed me softly and thrust her legs out behind her. I still clutched at her, my fingers buried in the flesh of her behind as I thrust weakly into her, still trying to expel semen into her pussy. "Enough," she said. "Enough. I can't take anymore." I wrapped my arms around Ali and held her, finding her lips with mine. "That was fantastic." Ali gasped and her eyes flew open as she rolled to the side and clung to me. Lisa, standing at the edge of the bed, sat down beside us and pulled the sheet up over us as we stared at the people who'd just witnessed the completion of our coming together. "Ali, Tommy," Lisa said, "this is my agent, Charles, and his wife Rita." Lisa leaned towards us and gently rubbed at Ali's back as Rita stood off to the side holding hands with her husband, her mouth agape. Her brunette hair was bobbed short; smart and sassy. A short skirt with a coordinated blouse covered enough of her to be modest, but hugged her snuggly enough to reveal that she was curvy and busty enough to turn heads from a distance. Charles was smartly dressed in khaki slacks and a button-down shirt that was so heavily starched it still had creases in it. They were an attractive couple. Rita turned to her husband and unhesitatingly laid a hand against the obvious swell of his erection as she raised up on her totes and kissed him. "Wasn't that the most wonderful thing you've ever seen?" she asked. She continued to gaze into his eyes and made no attempt to hide the fact she was rubbing his cock as he slid his arm around her and cupped her breast as he kissed her back. "It was amazing. Everything Lisa's told me about the two of you is true," he said. "I can see why she's so enamored with you." Rita pulled away from him and all but threw herself at the bed, bouncing on the edge as Lisa scooted back out of the way. "I'm so sorry we startled you," she said. She reached for Ali and stroked her hair. "You're so beautiful," she said. "You both are. Can I kiss you? I'm very affectionate; I like to hug and kiss. Ask Lisa." Lisa smiled and nodded, then Ali nodded. Rita leaned over me to kiss Ali, and as she gently pressed her lips to first my sister's cheek, and then my sister's lips, she slid her hand up against me, brushed against me with her breasts and I caught the scent of her perfume in the air. "I have to kiss you, too," she said. And she did, pressing her lips firmly and evenly against mine, just a hint of tongue, enough to introduce herself without being too forward, and then she sat back, her fingers gently traveling along my sister's bare arm. "Can I pull the sheet back?" she asked. "Would that be okay? I just want to look at you." Ali and I both nodded, still half out of breath, and Rita slowly tugged at the sheet, baring us to her eyes. "Can I touch you?" she asked. The question was for Ali. "Yes," she replied. Almost immediately, Rita's fingers were brushing her skin, starting just above her waist and quickly, yet gently moving down past her hip to her buttock. "Sweetheart, you are beautiful. Both of you are." She stood and turned to Lisa. "I think this would be a great pose, just like this. Don't you?" Lisa nodded. "Right now, though," she said, "we have business to discuss, and since that'll eat up most of the rest of the afternoon..." An Uncomfortable Situation Ch. 06 "You need us to leave," Ali said. "I'm not trying to rush you out," Lisa said. "I want you to stay, and you can stay, to rest if you want. It's just, I've got to spread some things out for Charles to look at so he can make some decisions and phone calls about some pieces that are ready to go." "Some of the pictures of us," I said. "Of the two of you," Lisa replied. "Of Ali by herself. Eventually, some of you by yourself." "We can take some time to get to know one another better tomorrow," Charles said. "I'm just kind of trapped by some time constraints at the moment." Ali nodded and shifted against me as Lisa grabbed first Rita and then Charles by the arm. "Let's give them some privacy so they can get dressed," Lisa said. Ali snuggled against me as they left the room, and then she tilted her head up to me. "People we don't even know just watched us fuck." "They walked in on us..." "While we were coming, Tommy. They watched while we were coming together." I nodded and hugged her closer to me; Ali hugged me back and breathed against me. "We should probably get dressed," she said. "Yeah." We slowly untangled ourselves, cleaned up and got dressed. Lisa heard us moving toward the door and reappeared, no more dressed than she'd been. Rita, close behind her, had kicked off her shoes and looked a little disheveled. Charles was nowhere to be seen. "I don't really want