141 comments/ 873111 views/ 853 favorites Quarrelling with Kaylee By: en_extase Do not reprint this work on any other website, or any medium, without the express consent of the author (me!). Author's Note: I realize this story may seem a bit long at first glance. Please note that is has been divided into several small, manageable chapters. Since I wrote it as all once piece, I wanted to submit it that way. Synopsis: It's spring break and Kaylee, a freshman in college, doesn't have the means to go on an exciting vacation like her classmates. Desperate to get away from her dorm, she decides to make the short trip to visit her older sister for the holiday. Once there, she resolves to try and seduce her sister's boyfriend, who also lives there. He finds himself reluctantly attracted to Kaylee, and tries his hardest to resist her advances for the next week. The story takes place from his point of view… Quarrelling with Kaylee I realized with some shame that as soon as I was alone in the bedroom, my mind still reeling and replaying some of that recent exchange of words, that my mild excitement had zero trouble growing into a full blown problem. Admonishing myself, I realized that at least my earlier anxiety helped to mask something of what I was really feeling. The problem being though, that I was really feeling something in the first place due to Kaylee. I tried to squelch my guilt and just put the entire thing out of my mind. Readying myself with some haste, I escaped the apartment and told Melissa that I was heading into work for the afternoon, hopefully to clear up most of the loose ends so I could relax away the majority of the week. Kaylee was in the guestroom, presumably getting dressed for the day, and so I avoided having to say anything to her. Regardless of my clean getaway, I found myself nearly obsessing over my breakfast that morning during my drive. I reran her comments in my head and tried to come up with witty comebacks instead of my pathetic stuttering. Then I recognized I was fretting over sounding stupid to some… teenager of all things. What did I care what she thought about me? It's not like I need to impress her for any reason. Well, that's what I tried to tell myself anyway. But the truth was, I felt like an idiot for coming off like an inexperienced doofus. Maybe the worst part was that I knew that's not who I was. Cockily I thought, 'I could definitely show her a thing or two'. It wasn't long after that when I had arrived at the parking lot at my office. I then realized I just daydreamed the entire commute away, imagining different ways I could fuck Kaylee and impress her. Shutting my eyes with a grimace, I took a deep breath. Get a hold of yourself! I forced myself to think about some of the more mundane things I was about to do at work in order to will my erection away. I was doing okay for the next hour or so. My mind was mostly occupied by my work, and I only found my thoughts occasionally drifting to Kaylee. I wondered what she and Melissa were up to. I wondered what they were talking about. I wondered what Kaylee was wearing… Her tight, ripped jeans again? It was a nice day out, maybe she'd be wearing shorts... Maybe I'll even see her in a swimsuit if she goes out to the pool… I'd shake my head and try to refocus again. And again, I would eventually drift off to fantasizing about her body. God, her wet skin in that towel… If she was such a flirt, why didn't she just fucking let it drop… I was doing one of the worst things possible. The more I pictured her body, the more I found myself loving it. I started falling into the trap of building up her looks in my mind. She's like a younger, sexed-up version of Melissa… This went on for the next few hours. Intermittently I would actually scold myself, or at least convince myself I was being crazy. After all, she was practically a kid! No, she's in college. Well, she's a teenager anyway! With a perfect, ripe body. She comes off pretty immature… Pretty fun too… She's uh, my girlfriend's little sister… That's supposed to be bad… why am I so hard? The whole building was almost completely empty; like I said, most folks were on vacation. I had been so lost in my thoughts that I actually jumped a little in my seat when someone stepped in my office, knocking on the door to get my attention. It was my manager. "What're you doing here?" he gruffed. "Uh, just getting some backlog sorted out." "Hm. Don't really need to do that." "Well, there's not too much else to do so far…" "Right. Why don't you just head home for the day?" "I could just finish this…" "Mm. Okay. Do that, then go home. No point in spinning your wheels this week. Don't need to come in this week, really." "I uh, don't have vacation yet…" "Huh, yeah well, think of it as a perk. Spillover from everyone