16 comments/ 148092 views/ 129 favorites Billy Turns Tables on Step Sister Ch. 01 By: Swilly Billy Jones was just like any normal, athletic eighteen year old boy. He loved sports, video games, hanging out with his friends, and girls. Most of all, Billy loved girls. He fantasized about sex constantly, and masturbated several times each day. He lived with his dad, John, along with his step mom Emily and his step sister Carla. The family had a very large apartment on Central Park West in Manhattan, and a cottage in the Catskill Mountains north of the city. Cottage isn't really the correct term for the mountain house. Although it was designed to appear rustic, it was anything but. It had nearly every amenity you could think of, but just didn't appear that way. They all loved the house, and summered there each of the four years they had been together as a family. There was a huge open living area with high ceilings and wood beams. This great room housed the kitchen, dining area, and a very large living room area with a large stone fireplace. On the east side of the living room was a door that led into a large master suite, consisting of a sitting room, bedroom and large bathroom with an oversized tub and separate shower. On the west side of the house was a second bedroom that was also very large, along with a good sized bathroom. This bedroom had four twin beds to accommodate Billy, Carla, and any friends they might invite to stay over. I suppose this story really begins in early June of last year. Billy had been assigned the chore of chopping wood that day, and he was exhausted by the time evening rolled around. He showered and retired to his bed fairly early, reading a bit before he curled up to sleep. He had slept for a couple hours before Carla came in to get ready for bed. Carla, like her mother, was a goddess. In fact, describing one was essentially describing the other. They were both tall, blond and leggy, with a narrow waist, wide hips and tits that easily filled out a double D cup. They both had full lips, a slender nose, and bright blue-green eyes. Carla was twenty, and Emily was thirty seven, having had Carla at a very young age. As one can imagine, Billy struggled with his feelings regarding his sister and step mother. He was not a child when they came into his life. He was beginning to grow into a young man, and his raging hormones would never let him forget that these two beauties were not of his blood. Truth be told, Billy had concocted countless fantasies about the two women over the years. To make matters worse, Carla knew the effect she had on Billy, and delighted in teasing him as much as she could. She allowed him to see her in just a bra and panties quite often, insisting they were no different than a bathing suit. She loved leaning over to talk to him, allowing him a perfect view of her ample cleavage. She would often accidently bump into him, making sure her perfect ass rubbed up against his crotch. Carla looked at her brother when she came into the room. He was curled up in bed, facing away from the wall toward the bathroom. "Billy? Are you awake," she prodded. Billy was quiet, so Carla shrugged and pulled off her t-shirt. She glanced in Billy's direction again, satisfied that he was still asleep. She reached back and undid her bra, freeing her large tits from their daytime bondage. After she slipped off her shorts and panties, she tossed them onto the floor near Billy's bed. The panties were silk and lace and very sexy. This was another way Carla loved to tease Billy. She loved having him see sexy little undergarments of hers, knowing that he would wonder how she looked in them. With a final glance at Billy, Carla walked off to the bathroom to shower. Billy opened his eyes into a squint and watched her go. She had awakened him, and he had surreptitiously watched her undress and head to the bathroom. He heard the shower go on and waited a minute or so, then he reached out and grabbed the panties from the floor. He was a bit surprised to find that the crotch of the panties were soaked and a bit creamy. With his cock rapidly stiffening, Billy brought the panties up to his nose and breathed in deeply, reveling in the odor of his sister's cunt. Billy had begun to stroke himself, and, unable to control himself, he reached his tongue out and tasted Carla's secretions. He licked again and again, imagining it was her sweet pussy instead of her panties. Billy had done this before, both with his sister's panties and his mother's. He noted that there were times that the panties were quite soiled, and other times when they appeared to have barely been worn. Frequently, he would cum into the panties when he was finished smelling and tasting them. He always felt a bit guilty, but never enough to stop doing it. Billy was so engaged in what he was doing that he didn't even notice that Carla was standing naked in the doorway of the bathroom and watching him. What