you guys to run off," she said, "but Rita and Charles want to look at some of the work we've been doing and we need to discuss some business things." Ali and I nodded. "Come back tomorrow?" Lisa asked. "Right after lunch?" "We can do that," I replied. "Awesome." Rita stepped forward and past Lisa, grabbing both of us by the arm. "It was wonderful meeting the both of you," she said, "and I look forward to seeing both of you again tomorrow." There was a glimmer in her eye that told me there was more than a mere artistic interest on her part. Lisa closed the door behind us and Ali dug her fingers into my hand. "What are we going to do, Tommy?" she asked. "What do you mean? We come back and we pose, like we've been doing for the last few weeks." "Yeah," she replied. "Posing for Lisa. Not in front of a lot of other people. Not in front of another man." "By the time we get here tomorrow, I don't think either of us will have any secrets they won't already know," I said. "They're going to see every sketch she's done and they'll simply be seeing in the flesh what they've seen on paper." "'In the flesh,'" she echoed. "Interesting choice of words." I stopped walking and tugged Ali back to me. "I like seeing you in the flesh," I said. "You know..." "Naked," I said. "You've got a really cute butt." Ali giggled and leaned into me, burying her face in my shoulder as she kissed my neck. "You've got a pretty cute butt yourself," she said, giggling again. "Your boobs are a lot cuter than mine." Ali giggled again and goosed me as she leaned back. "You don't have boobs," she said. She licked her lips and smiled. "You think my boobs are cute?" I nodded. Ali tilted her head as she leaned in to whisper in my ear. "Wanna convince me when we get home?" I smiled and nodded. "Hey. Did you dump your bookbag at home before you came over, or...?" Ali shook her head. "No, I brought it with me. I dropped it just outside the drawing area right before I started getting undressed," she said. "I've gotta go back and get it; I've got homework I've gotta do. Wait for me; I'll be right back." I nodded and watched Ali bound back up the path towards Lisa's apartment. Ali knocked lightly on the front door of Lisa's apartment, then tried the knob. Lisa had always told them they could feel free to walk in if the door was unlocked. Lisa had not locked it behind them, and the door yielded, swinging open as she pushed on it. Ali stepped through the door and closed it behind her as softly as she could; she'd just as soon get in and out again without them knowing she'd come back if possible. "You forgot your backpack, didn't you?" Ali gasped and spun around as Rita strolled towards her, and if Ali had thought Rita looked a bit disheveled a few minutes earlier, she wasn't sure what she thought now. No longer wearing her skirt, Rita was now clad only in her blouse, which was completely unbuttoned, stockings that climbed up the length of her legs and seemed almost glued in place and a pair of thin, filmy panties. Her breasts, heavy and full, swung pendulously as she strolled toward Ali. Ali nodded and swallowed hard as Rita grabbed her hand. "I think I saw it over here," she said. Ali allowed Rita to lead her to her backpack. "I really should be going," Ali said. "Okay," Rita said, nodding. She kissed Ali on the cheek. "You and Tommy are really sweet together," she said. "So far, I've only seen a few of the pictures you're in together, and they're all absolutely delicious." Ali blushed and smiled. "Thank you." "You're welcome," Rita said. "We'll see you tomorrow, then?" Ali nodded and began walking toward the door as Rita smiled and turned away from her. Curiosity got the better of her, and Ali turned to look back, catching her breath as Rita rolled her shoulders and let her blouse fall away. "So," Rita said, as she disappeared from view, "you have been hungry for his cock, haven't you?" What? Ali sat her backpack down gently, slipped off her shoes, padded softly to the edge of the doorway and peered into the drawing room. Charles stood at the edge of the bed, naked, his swollen cock jutting in front of him. Lisa was also naked, and kneeling in front of him, one hand on his thigh, the other between his legs, stroking his balls. Rita stepped up onto the platform and climbed onto the bed as Lisa opened her mouth again and took Charles' cock in between her lips. Rita giggled as she raised her hips and shoved her panties down, sliding them along her thighs before kicking them away. "My turn," she said. "I want to feel that wonderful tongue of yours on my pussy, and you can finally have what you've really been missing, sweetheart." Lisa gasped as Charles' cock slid