else's. Don't let me catch you here tomorrow. I'll call if I need you for anything." "Uh, okay." He left and I finished up my task, a little perplexed. I guess I was pleased that he said I didn't need to come in. I was planning on it anyway… But I wasn't quite sure how I felt about it anymore. It dawned on me that Melissa was still going to be working most of the week, which I suppose I already knew… But, well, there was Kaylee. Was this going to be a problem? No, it wouldn't be. At worst, she was just a flirt. What the hell was I worried about? It's not like I would actually make a move on her. Never mind the fact that two days ago, I wouldn't have even registered the thought that, at some point, I'd even consider it... All I had to do was relax. So she's cute, big deal. I was just a little shell-shocked from her outgoing behavior. Well. Easier said than done. Seeing my boss did a nice job of extinguishing any arousal in me, but it wasn't long after he left that the fire started burning again. I tried to picture my own girlfriend to push Kaylee out. It wasn't much use. Of course I thought Melissa was beautiful. Duh. But it's always hard to compare the familiar with the new and exciting. I imagined Melissa in Kaylee's outfit; tight, ripped jeans and a tiny shirt. It was kind of hot, but it ultimately just didn't fit. She's just too mature for it. Not like her little sister. She's young enough to make it work, old enough to make it too damn sexy. I got home that evening; they weren't back yet from their day out. I wandered around the apartment, feeling particularly restless, both anxious and nervous for them to return. Eventually they arrived and were kind enough to bring dinner with them. I went to work setting the table while Melissa went to the restroom to freshen up. I tried not to pay too much attention to Kaylee… She was wearing a pair of capris and a tank-top. Yeah, she looked good… But not too good. I was both relieved and secretly a little disappointed that she didn't wear something sexier. Standing around the kitchen and watching me, she started up a conversation. "Soooo… How was work?" "Oh, fine. Pretty slow week. Did you have fun with Melissa today?" She absently twirled a strand of her hair. "Sure. We mostly just went out shopping, you know, girl stuff." "Oh yeah? Go to the mall or something?" "Yeah, we were there for awhile. But you know how it is. Bunch'a high school girls dressed like sluts, competing for attention." I shook my head and let out a little laugh, bringing the food over to the table. "I guess it's not that much different than college," she added on, "But in college, at least the girls put out." I briefly paused in my tracks, shocked at the comment. I felt a nervous flutter in my stomach, which promptly flew down to my cock and gave it a little life. Goddamnit. Before I could react, Melissa came back in. "Food is ready!" I announced and quickly took a seat, desperate to hide any potential tent in my slacks. The evening proceeded fairly calmly then. Kaylee's comments were significantly less risqué, if not less sarcastic, while her sister was with her. This was a relief, although I could have sworn she was laughing at me with her eyes from time to time. After dinner, the girls informed me we were going to have a 'pajama party' and watch a movie. They picked up some teen humor movie about hijinks in college. "So you can see what I have to put up with these days," Kaylee smiled. I wasn't really in the mood, but I knew better than to go against two women when they had their heart set on something frivolous. Melissa and I changed into pajamas; they were nothing special. Just your typical plaid pants and a tee-shirt. We came back out and put in the movie. Melissa immediately stole one side of the couch. Then patting the middle cushion next to her, "You can sit next to me!" I gave her a dry smile and sank in next to her. Honestly, it didn't occur to me right then that I'd be sitting in the middle. Not until she came out. Kaylee's pajamas consisted of a pair of extremely tiny, pink shorts and a little top that cut away at the stomach in the shape of a triangle. It would cover her skin or reveal it depending on the way she moved. She also went through the hassle of putting her hair up in a pair of pigtails. My eyes popped when I first saw her, and I'm positive that she knew it. I dropped my stare away as quickly as my wits would allow and grabbed the remote for something else to concentrate on. Melissa made an innocuous comment about her sister's 'cute' outfit. More like dead sexy. Kaylee made a display of not knowing where to sit. "Get on the couch! Don't worry, he won't bite," Melissa teased. Pulling her arms back for a little stretch before sitting down, her top was pulled back to reveal a tantalizing