he didn't know was that he was the reason her panties were so wet. Carla had spent a fair amount of time sitting on the porch that day, watching her muscular brother chop wood. He was shirtless and sweating and it was all she could do to keep from slipping a hand into her shorts and finger fucking herself as she watched him. Carla lusted after Billy as much as he did her, but she didn't make it obvious as he did. She would nearly always masturbate after teasing him unmercifully, as it made her quite needy. "Oh my God! What are you doing," she said to him. "Are those my panties, Billy?" Billy nearly leapt from the bed when he heard her, throwing the panties onto the floor and stammering. Carla walked over and snatched them up. "Were you really just smelling and licking my panties, Billy? And this..," she said, yanking back the covers to reveal Billy's huge, rock hard cock, still wrapped in his hand. "I...I don't know. I...I was having a dream," Billy said, trailing off. "You little pervert. What am I supposed to do now," she asked, looking at him with a raised eyebrow. "I...Carla...Listen...I'm sorry. I..." "I think I should tell Mom and Dad. Something has to be done about this," she scolded. "Carla, please. I'm sorry. I'll do whatever you want. Please don't tell them." She looked at him a long time before answering. "You need to be punished, little brother. I have just the thing. I am going to tease and torture you whenever I want, and I will not let you cum. You need to learn a little self-control." "What do you mean, tease me?" Carla walked over to the door and locked it, then returned to Billy's bedside. He was looking up at his naked sister, and his cock was throbbing with need. For her part, Carla had been unprepared for the sight of her brother's cock. It was long and thick and beautiful. Seeing it had given her an idea. "Okay, brother. You just lay back and put your hands at your sides. If you so much as lay a finger on me, I am reporting this entire thing to Mom and Dad. Do you understand?" "Yeah, okay. What are you going to do?" Carla climbed onto the bed and straddled Billy, lowering her cunt down so that it rested on his cock. She noted that it was big and hard and was burning hot. "I am going to rock back and forth and rub my pussy on your cock. If you feel like you're going to cum, you'd better tell me. I swear, if you cum, you're going to deal with the consequences, Billy. Understand?" Billy shook his head yes as he stared at his sister's huge tits swaying back and forth as she moved. He closed his eyes in an effort to control himself. Seeing her was too much for him. Billy was both immensely enjoying this and totally frustrated by it. He told Carla he was going to cum several times, and she stopped moving each time, causing him to squirm and beg. When the intervals became increasingly close, Carla abruptly jumped up off of Billy, declaring that she was finished for the night. "Fuck. Please Carla. You can't leave me like this. This is crazy," Billy pleaded. "Go ahead and cum," she told him. "You can do that while I'm discussing your behavior with our parents," she said with a grin. "How long is this going to go on for, Carla?" "Until I'm happy that you've learned your lesson, little brother." Billy groaned and rolled over for a night of fitful sleep, while Carla headed into the shower. The removable shower head came in handy, as Carla came three times in just a few minutes. Unlike Billy, Carla slept very well. The next day, Billy went for a long hike in the mountains, returning around dinner time. Carla was relaxing on the couch watching a movie when he walked into the house. "Hi, little brother. Did you have fun on your hike?" "Yeah. I needed it. Carla...listen...about last night." "Funny you should mention that, Billy. Mom and Dad went out to dinner with the Kanes tonight. They won't be back until midnight. What do you say we barbeque some dinner and pick up where we left off, huh?" She gave him a huge smile and a peck on the cheek. Billy sighed and went into the kitchen for some water. After they had eaten, Carla led Billy into the bedroom and asked him to strip down naked. His shorts came off last, and he was already sporting a throbbing erection. "Oh, my, Billy. You know what? I think you like me teasing you," Carla said as she grabbed his stiff cock and gave it a couple yanks. "Look at how excited you are and we haven't even gotten started yet. Does your big sister excite you, Billy?" Carla pulled off her t-shirt and shorts and stood in front of her brother in just a bra and panties. "Come undo my bra, Billy." Billy walked over and undid the front clasps, and her huge tits sprung free. Carla grabbed his hands and put them onto her tits. "You've been thinking about these for a long time, haven't you Billy? I've noticed you staring at them an awful lot. Do they feel like you imagined they would," she asked. Billy licked his lips and nodded