from her lips, and she nodded. Charles stepped to the side and watched as Lisa climbed to her feet and onto the bed, centering herself between Rita's thighs. "He's missed it, too," Rita said as Lisa kissed her inner thigh. Charles positioned himself behind Lisa and grabbed her hips, pulling her back to him. "I don't think he'll last that long inside you," Rita said, "especially since you were sucking him off to get him ready." "That's okay," Lisa said. "We have plenty of time to get caught up. Don't we?" Lisa gasped and clutched at Rita's legs, and Charles sighed as he leaned forward and slowly penetrated Lisa's pussy with his throbbing penis. "Ohgod that feels good," Lisa said. "You've missed it, haven't you?" Rita asked. "Missed having your brother's cock inside of you." "Yesss." Lisa moaned as Charles thrust slowly in and out of her. "It feels sooo good." "Say it, baby," Rita said. "It feels so good having your cock inside me, Charlie." "It feels awesome being inside you, Lees." Lisa pushed up and turned around inside Charles' arms. "I love you, brother mine," she said. Charles dipped his head to meet her upturned lips and kissed her. "I love you, too, little sister." Rita giggled. "Now fuck your little sister and fill her with cum," she said. Lisa fell forward again and began pretending to make love to Rita with her tongue, but each thrust into her swollen sex made her moan. Charles grunted, shifting his feet and grabbing Lisa again by the hips. "Oh... here it comes, sis. Here it comes..." Lisa gasped and dug her fingers into Rita as Charles began to pound into her. "Ohgodyes," Lisa gaspsed as their thighs slapped together. "Fuck her. Put your cum inside her," Rita said, grabbing at Lisa's head and pressing her in against her thighs. Charles groaned and his ass flexed as he thrust into Lisa, burying his cock inside of her. Lisa gasped and moaned, pressing her face in between Rita's legs as pleasure took her. Finally spent, Charles loosed his hold on his sister's hips and Lisa fell forward into Rita's arms. "As good as you remember it?" Rita asked. "Better," Lisa said an instant before Rita's lips covered her own. Ali closed her mouth and swallowed hard. This was... unbelievable. She turned around slowly to make sure she wouldn't kick something that would give her away, quietly slipped on her shoes, picked up her backpack and closed the door behind her. "What took so long?" I asked as Ali came bounding towards me. "Not here," she said. She grabbed my hand, laced her fingers with mine and locked eyes with me. "We need to go home so I can tell you a big secret." Lisa was still curled against Rita when Charles walked back into the room. His cock was still semi-hard, even after unloading a torrent of semen into his little sister. Rita was swirling her finger in the opening of Lisa's pussy as cum oozed out of it. Lisa had always enjoyed being teased like this, and she and Rita both enjoyed tasting Charles' semen once expelled into them. "They're a beautiful couple," Rita said. "What you told us about them..." "I don't want to talk about them right now," Lisa said. "Why not?" Charles asked. "Because I'm enjoying incredible euphoria at the moment," Lisa replied. "How euphoric would it be for them to see you fucking?" Rita asked. Lisa looked up at her and shook her head. "I don't think anyone is ready for that." "No?" Lisa looked at her brother. "You'd want to do that? To fuck me with them watching?" Charles shrugged. He and Rita were exhibitionists as much as they were voyeurs. "You watch them all the time," Rita said. "That's different." "Not really," Rita replied. "No different, really, than watching Charles take me." Lisa sat up and shot glances at her sister, then at her brother. "It is different," she said. "When I watch the two of you together, every fiber of my being wants to be you or be with you. It's not like that with them." "You haven't slept with them?" Charles asked. Lisa shook her head. "I... Ali and I made out the first time I shaved her..." "Made out?" Rita asked. Lisa sighed. "I made her cum, and I guess you could say we slept together, because we were both naked... right here, in fact." "But not... her brother?" Lisa shook her head. "I've been... so close to just..." How many times had she wanted to do just a little more than touch him, knowing what it would lead to? "And I'm still not positive their brother and sister." "Pretty sure, though," Rita said. Lisa nodded. "They know," Rita said. "Know what?" Charles and Lisa both looked at Rita as she threw her arms over her head and stretched. The enticement of opening herself to them like this would soften the blow of what she was about to tell them. "At