display of her toned, flat stomach. I couldn't help myself and tried desperately to watch out of the corner of my eye, without my girlfriend noticing. Next thing, Kaylee casually flopped down into the last cushion next to me. She pulled her knees up to her chest in this cute little position. In a way, it made her look younger. But the fact that her gorgeous, bare legs were drawn up, right next to me… My mouth went dry as I did my best not to drag my eyes along the length of her body. Those little shorts did nothing to cover up her thighs… I brought one leg up and rested my foot on my other knee, then placed my hands in my lap. Looked natural… I panicked that one (or both) of them would see the start of an involuntary erection forming in my loose pants. My goal for the rest of the evening was to not tear my eyes away from the television, except to look at Melissa. Just pretend Kaylee isn't even there. We watched about a half hour of the movie before Melissa paused it. So far, it turned out to be your typical sexed-up teen flick: Lots of beautiful young people running around, getting into stupid problems while wearing next-to-nothing. Normally I could have appreciated the eye-candy without much fuss, but tonight I couldn't help but associate everything I was seeing with Kaylee. It drove my anxiety through the roof. And my hormones. "I just realized we're missing an essential ingredient for this… popcorn!" Melissa declared as she got off the couch. "I'm going to microwave a bag up real fast." She trotted out of the room and into the kitchen. Kaylee shifted onto her knees and turned her body to face me. I hesitantly looked over to return her gaze. "So, how do you like it so far?" she asked innocuously. "It's all right, pretty funny," I answered. "Yeah… I was thinking about our conversation. You know, about college," she purred quietly. Suddenly I felt her slide one of her hands onto my leg. My body twitched at the touch. "And I was feeling kinda bad that… Well, you said you didn't experience certain things…" Her hand pressed lightly into my thigh as she pushed it up the length of my leg. I was completely taken aback and barely had any time to react. I reactively scooted my body away from her a little bit, into the empty cushion beside me. Without missing a beat, she just crawled along the couch, keeping up with me. "Uh, K-Kaylee… I, um…" Her fingers trailed up to the base of my cock. I realized with utter mortification that I was almost completely hard. "I just thought it'd be nice to give you some of… you know… what you missed out on…" She pressed her fingers down into me, through my pajamas. It sent a jolt of pleasure into me and had the effect of pushing my erection up even higher. I swatted her hand away with clumsy fear. "N-no! What the- what the hell are you thinking!?" I frantically whispered to her, wild-eyed. She bit her lower lip and gave me a shy, seductive smile as she reached her hand out again, this time brushing her fingers along the length of my hardness. She started to wrap her hand around it, causing me to gasp in both shock and desire. I heard the microwave beep and turn off in the background. Oh god, what if Melissa sees this... I grabbed both her wrists and pushed her back rather forcefully. She let out a surprised 'ooh!' that sounded a little too pleased. "J-just… quit it! Okay!?" I stuttered as I recoiled back from her. She gave me a pout. "I was only trying to be nice…" I couldn't believe this was happening. I stared at her in astonishment, trying not to get even more turned on by blatantly checking out her hot body without my girlfriend in the room. I couldn't find the mind to say anything else to her. Then I saw her pout turn up into a knowing grin. She brought her hand up to her mouth to stifle a giggle. I realized she was looking at my still-hard cock, trying to break out of my pants. "Butter in a bucket, coming right up!" Melissa called from the other room. Oh shit! I anxiously leaped over and grabbed a blanket that was folded over on a chair, then sprang back onto the couch. I threw the blanket over my lap just in time for my girlfriend to return with a bowl of popcorn. "Oh, I didn't know you were cold," she inquired, getting back on the couch. "Uh, yeah, just thought it'd be comfortable if we shared a blanket," I offered. She smiled and pulled up a part of it over her legs. "Kaylee, you can take some too, you know!" Her sister smiled too and tugged it over her bare legs. There wasn't too much slack at this point, so she shyly slid her body closer to me in order to make it cover her appropriately. Oh great… I felt her leg cozy up against mine. She knew it, and rubbed it up and down my calf to show it off. Melissa started the movie up again. My heart was racing the entire time; I could barely