his head. "Take off my panties, Billy." Again, Billy obeyed, sliding her panties down her long legs and removing them. "Go ahead, Billy. Smell them and lick them. You seem to like doing that." Billy stared into her eyes and did as she asked. Once again, her panties were soaking wet. "Now...kneel down in front of me and smell my pussy, Billy. But no touching. After all, you are my brother," she teased. Billy dropped to the floor and breathed her in deeply, moaning with pleasure and need. "Okay. Lay down on your back on the floor. Same rules as yesterday, Billy." Once again, Billy did as she asked. He wanted her so very badly. As much as he needed to cum, this torture was exquisite. Carla again placed her cunt on top of his stiff cock and started to rock back and forth. Just as she had the night before, he noticed that Carla was dripping and oozing all over his cock. She was soaked. He had a notion that she wanted him to fuck her as badly as he wanted to. He had a plan, and it was time to put it into effect. Carla was obviously enjoying the ride, and she got a bit reckless with how far she was moving as she slid back and forth on his cock. Billy sensed that she was actually getting close to cumming, and wasn't paying close enough attention to where his cock head was. As she moved forward one time, Billy thrust his hips down just a bit father and shifted his position slightly. It was just far enough for her pussy to slide past the head of his cock. It was no longer under her, but positioned right behind her wet cunt. When she rocked back again, the head of his cock pierced her lips and popped inside her, causing her to gasp and open her eyes and mouth wide. Before she could move again, he thrust his hips up and slid about halfway inside her. She stared at him in disbelief as she felt waves of pleasure wash over her. Still, she tried to squirm away, but he now grabbed her hips, and, staring into her eyes, held her in place. "Billy...let go of me," she commanded. "What's the matter, Sis? I guess you got a little careless there, huh? How does it feel to have your brother's big cock inside you?" "Stop it Billy. Now," she cried. "No Carla. I'm not going to stop. I'm going to fuck you. When I'm done, you can tell anyone you want to. In case you were wondering, that's only about half my cock inside you right now. Imagine how the other half is going to feel." She couldn't break free from his grasp, and she could feel his cock throbbing inside her. The more she squirmed and struggled, the better it felt. She had lost control of the situation, and with every movement her resolve dissipated. She looked down at her handsome brother, muscular and needy. Something snapped inside her, and she succumbed to her brother. The only thing she could think of was how it would feel to have the rest of him buried inside her. She willingly stopped fighting and lowered herself the rest of the way down onto his magnificent cock. She paused at the bottom to enjoy the feeling of being as full as she was, then began to slowly rock back and forth on his cock. Understandably, it took Billy almost no time to groan and unload a torrent of cum into her needy snatch. The feeling of her insides being bathed in his cum made her cum too. Billy wasted no time flipping her onto her back. He positioned her legs on top of his shoulders and plowed into her cunt. Billy was the one that was in control now. He fucked his sister senseless, being quite rough with her. Carla had never been fucked like this, and was enjoying every second of being pounded by her brother. Billy stopped fucking her and pulled his cock out. He stood up and grabbed his sister by the hair, rubbing his cock all over her face. "Suck it, Carla," he commanded. She took him into her mouth and sucked him, stroking his cock with one hand as she did. After a few minutes, he pulled her head back by the hair he still had a hold of, and came on her face all around her nose and lips and chin. He used the head of his cock to smear his cum into her mouth and onto her outstretched tongue, making sure she cleaned up every bit. Carla collapsed onto the bed, lying on her back and staring at her brother. She was breathing heavily and her head was swimming with all that had gone on. She had thought she would be in control of him, but he had turned the tables on her. She no longer cared. All she wanted was for her brother to fuck her some more. "Oh my God, Billy. Holy shit. I had no idea that my little brother could fuck like that." "You have fucking teased me for years, Carla. I'm done with that shit. I'm going to fuck you whenever and wherever I want. You are going to be my slut. It's payback time." Rather than concern her, his words thrilled her. Her cunt was throbbing and needy again. She licked her lips and looked up at him. "How about now, Billy? Do you want to fuck me some more now?" Billy just grinned at his sister and got between her legs. "I want to