least Ali knows. I'm assuming she'll tell him," Rita said. "What?" Lisa asked. "What did you do?" Rita smiled. "Ali forgot her backpack." Lisa's jaw dropped. "She came back in, very quietly, I might add, to get it just as I was coming back in here." "What did you tell her?" Lisa asked. "Just that she and Tommy looked delicious together and that we'd see them tomorrow. Then I finished undressing as I walked in here to find Charles sweetly fucking your mouth." "What did she see?" Lisa asked. "What did she hear?" Charles was already shaking his head, because he knew the answer to the question. "I rather imagine she heard as well as saw everything," Rita replied. Lisa began breathing short and rapid. "What do you mean she saw everything?" she asked. Rita sat up and kissed Lisa, gently stroking her face as Charles laid down beside her. "She saw you giving Charles a blowjob, then she saw you go down on me while he began fucking you. She stood there watching until both of you came." Rita leaned forward until she and her sister were nose to nose. "And she heard you call each other brother and sister." Lisa fell back against the bed and covered her face with her hands. "You might shouldn't have done that," Charles said. "I have a lot of work to do with them, yet," Lisa said. "They'll be back," Rita said. "You sound pretty sure of that," Charles replied. "Yeah, what makes you so sure?" "Well," Rita said, laying back again and gently stroking her nipples. "She didn't run when she heard the words brother and sister. If she was going to bolt, she'd have done it then, I'm guessing." "You're sure about all of this?" I asked. Ali nodded, her eyes still locked with mine. "And I understand now," she said. "Understand what?" I asked. Ali leaned forward and laid her lips against my ear. "How turned on Lisa gets watching us together. Watching them fuck was... hot." She kissed me and stood up. "Get undressed." "Just like that?" She looked at me and frowned. "I just told you about watching Lisa have sex and you're not super horny? I would've stripped and let you fuck me again right there if we'd been able to. My panties are soaked, and not just because you came inside me earlier." "Show me." She shook her head. "First, you. I wanna see you naked, and then I'll undress for you. And you can prove to me how cute you think my boobs are." Moments later, I was kicking my shorts away and Ali was pulling her tank off and tossing it aside. "Want me naked in your lap, I'm guessing?" she asked. I followed her gaze; my cock was quickly rising. I looked back up and nodded. Ali smiled at me, skimmed out of her skirt and panties and reached for my hand. "See how wet I am?" she asked. She pressed my hand against her sopping mound, then encouraged me to slip a finger inside of her. I nodded as she climbed into my lap and offered me her breast. Just a few minutes later, she came like that, with her nipple in my mouth and my finger inside her. When she'd recovered enough that she could stand up, we went to her bed, and I fucked her again, putting a second load of my cum into her pussy. An Uncomfortable Situation Alison took a couple of deep breaths and did her best to relax. Her eyes fluttered back open, and I felt her fingers press into my arm. "I'm glad I'm doing this with you," she whispered. "Me, too," I said. We stood like that, with a couple of breaks, for more than an hour and a half. Time rolled around for what would ordinarily be another break, but Lisa had other ideas. "Go ahead," she said, "relax, take a few minutes and shake out the stiffness. Next, I want you to go ahead and take off the rest of your clothes. You can keep on your swimsuits or underwear, though. And, Ali, you might want to take a look at this." I followed Ali over to the corner Lisa had indicated. Ali gasped as we looked at two freshly completed paintings, both of Ali, both nude. One showed her laying prone, the gentle curves of her hip and ass reflected in smoothly proportioned lines. The other painting was every bit as artistic, but immediately more graphic. In it, Ali reclined, one arm behind her head, her other hand on her belly, her breasts resting atop her chest and the shadow of her sex clearly defined. "You're beautiful," I said. Ali was spell bound. I followed her gaze to the series of sketches sitting nearby. "Don't," she said. She turned to face me, grabbing my arms and trying to shield me from seeing her. "I'm naked in almost all of these." "I know," I said. The sketches ranged from the simple, with rudimentary detail at best, to the delicately ornate, drawings that could have been photographs taken through a filter and softened, their color removed. Alison's