pay attention to what was going on. All I could think about was my hard-on that would not go away. And Kaylee. That sexy fucking look on her face as she tried to grab me. What the hell do I do? I can't tell Melissa, can I? It wasn't long before, to my dismay, Kaylee made another move. I felt her hand gently rest along my thigh. She left it there, but softly squeezed and massaged it to make sure I knew about it. I did my best to push her hand away from me without causing much stirring under the blanket. I was petrified of Melissa knowing what was going on. Even though it was Kaylee coming on to me… I knew I was fucked if Melissa saw the effect it had on my dick. There would be no innocence on my part either. Maybe five minutes later, Kaylee's hand slithered up my leg yet again. This time though, she didn't stop until she was at the base of my erection. Like before, she gently pushed into me between my thigh and cock, making me squirm under the blanket. I bit my tongue and pushed her away again. Her eyes never left the television, but I could see the small outline of a smirk on her lips. I tried to give her an angry glare, but she ignored me. "My, you're fidgety!" Melissa remarked at me, a little annoyed. "Uh, sorry… Just trying to get comfortable. My leg was uh, cramped." I ground my teeth a little bit. When the fuck does this movie end? It couldn't be that much longer. What was worse is that it only got more blatantly sexual as the plot went on. One of the female leads, a hot little seductress, was trying to get with some other boy. She was wearing progressively less and less as the movie continued, as those things tend to go. It wasn't helping the situation. My hands rested on my lap over the blanket, trying to protect myself from Kaylee. It didn't take much time for her to try and snake her way to my crotch again. First she ran her fingers under my left leg and tickled the backside of my knee. I wriggled again. Melissa shot me a stare. Just focus on the movie… Ignore her… The starlet on the screen was just in her underwear. The boy was about to cave in. She took off her top. My cock was actually pulsing, it was so hard. Okay, maybe ignore the movie… My mouth went dry. Then, out of nowhere, and I honestly don't know how she did it, but Kaylee's hand slinked past me and found my hardness yet again. I pursed my lips shut and tried to push her away, but it was no use. She was determined to stay, and the more I tried to move her, the more attention I brought to myself from Melissa. I panicked, not knowing what to do. For whatever reason, I decided if my girlfriend knew what was going on, I was a dead man. I can't stop her without giving myself away… Confused, resigned, and hopelessly turned on, I allowed myself to give in. Kaylee's fingers expertly teased the base of my cock through my pajamas. Somehow she was gentle enough to never cause so much as a stir above the blanket. I swallowed hard and tried to ignore her. Yeah right. After maybe a minute of that, her fingers walked up to the waist of my pants and started to tug at them a little. I closed my eyes and quietly took a long breath. She tickled my pelvic bone and slipped underneath my boxers. I grimaced as her soft hand darted down along the entire length of my member. I had to bite the back of my tongue not to make any noise or twist in my seat. She held me between her thumb and other fingers, slowly squeezing and pulling me in just the right ways. I couldn't believe how amazing it felt despite the fact that she was barely moving her hand. This can't be happening. The movie was reaching the climactic scene where the title characters would finally consummate sex. It was only a movie, but it bordered on a soft-core porn at this point. I noticed Melissa was pretty engrossed in what was going on. Shit, I would be too if I wasn't being masturbated by her little sister… As this went on, I at first assumed she was going to tease me for the length of the movie, and then once it was over, I would somehow take the blanket and make my escape, hiding my hardness along the way. It didn't dawn on me that Kaylee might actually make me come. And it didn't take long for me to realize that there was no way I could hold out until the film was over. Whether it was actually her skill or if it was just the charged situation and my unrelenting horniness of the day, this girl was fucking amazing. After playing with me for a few more minutes, teasing the head, and forcing me to tense all my leg muscles not to react to her manipulations, she went to focusing solely on the base. She firmly tugged and jerked me there, and it didn't take long to figure out that this was gonna be it. She was unrelenting; the more she did it, the more I felt an orgasm building up behind my cock. Jesus, how is she