see how your cunt tastes first," he replied. "I'd much rather taste you like this than by licking your panties," he said as he covered her quivering cunt with his mouth. Billy started by taking long licks from the bottom of her slit up to the top, kissing her swollen clit each time he reached it. Carla was moaning with pleasure, pulling at his hair with one hand and pinching one of her nipples with the other. He wiggled his tongue in and out of her pussy, tasting the tangy, pungent flavor that he had come to know from her panties. Carla watched her brother as he ate her, which drove her need to cum again. "Fingers, Billy. Use your fingers," she pleaded. Billy looked up into her eyes as he slipped two fingers inside her, then added a third. He started fucking her with them, covering her clit with his mouth and drawing circles on it with his tongue. It didn't take very long for Carla to pull Billy's face hard against her cunt as she climaxed again. Billy didn't give her a chance to recover from her orgasm. Rather, he flipped her over onto her hands and knees and slid his cock into her from behind. Carla let out a gasp and buried her face into the pillows as Billy slammed into her again and again. She was nearly howling with pleasure as her brother used her cunt for his pleasure. She was in such a state of arousal that she came three more times before Billy finally grunted and filled her well fucked cunt with his cum again. They had just finished when they heard their parents walk into the house. They each quietly slipped into their beds, and a moment later, Emily opened the door and looked inside the room. "Are you kids up," she asked? Carla rolled over and looked at her mother. "Hi mom. I'm up. I just got into bed." Emily looked at Carla and then at Billy, who was feigning sleep. "Are you okay? It smells kind of funny in here," said Emily as she walked over and opened the window. The room reeked of sex, and Carla and Billy both knew it. Evidently, it seemed as if Emily did as well. She gave Carla a questioning look, and Carla shrugged. "Sure, mom. Everything is fine." "What did you kids do tonight?" "We had a barbeque and watched some television. Nothing that exciting," said Carla. "Okay. I'm beat. I'm going to head off to bed," said Emily. She glanced over at Billy once more before she left. The sheets were covering him from the waist down, and he was shirtless. Between the wine she drank at dinner, the subliminal effect of the odor of sex in the room, and her stepson's muscular body, Emily saw the sleeping Billy as an attractive, virile man for the first time. The thought made her cunt clench with need, and it shocked her. She was suddenly a bit less tired, and decided to take a bath and make herself cum. For whatever reason, John had little interest in sex these days, and masturbation was Emily's only relief. She ran the tub and lowered herself into it, relaxing and touching herself. Although she tried to fight the thought, she finally succumbed to a fantasy of Billy fucking her on the living room floor. She felt guilty afterword, but with the morning light she found that she couldn't get the thought out of her head. During the night, Carla had tiptoed over to Billy's bed and straddled him, riding his cock to orgasm once again. With daybreak, as Emily lay in her bed struggling with her thoughts, Carla was stroking and sucking Billy's huge cock for breakfast. Her brother was right about one thing. She was his slut, and she had no problem at all with that. In fact, she delighted in the idea, and it made her very needy indeed. End of Part one. Billy Turns Tables on Step Sister Ch. 02 Carla was sitting in the kitchen drinking coffee and having a bowl of cereal when her mother came into the room. Emily poured a cup of coffee and added milk, then sat down at the table across from Carla. She looked at her daughter, and Carla looked back and smirked. "What is it, Mom? You're looking at me all weird." "Are you sure everything is okay, Carla? I was a little concerned last night. You were acting a bit odd." "Mom. I told you. Everything is just fine, okay?" Emily stared at her daughter a bit longer, then shook her head. "Fine. I'm here if you need me," she said. The women sat there in silence, sipping on coffee and drifting off into their thoughts. Carla was actually smiling as she recounted in her mind the events of the previous night. Emily was fairly certain that Carla and Billy were lying to her, and fairly certain why. As a mother, this was an issue that she needed to deal with. As a woman, thinking about Billy having sex made her blush and recall the thoughts she had last evening as she masturbated in the tub. As if on cue, Billy walked into the room wearing only a bathing suit. "Good morning," he mumbled as he scratched his head and stretched. Both women watched him move about the kitchen. Billy caught Emily's eye and she quickly looked away, fearing that he would