hands relaxed as she realized she could not stop me from seeing the fruits of her modeling efforts. Her fingers linked with mine as she moved her body out of the way and stood by me. "Ready?" Lisa asked. We weren't. Not really. But we walked back over near where she was posing us and began to undress. We knew Lisa didn't want a lot of superfluous lines, resulting in Ali deciding to wear a bikini that was both thin and scant. The only swim trunks I had were all baggy, so I was wearing a pair of boxer briefs. I pulled off my jeans and looked at my sister, her ass thrust back and her breasts swaying gently as she bent over taking off her own jeans, and I was suddenly aware of my cock presenting a larger bulge in my shorts than I was used to. "Okay," Lisa said. "Let's do this. Tommy, you sit down here, with your back against that wall. And Ali, sit down beside him, facing towards him at an angle, and lay back into his arms." Ali looked down at me as I settled myself. I looked up at her, offering her a hand as she began lowering herself to the floor. It wasn't as complicated as Lisa made it sound. We simply sat down next to each other, but facing opposite directions, and then Ali leaned sideways, falling against me. I caught her in my arms, immediately experiencing an unexpected rush of the senses. Her perfume, unnoticed earlier, suddenly awakened my sense of smell. And then there was her touch. One small, thin layer of cloth prevented her breasts from brushing across my chest, but in a moment of dark, twisted, sensual indulgence, I convinced myself I could see and feel her nipples protruding against the cloth, raking across my skin. Her hand glanced off of my hip as she sought to steady herself, and her other hand grabbed my shoulder as she came to rest against my arms. "Here," Lisa said, kneeling down beside us. "Let's move this hand here, and..." She pulled Ali's arm away from my body, draping it behind her. Now a little contorted, Ali appeared almost limp in my arms, but with her body adjusted, Lisa could see the curve of my sister's breast. Lisa took my hand from down low on Ali's waist and brought it up her torso, planting it just below Ali's breast. I could feel every breath my sister took, and I swear I could feel her heart racing beneath her ribcage. "Good," Lisa said. "Just like that." Lisa walked back over to her chair, sat down and began sketching again, leaving us to our feigned intimacy. "I'm so embarrassed," Ali said. "I could just die." "Why?" I asked. "Look at me," she said. "This right now; those drawings..." "I told you, Sis, you're beautiful," I said. "You're just saying that," she said. "You're just being sweet." Ali leaned her head forward just long enough to kiss my chest. "No, I'm not," I said. I looked down at her and let my eyes wander down her body, past the nearly flat swell of her lower belly to her hips, a narrow band of cloth interrupting the skin, and on down her legs. My gaze moved back up her body, lingering for a moment on the shadow between her legs where a cloth triangle covered the subdued bulge of her pubic mound. "Ohmigod," she said, whispering in a disbelieving tone. "What?" I looked at her, making eye contact and finding her glaring at me. "You're checking me out!" My mouth dropped open. Of course, she was right. She knew it and I knew it. "I was just noticing, again," I said, "how hot you are." It was her turn to be dumbfounded. "Noticing again?" she asked. "That I'm hot?" "I've always told you I think you're pretty," I said. "But you have to tell me that," she said. "You're my brother. It's your job." "Maybe," I said. "But it's true." "My brother loves me and thinks I'm hot," she said. "What's next?" Ali leaned into me and kissed my chest again, and for a moment, my thumb pressed up into her breast. Ali leaned back into her pose, and Lisa looked at us for a moment that seemed longer than usual before refocusing on the paper in front of her. We stayed in that position for more than half an hour before taking a break, and when went to get back into position, Ali looked down at my boxers. "You're enjoying this, aren't you?" she asked. I wasn't hard, but I was far from flaccid. "Yeah," I said, "a little." We resumed our position, Ali laying my arms, and held it for another collective hour. "Let's try something different this time," Lisa said. "Are you ready?" Ali and I looked at each other nervously and nodded to her. "Okay," she said. "Let's all get a little more comfortable. I want you both to take off what you're still wearing." The rest of her words were a blur, drowned out by the sudden pounding of my heart in my ears. Ali and I looked at each other as Lisa, at the edge of