so good at this… I tried to hold it back, but it was pointless. The urge kept rising and rising. I kept biting the back of my tongue. My breathing was shallow, my cheeks flushed. This was bar none the most twisted moment of my life. As I sensed myself approaching the point of no return, I ashamedly felt my hips faintly thrust to Kaylee's rhythm. I glanced over at Melissa; her eyes were still glued on the screen. Look forward. Don't look at her. I couldn't help it. I cautiously turned my gaze over to Kaylee. I noticed her chest was slightly heaving from excitement. Her lips were parted open as she breathed. She noticed me and slyly turned her face to look into mine. Her eyes bored into me with a look of sultry confidence. I swallowed hard, trying not to tremble from the building crescendo between my legs. Her face broke into a toying smile and she pursed her lips and blew me a silent 'shhh…' Quarrelling with Kaylee I looked at her pleadingly. Who knows whether I was begging her to stop or to finish me off… Suddenly my jaw fell open and I felt my climax swirling up. Kaylee didn't let up, and the first spray of cum shot out of me and into my boxers. I clamped my mouth shut and did my best to stifle a groan. She kept tugging at the base of my cock, squeezing me as it pulsed with each new spurt into my clothes. Shutting my eyes in ecstasy and embarrassment, I felt myself soak my underwear, cum trickling down my thigh. When it was all over, Kaylee invisibly removed her hand from my lap and left me alone. I sat there in between both girls, completely humiliated. I just let my girlfriend's little sister jack me off… right fucking next to her. And I'll be damned if it wasn't one of the best orgasms I've had. Quarrelling with Kaylee She made a pouting noise and looked back at me. "Come on… Show me what- what a bad…" she gave her ass a loud spank and cried a little moan, "…bad girl I've been…" Oh please let me…! "N-no! Get a- get a hold of yourself!" I cried, anxious and desperate. "Mm… Please don't… don't make me beg!" she purred. "I feel like, like such a slut when I- when I beg…" Every time she opened her mouth, I swear my cock screamed a little harder to be let out. There were only two thoughts going through my head at that moment. First: to escape the kitchen and get the holy hell away from Kaylee. Two: … Drop my pants, grab her hips, and fuck her until I can't hold it anymore. Put them together, and you get one petrified guy who can't move either way. "Kay… Uh- Kaylee… I'm not- I… I won't do, uh- this with you…" "Do what with me…?" she prodded, still pushing her ass out at me. "We aren't- I… I won't fuck you!" I blurted. She gasped suddenly and let her skirt drop back down. Her body slid back up so she was standing straight again. Turning around, she gave me an indignant look, one that tried to hide a cocky smile. "Excuse me? Fuck?" she punctuated the last word as if she was shocked. The abrupt change in behavior caught me off guard. What the- *now* what!? She took a step closer to me, a big step. I tried to turn my body, mostly to hide my obvious erection, but she held me in place with her stare. "I never said anything about fucking. What's been on your mind?" she mocked. My face boiled red. "Oh come on!" I tried. "You naughty boy… I was trying- trying to be nice! And all you can think about is fucking your girlfriend's little sister!?" I scoffed, "Don't… Don't give me that bullshit! You! You've been…" I trailed off, groping for words. She took one last step and leaned right into me, her body pressing into mine. She brought her face up and said in a low voice, "Maybe you're the one who needs to be spanked…" As she said it, she snaked her hand down to my crotch and gave my cock a deliberate squeeze. I exhaled a pleasured sigh against my will. "Better get rid of that before sis' gets home," she warned mischievously. Honestly. What the hell was I supposed to do? I was so embarrassed that she knew how turned on I was. Even worse… More than anything I wanted her to fondle me harder. She took her hand away and I instinctively pushed my hips out just a little bit… just desperate for her to keep touching it. No sooner than I made that movement did her mouth drop open in scandalized delight. "What's this? Now you want me to help you with your… problem? Isn't that like, how this all got started?" I ground my teeth. "No." Wow, great comeback. "Hmm… Why do I have the feeling…" she mused, putting her hand on my leg and tracing her fingers up, "that you wouldn't, um… stop me?" I managed to grab her wrist just as she reached my cock. I held her in place… She twisted her fingers around the tent in my pants and gently rubbed. My muscles tensed as she manipulated pleasure to radiate through my body. My blood was fuming. I hated this little