see her thoughts by the expression on her face. She got up and walked over to the fridge. "Would you like some bacon and eggs, Billy," she asked. "Sure, mom. That would be great," he replied. Billy poured himself some coffee and sat at the table next to Carla. Emily watched the two of them as she cooked, and she could see the glances they were aiming at each other. She had a mix of emotions running through her at that moment, but the one that was the strongest was jealousy. She was jealous that her daughter might well be fucking her stepson. She turned the bacon over, and admonished herself, thinking she had better get herself together. She was going to have to deal with what was going on between these two kids, and deal with it quickly before it got out of hand. John would flip if he knew what the kids were up to. John had left early that morning for a business trip that would last a month. She had a little time to figure out what she would do, but she was clueless about how to handle this. Should she approach them and tell them what she suspected? Should she just try to keep them apart? How would she do that? It would be difficult enough during the day, when she was supposed to be working from home. What would she do during the night? With the kids sharing a bedroom, how could she keep them away from each other? After breakfast, Billy headed off to the lake to go fishing, and Carla grabbed a book and headed for the hammock in the back yard. Emily had a brainstorm and called her friend Brenda, asking if she'd like to come spend a few days up in the mountains. Brenda had twin sons, Jason and James. They were twenty one, and Carla had always had a huge crush on both of them. Brenda accepted the offer, and several hours later she and the boys pulled up to the house, anxious to get outside and enjoy themselves. When Carla saw the boys, she ran over to greet them, squealing and excited. A short time later, Billy came back from the lake, and the four of them headed off into the trails to hike. Emily was quite pleased with herself. The kids wouldn't be alone, and Carla would have two boys to pay attention to. The twins were tall, strong, and handsome. It was just the thing Carla needed. If she was wrong about Carla and Billy, it would just be a fun week for all of them. Forgetting about work, Emily and Brenda sat on the porch sipping wine and catching up. The four kids enjoyed their hike, talking and kidding and teasing. Carla was very happy to see Jason and James, but she spent a lot of time thinking about Billy. She watched him as they walked, and all she could think about was the next time she would feel his hands on her skin. She realized that she would not have an opportunity to feel his incredible cock inside her again while they had visitors, and she became angry at her mother. As the week went on, Carla became more and more needy. On top of that, she started to worry that Billy had enjoyed his fun and would now move on. They really didn't have any opportunity to discuss what had happened, and he seemed to be having a grand time with Jason and James. He was paying little attention to her, adding to her insecure feelings. On Thursday morning, Jason and James slept in, but Billy got up early to go for a run. Carla was awake too, making coffee and pouting. She sat in the kitchen with Emily and Brenda, and they all watched Billy walk out of the house. "He's really grown up," Brenda said to Emily. "He has at that," said Emily. She was blushing at the thought. "All of the kids have. In just a few short years, they will all be out on their own." She pictured Billy lying there half naked in his bed and felt her cunt throb. She blushed again, and got up to pour herself a cup of coffee. She opened the fridge and saw they were out of milk. "Dammit. We have no milk." Emily turned to Carla. "Can you go to the store and pick up some milk, hon?" Carla frowned, but got up anyway. She wouldn't drink coffee without milk, and she needed coffee. She was up most of the night fretting over Billy, and she was dead tired. "Sure mom," she said grabbing the car keys off of the counter. "I'll be back in a while." Carla climbed into the big SUV and pulled out of the driveway. She was about a half mile down the road sitting at a traffic light when she saw Billy jogging around a bend in the road. He saw the SUV there, and he broke into a huge smile and waved at her. When the light changed, Carla pulled over to the side of the road and waited for Billy. He came up to her side of the vehicle and crouched down, looking in at her. "Hey, Sis," he said. "Where you going?" "Down to the store to get milk. We're out." "You want company," he asked her. Carla flashed her best smile at him. "I'd love it, Billy. Hop in." Billy jogged around the other side and jumped in. He looked at Carla and smiled, and she started driving down the road. They hadn't gone very far before they approached a scenic overlook