our peripheral vision, was taking off her own shirt. She was now wearing shorts and a bikini top, but we were about to be naked. "I can't," Ali said, her voice low enough only I could hear it. "What do you mean, you can't?" I asked. "You do it," she said. "You untie my top." Ali turned her back to me, and with fingers suddenly as dexterous as table legs, I grabbed at the strings holding her bikini top tied and pulled on them. The strings turned loose and Ali caught the flimsy cloth covering as it threatened to fall from her chest. Holding it to her body, she untied one side, then the other of her bikini bottom. I watched all of this as I peeled my boxer briefs down my legs, suddenly aware of my swelling penis throbbing in front of me. My phallic cobra wasn't so much poised to strike as it was swaying with every movement I made, impossible not to notice. And Ali noticed as her bikini bottom fluttered to the floor and she kicked it aside. She turned to face me and looked me right in the eyes as she pulled her bikini top from her chest. My imagination had probably been foreseeing the future, for now, her nipples were hard, drawn and jutting forward like her body had been shocked by cold water. But the air felt hot; I felt a little flushed, and Ali looked it as she stood there, her breasts rising and falling rapidly with each breath. We stood there looking at one another. I hadn't seen my sister naked since we were little kids when we didn't know any better. Now, she was a grown woman. Looking down, I saw her pussy crowned with only the slightest tuft of hair. Now I knew my sister shaved more than her legs. "You're going to have to stand closer together than that," Lisa said. "You two are acting like you've never seen each other naked before. Get closer together." We awkwardly closed the distance between us as Lisa walked over. Her fingers were cool on my skin as she touched my arm and then my hip, doing somewhat the same thing with Ali as she steered us into the position she wanted. My eyes went wide and my heart skipped a beat as my cock brushed against, and then came to rest against Ali's skin. Ali looked at me her eyes wide with shock and surprise. I watched Lisa as she walked away from us and suddenly felt Ali's hand on my cock. I snapped back to her, startled. "What are you doing?" I asked. Her hand cradled the shaft of my erection, her fingertips resting just above my balls. "You were touching me," she said. "Kind of hard not to," I said, "seeing how close we're standing." Ali looked at me. "That's not what I meant," she said. She took a deep breath. "You were... I mean..." Ali blushed a darker shade of red than I'd seen in a long time. "Your... cock... was rubbing up against my... pussy," she said. We'd grown up side by side and known each other our entire lives, and I'd never heard my sister talk like that. Knowing that we were standing so close to each other, naked, aroused, dabbling in the forbidden, along with hearing her words was enough to make me throb. "Okay," Lisa said. She paused, looking at us. "Great. Ali, I like the way your holding his penis, drawing it to you." One of my hands dangled uselessly by my side; the other rested on her hip. I could imagine what Lisa was seeing; a lover touching his partner as she coaxed him in. "I want the two of you to kiss," she said. "It doesn't have to be a full on kiss. Just bring your lips together, not quite all the way, sort of like you're just coming together to make love." Ali's eyes grew big as Lisa made her last statement, but she leaned forward anyway, her eyes closing as our lips touched lightly. I could feel her breath against my mouth as she exhaled. Ali giggled. "What's so funny?" I asked. "You said it was 'kinda hard' a minute ago," she said. Her hand squeezed my cock and slid up and down it. "There's no 'kind of' about it. You're cock is sooo hard." "Will you stop saying that?" "Are you hard because of me?" she asked. "Yes," I said. Ali's lips moved forward just enough to make full contact with mine, and for a moment, we kissed; not brother and sister, but lovers treading on undiscovered ground. As our lips parted, I felt her hand pulling on my cock, and the head of my penis rubbing against hair, and then warm, moist flesh. My cock pulsed and my heart pounded as I realized what had just happened. "Ali..." "Sshhh..." she said. Our eyes blinked rapidly as we looked at each other. Ali was suddenly breathing hard, too, and she gasped as she did it again. She pulled my cock against her swelling sex, rubbing my sensitive head in the opening of her pussy. "What are you doing?" I asked, my fingers pressing into the flesh of her hip. "I'm sorry," she