tease for being so goddamn cocky and condescending to me… For making me so confused. For making me want to fucking ravage her. Her piercing eyes pierced into me, looking like she knew she had me. I think she did… But then we heard footsteps. Then shuffling outside the door… And then it opened. I reflexively threw her wrist away from me and spun around, pressing my waist into the counter. Kaylee stepped away from me and quickly opened the fridge, pretending to look for something. "Anybody home?" my girlfriend called out happily. Quarrelling with Kaylee Good god yes. "Uhm- N-no…" She pushed her chair back and slowly stood up, running one hand down her stomach and fondling her left breast with the other hand. "Are you… sure?" She took a step closer to me. "Not even a lick?" I almost trembled in my seat as she came nearer. My eyes jumped up and down her body, gawking at every perfect curve. I could fuck her right now… I need to do something… "K-Kaylee, you know I- I won't…" She took another step closer to me; my face was level with her abdomen. Her lower hand trailed down to her tiny panties, her fingers tickling back up her inner thigh. "You wanna lick something… else?" I could practically feel the heat coming off her. "I… N-no!" I can't do this, I can't do this… She was right next to me now. She leaned over in front of me, her tits pushing out in front of my face. My whole body twitched back, completely afraid of what I wanted to do to this girl. She rested one hand on my shoulder. "Oh wait, I forgot… We're all family here…" she mocked sarcastically. I breathed hard, resisting the urge to lean forward and suck on those perfect, firm… "But just remember…" she persisted, "…Tonight? When you're fucking Melissa? Because I know how bad you want it right now…" She ran her other hand down along my shirt, running past my chest and stomach and shooting straight to my lap. Startled, I shoved the chair back and forced myself up. Without missing a beat, she pushed her body into mine, wrapping her arm around me and keeping her other hand on my crotch. With a forceful squeeze, she grabbed my cock through my pants, and said, "We both know which sister you'll be thinking about…" I grunted involuntarily and felt my hips push into her, drawn to her touch. I need more… I put one hand on her stomach and pushed her away. "S-s-stop it…" She took a step back and stood in front of me, her hands rested on her hips and slid back to her ass. She glared at me as she posed, showing off. I've never wanted to fuck someone so bad… With a sour smile, she said, "I mean, if you can manage to wait and fuck her instead of me today…" I ground my teeth and clenched my fingers. I don't care*how* pissed Melissa gets, I can't stay here with Kaylee. I *will* fuck her. Wordlessly, I passed her and walked out of the kitchen. Grabbing my keys, I heard her call out, "I thought you were supposed to keep me company!" I refused to look back at her. As if her body isn't seared into my brain already… Swinging the front door open, "My boss just called. He needs me to come in today." The last thing I heard was an indignant scoff as I slammed the door behind me and went to my car. Quarrelling with Kaylee Quarrelling with Kaylee My knees sagged slightly in disappointment. "Ah- bitch," I cursed under my breath. She slowly brought her body back up, slithering along mine. "Me? What did I do?" she scoffed playfully. "All I did was come here to visit my sister…" Her banter made me steam in frustration and lust. My eyes dropped down to her tits; her nipples were prominently visible through her soaked bra. "You fuckin' tease," I whispered hoarsely. She saw what I was looking at and smirked. "Oh- I'm sorry…" Her hands reached up and unclasped it. She effortlessly peeled the wet fabric off her chest and I took a big breath of anticipation as she revealed her naked breasts. I pushed a hand up her stomach and grabbed one, almost forcefully. She stifled a gasp, "Ah! I thought you- you liked them…" They were so firm… I rolled her nipple between two of my fingers as I groped her. "I especially um…" she pushed her chest toward me pleasingly, "…liked how you tried not to look at them when, um, your girlfriend was around…" I squeezed her hard as she patronized me. Fucking cunt! "Don't worry… She didn't notice…" she mocked. In a flare of passion, I spun her around and pushed her back against the wall. Her eyes went wide in surprise as I glared into her. My conscience was barely a whisper now; I was mostly animal. She actually looked vulnerable like that, her chest heaving in expectation. It made me want her even more. I bent down and kissed her hard on the neck, then down her chest. I wanted to suck her tits. She pushed herself up on her toes to help me, but I was frenzied and impatient. I grabbed her hips and pulled her up, still pushing her against the wall for leverage. She squeaked and wrapped her legs around my waist, her arms around my neck. "Oh my!" With better access to her chest, I eagerly kissed against her breasts. I licked around her nipples, flicked my tongue against them, then took one into my mouth and sucked eagerly. Kaylee's body shuddered as I held her and she pouted a quiet moan. "Ahhh… Where have you been!?" she sighed excitedly. I took my mouth off of her tits and slowly lowered her back to stand on her own. She looked wildly into my eyes. "God… You know how I like my- my nipples..." she trailed off. "How could I forget that slutty story?" I growled. She bit her tongue provocatively and shot her hand down to my crotch, grabbing the base of my cock and tugging at it. "You liked it… You like me being slut, don't you?" she demanded. The sudden attention on my dick forced me to lose my balance and lean forward against her, into the wall. I gasped in pleasure as she excitedly jerked me more. "Ohh…" I groaned out. She was relentless. "Why do guys like that so much? Huh?" She manipulated my erection so perfectly, it was like she wasn't even trying. My hips grinded against her as if I was her puppet. "I guess it's- oh- 'cause we like to fuck? Or is it 'cause we're so naughty? Mm… good boys like you always want the… the bad girls…" I ran my hand down her stomach and forced my fingers beneath her panties, finding her slit. She took a sharp intake of breath. "Ah… Take them… Take them off…" she pleaded. Her fingers grew lax and trailed off my cock. I pulled out from her underwear and grabbed the waistband with both hands. I had to pull it down, inch by goddamn inch, because it was so wet that it stuck to her body. Desperate, I kneeled down to get a better angle to just pull them off. She helped kick them away from her feet once at her ankles. I looked up at her and suddenly realized I was staring straight at her pussy. Before I knew it, a frantic urge overcame me. I needed to taste her. I dove my face forward and wrapped my mouth over her slit. She quickly grabbed the back of my neck, digging her nails into me. I laid my tongue against her pussy and ran it along her for a moment. Her excited gasps encouraged me to slide my tongue into her and lap at her clit. She draped a leg over my shoulder and I had to help her keep her balance by grabbing her hips. Her body rolled against my face, shamelessly fucking my mouth. I looked up at her tight body as I ate her out. Her eyes were shut and her mouth hung open; her back arched and her tits pushed out as her body tensed. I could not think of a sexier sight than to see this teenage slut lost in her own bliss. "Oh… Oh! God this is- fuck! So bad- so bad…" she started in whispered pants. "Tell me- tell me do you- ah! Do you jerk - ooh! Jerk off to me?" She was looking down at me now. I couldn't help myself. I nodded yes and mumbled 'Mmm hmm' into her pussy. She let out a shaky sigh in amazement. "God! You asshole… Do you… ahhh! Do you think- oh- think of me when- when- shit… When you f-fuck her…?" she whispered. It was so wrong and twisted, but I had lost all control. Finally being honest with myself made me that much hornier and excited. I shoved my tongue as far into her as I could and mumbled another 'yes'. She clamped her mouth shut and dug her nails into my neck so hard it hurt. Her hips suddenly bucked against my face erratically and I felt her flush with wetness. Holy shit, I'm making her come!! I didn't want to stop; I wanted to keep giving it to her. Make her feel the uncontrollable heat that I felt. But she pulled her leg off of me and took a step back. I got up from my knees, breathing hard to catch my breath. Her chest was heaving too, and she looked at me hungrily. Without a saying a word, she turned away from me and leaned over, pressing her hands against the back shower wall. She looked back at me behind her, her ass pushing out at me. She's giving it to me. I grabbed onto her and guided my dick into her still-wet pussy. The shower water cascaded against my back and I groaned, pushing my cock into her as far as I could go. She made a whimpering sound at the sudden force of filling her up. My eyes fluttered close as I finally felt the satisfaction of sinking into this week-long tease. I gave her long, slow, luxurious thrusts as I lost myself in her body. Nothing else mattered to me anymore. I needed this so bad. My nerves were so on edge that I knew I could come any minute if I wanted to… I relished the sound of Kaylee's muted moans as she let me fuck her. Finally she interrupted my reverie by whispering again, "How- how long have you- oh… w-wanted this…?" My body tensed at her voice and I pushed into her harder, holding the deep position and staring