said. Her eyes told another tale. So did her hand. Her fingers slid up and down my shaft, pausing only long enough to rub her thumb over the head of my cock, spreading the growing moisture over the surface of my increasingly sensitive penis. "I can't help it," she said. "It feels so good." Her lips pressed against mine again, and this time I felt her tongue slide out against my lips. "Ali..." "Don't make me stop," she said. "I don't want to stop." "I don't want you to stop," I said, closing my eyes and feeling the pleasure as the head of my cock moved through the edge of my sister's wetness again. We struggled through it, but succeeded in maintaining our awkward, erotic pose for nearly forty-five minutes. Lisa told us to relax. She said we could take a little longer break, that she had a couple of things she needed to do, and would be back in ten to fifteen minutes. She glanced back at us knowingly as she left the room, pulling the door shut behind her. Ali nearly collapsed against me, her hands grabbing at my arms for support. I caught her in my arms and I felt my cock become trapped against her, plowing into her belly. She clutched at me, fingers pressing into my back with each rapid breath. "Are you okay?" I asked. "No," she said, pushing back from me. Ali pulled away from me and walked off of the elevated landing we'd been standing on. She turned around and practically threw herself back against the wall, shoving a hand between her legs and pressing her thighs together as her other hand crushed one of her breasts, covering and pinching at the nipple. "I'm so fucking horny right now I can't stand it," she said. "I want to cum so bad it hurts." My cock had been hard for nearly an hour now, a light sheen of my sister's pussy juice lubricating the head as she used it to masturbate herself. My balls were heavy with a load of cum that had been wanting out, and I could understand and empathize with her desire to experience climax. I walked over to her, my erection leading the way. Ali stood there, leaning against the wall, grinding her thighs together against her hand. "Will you help me?" she asked. "Will you help me cum?" "What if she sees us?" I asked. "I don't care if she sees us or not," Ali said. "Don't you think she already knows what's going on? That's why she said our break would be longer this time. " Ali was convinced. She gasped, her mouth falling open as she slid a finger inside her swollen pussy. Her hand flew from her breast and clutched at my side. I stepped closer, putting my hands out to catch my sister. My hands brushed against her breasts as I touched her, my hands catching her ribcage. I leaned forward and kissed her on the cheek as she panted, gritting her teeth. Ali's fingers dug into my side as she brought her mouth hungrily to mine, pressing her open mouth against me, our lips finally connecting, forming a channel for our tongues to make connection. My cock pressed in against her lower belly, and I rolled my lower body against hers, trapping my cock and her hand between us. Ali arched her back, thrusting her pelvis forward and pushing me back. I felt her hand grab hold of my cock as she fell back against the wall, and as I was slightly off balance at the moment, I fell against her again. "Ohhh..." Ali responded verbally to the head of my cock rubbing against the wet folds of her pussy. "You're cock is so hard." "You've been teasing me for almost an hour," I said. "I'm starting to hurt, too." "Thrust against me," she said. "Just rock back and forth." I adjusted my footing a little as she held my cock against her. She let go of me as I rocked my hips forward, coating the top of my cock with her pussy juice as I plowed a furrow in her sex. She grabbed my hand and brought it to her breast. I felt her nipple drilling into my hand as my palm fell upon her soft, supple flesh. "Ohhh... that feels really good," she said. "Kiss me." I leaned forward, hand on her breast, cock rubbing against her pussy, and kissed my sister. She gave me her tongue, and we kissed like lovers in the midst of passion. Every moment of contact between the head of my cock and her slick sex was pure joy, but a tease. It was enough to keep me aroused, but not enough to push me over the edge. I began to thrust slower, with more deliberate motion, sensing, feeling the flesh of my sister's sex as I stroked her with my cock. I pulled back a bit too far and my cock sprang upward, slapping the flat of her pubic mound. I bent my knees and pressed forward again as Ali's hand fell upon me, pressing my cock down so that it would stroke her again. I pulled back slowly, letting the head of my cock press up against her, splitting the folds of her