at her body, looking so submissive for a change. She hung her head down and looked back at me, mouth dropped open as she gasped. I didn't move, shocked and turned on by the dirty question. "Tell me…" she insisted, "When was the- hummm… first moment when- ah- when you knew you w-wanted- oh! Wanted t-to fuck me?" She ground her ass against me in little circles, forcing pleasure along the entire length of my cock, right down to the pressure against my pelvis. I grew hot from the question… I was embarrassed, angry… Hell, it almost made me come. My hands clenched into her hips and tried to force her to remain still. I didn't realize the trouble I was really in and was being flat-out selfish, trying to make this fucking last! Kaylee smiled at me deviously, knowing she had me on the edge. She's the one bent over and still I'm weak for her… I saw her run her tongue across her teeth as she closed her eyes in an exaggerated expression of passion. It looked like she was going to say something else… but then things got really fucked up. We heard the doorknob turn, then felt a whoosh of cold air as the bathroom door swung open. Both of us froze in place, my heart stopping for a second. Then I felt it pounding, curiously almost all my senses focused on my dick, still pulsing in Kaylee's pussy. "Hey, how you feeling?" my girlfriend called out. Kaylee's eyes shot wide open and her mouth made an 'O' before she closed it, biting her lower lip and staring at me expectantly. "Uhh… Okay…" I tried not to sound nervous. I'm dead. "You've been in here since I've been up!" Melissa called out. "Oh, um… Sorry… I was- uh…" I caught my groan in my throat. Kaylee had silently pulled her ass forward and slid it back, sending a jolt along my dick and into my stomach. "Just soaking up the… steam… Um, trying to clear my head…" I groped for an excuse. "Still feeling a little sick?" she asked concerned. "Uh- yeah… Some…" Kaylee started to pull away from me again, but I held onto her and pulled her back into me. Oh god… I was trying to limit the pleasure, but that only heightened it. How the hell am I still turned on…? "I uh, made you coffee…" Go away! "Mm, yeah I smelled it. Thanks!" I listened intensively and realized she was getting ready to brush her teeth. Fuck! Why the hell does she always do that before she eats!? "So uh," her voice came out a little garbled now that the toothbrush was in her mouth, "Do you think you can say 'goodbye' to Kaylee this morning before you go?" Kaylee looked back at me again and gave me a deliberate pout face. The sheer indecency of the situation made my dick swell even bigger. "Um- yeah," I stated abruptly. "Good. Try to be nice… I'm afraid she was getting the feeling that you don't like her," she warned. I had to swallow back ragged gasps as Kaylee wiggled her ass and coaxed my hips into gently humping her again. She jutted out her lower lip as she did it and pretended to be sad at Melissa's comment. Next she took one hand off the wall and quietly slipped it between her legs, then tickled me where the hilt met my sack. "Oh… Uh- No, that's not good…" I muttered, desperate to sound normal. Stop talking and *leave!* Kaylee's touch was driving me wild. The whole scenario was so twisted that I couldn't even wrap my head around it. The longer it went on, the more fucked up it was… The hotter I got. Am I actually going to…? "She wasn't so bad to have around, was she?" Melissa inquired. Kaylee gave me a devilish smile and seductively nodded. She deftly jerked her hips in a quick rhythm, raked her nails lightly across my thigh, and silently blew me a kiss. This isn't happening… "Yeah she's- she's fine…" A lump formed in my throat as I said it. This is so wrong… I felt a flood of energy rush up my legs and pool down from my stomach. I furrowed my brow and let my mouth hang open in anguished pleasure. Oh shit, she's her fucking sister, her little goddamn sister…! I dragged my eyes up along the length of her perfect tight body one last time and then shut them, biting my tongue as I came into her. For a moment, there was nothing but the water hitting my back and come overflowing out of me. Dimly I was impressed at how hard I was climaxing, considering the amount of times I had already jerked off to her… The buildup was worse than I thought. I'm *so* dead… Opening my eyes, I saw Kaylee's hand over her mouth, stifling any noise from coming out as her eyes twinkled in delight. I think my girlfriend said something to the effect of her meeting me out in the kitchen. "Don't use up all the hot water," she cautioned, "There has to be enough for Kaylee after me." Kaylee's face lit up, almost as if she was going to laugh. My body only just then finally calmed down from my orgasm. Really, I'm not sure how I didn't just pass out from it all.