labia, pulling back until again I'd moved back too far, and my cock popped free. I could feel my cock passing through the outer edge of her swollen opening, the only thing preventing my entry being the angle at which I was thrusting. Ali took hold of me again, pulling me to her, holding me against her. "Do you want to cum as bad as I do?" she asked. "Yes," I said, my hand squeezing her breast. Ali pushed back against me and raised herself slightly on her toes. Drawing me forward again, I felt her put the head of my cock into the entrance of her pussy. And then she impaled herself on me, pulling me inside her as my cock pressed into her. My hands fell against the wall as I stumbled forward, falling against Ali. I quickly regained my balance and braced myself with one hand as I groped at Ali's hip with the other. "Are you gonna fuck me?" she asked. "Yes," I said, and I began rocking my hips against her. It was immediately electric. Foreplay had been going on for almost an hour, and now both of us were ready to climax. "You feel really good, Sis," I said. "So do you," she said, gasping for breath. "Keep fucking me. You're gonna make me cum." I grasped her hips and pushed her back against the wall as I pulled back, bringing my cock almost all the way out of her. "Don't," she said, clutching at me. "Don't pull out. Ohhh..." I slid into her again, the friction on my cock sending a wave of pleasure through my body. I lifted her leg by the back of the thigh and felt like I was going deeper inside her. "I'm gonna cum, Ali," I said. "Yes," she said. "I want you to." "I'm gonna cum inside you," I said, pulling back and thrusting into her again. I could feel my orgasm building as I pressed myself against her. "Ohhh... I'm starting..." she said. "I'm starting to cummm... ohhh..." Her fingers dug into me as her orgasm began to overtake her, and suddenly, her pussy was contracting, spasming on my cock, driving me to the brink. Just as suddenly, I was thrusting awkwardly, my body jerking as I pressed against her, desperately pumping her pussy with short strokes as I ejaculated into her, filling her with my semen. All too quickly, it was over, and I fell against the wall with her as we both went limp. I caught her in my arms as her legs buckled. We sank to the floor, a sheen of perspiration suddenly making our bodies slick. A sudden noise caught our attention. A box of pencils, spilling on the floor. The door to Lisa's studio shutting again. Ali and I looked at each other, too spent to be embarrassed. I kissed her on the cheek, and she brought her lips to mine. It was soft, gentle, firm, resolute. "I love you, Sis," I said. "I love you, too," she said. We sat there for another minute or two, and then stood up, hopefully to regain some measure of composure. We stole into the bathroom, tissues going between Ali's legs to stem the torrent of semen oozing from her pussy and to catch the last drops as they dripped from my cock. Lisa was sitting on the floor with several sketches spread out in front of her when we walked out of the bathroom. Sitting with her legs spread, I could see all the way up her shorts to the crease where her bikini bottom covered her pussy. Ali and I held hands as we sheepishly walked toward her. My cock now hung heavily in front of me, and Ali's pussy still glowed red, evidence of the act. "I need to work on touching a couple of these sketches up and get some canvases working," she said, looking up at us. I was sure she looked hard at my cock and Ali's pussy. "Why don't we call it a day," she said. "You two go home and get some rest. Today was a hard day." I'm sure the play on words was unintentional, and Lisa blushed when she realized what she'd said. "What I mean," she said, "is that posing in the nude can be emotionally taxing in some situations. And I think today was one of those days. We can pick back up and go at it again tomorrow. If that's okay with both of you?" An Uncomfortable Situation "You still want us to pose for you?" Ali asked. Lisa scrambled to her feet. "Absolutely," she said, stepping forward and hugging us both. "I'm really looking forward to spending more time with you together." Ali and I looked at each other, not sure exactly what she meant by it. I knew what my cock thought she meant; I was already starting to harden again. Lisa went back to her sketches as we got dressed. We waved goodbye to her as we left and told her we'd see her early the next morning. Ali held my hand as we walked out of Lisa's studio. "I can't believe all of that just happened," she said. "I know," I said. "I'm really glad it was you," she said. "I'm glad we've got each other." "Me, too, Sis," I said. "Me, too."