on the right. "Pull into there," exclaimed Billy, as he pointed to the sign. Carla's heart leapt in her chest as she gave him a quick glance and smiled. She made a hard right and pulled in fast, seemingly on only two wheels. "Nice turn, sis," Billy teasingly said. The parking lot was deserted, and Carla pulled the SUV far back under a stand of trees. She put the car into park and turned to face Billy. His mouth was upon hers in an instant. Their tongues danced together as Billy reached under his sister's t-shirt and fondled one of her tits. Carla moaned into his mouth as they kissed. She broke free and looked at Billy. "I wasn't sure you wanted to continue this with me," she said. "You don't have to worry about that. I've been thinking about it all week." "I was so worried," she sighed. "We don't have a lot of time, Billy. Let's get into the back. I need to have your cock inside me again." They flipped the back seat down, and Carla climbed in, followed by Billy. Carla was lying on her back on the floor, pulling her shorts and panties off. She was throbbing and drenched already, and she waited impatiently for Billy to slip his shorts off. He knelt between her legs, and she reached down and grabbed his rock hard cock. She was rubbing it on her pussy and whimpering. "What is it that you want, sis," Billy teased. She looked up at his smiling face. "I want you to fuck me, Billy. I need you to fuck me. Please." "I was right the other night. You really ARE my slut Carla. Isn't that right?" She locked her eyes on his and licked her lips. "I am, Billy. I am your slut. Does that excite you? Are you happy that your sister is your slut, Billy? Look at me, all ready to take your giant cock inside me. It's all I can think about. Your cock inside me. Are you going to fuck your slut sister now, Billy? Please?" Billy grinned and guided the head of his cock inside his sister's dripping cunt. Carla gasped when he penetrated her, and they both looked down and watched as his long fat cock disappeared inside her, inch by inch. By the time he was fully inside her, she had already cum and was clinging to him. Billy started a slow, rhythmic movement, fucking her as he kissed her mouth and neck and tits. Before long, Billy picked up the pace and started to pound Carla. She was very vocal as he fucked her, and an overly excited Billy bit her neck as he came inside his sister, filling her cunt with a load of his cum. He stayed inside her for a little longer, kissing her gently and petting her hair. They put their shorts back on and got into the front seat, making the short drive to the store to pick up the milk. They arrived back at the cabin and went inside, where Emily was shocked to see the two of them together. "I thought you were out jogging, Billy." "I was, mom. I ended up down near the general store and saw Carla in the parking lot. I got lazy and hitched a ride with her. It's really hot outside and I needed some relief," he said, glancing at his sister. Carla rolled her eyes and shook her head at his remark. "Here's the milk, mom," she said handing her mother the bag. "What happened to your neck, Carla? There is a bruise on it!" "I...I don't know. Maybe something bit me I guess." Carla went into the bathroom and examined the mark that Billy had left on her neck. It made her smile inside. He had marked her, and she liked it. "I'll spray some Benadryl on it. It's a bad one." Emily looked at Billy, who shrugged and shuffled out of the room. She was now certain that the two of them were fucking each other, and that thought was solidified when she went out to the car later and saw that the middle seats had been folded down, creating what was essentially a bed in the back of the SUV. Dammit, she thought. She was going to have to talk to them. In the middle of all this, she was still struggling with her own thoughts about Billy. It seems that once she had opened that Pandora 's Box, she could no longer close it. She had masturbated several more times over the past few days, her thoughts drifting to her stepson as she did so. The more horrified she became about it, the more it excited her. She needed to get control of this entire situation. That evening, an exasperated Emily had more wine than she should have as she sat on the front porch. Brenda and the boys had left after dinner, which would leave Carla and Billy alone in the bedroom that night. Emily decided that she would sleep in the living room, and if she heard anything going on, she would step in and put a stop to it. As it turned out, Emily passed out on the couch while the three of them were watching a movie. When the movie ended, Carla put a blanket on her mother and followed Billy into the bedroom. He went into the bathroom to brush his teeth, and Carla followed him in. They stood there side by side, brushing and looking at each other in the mirror. Carla looked down at Billy's crotch, and she could see the bulge rapidly growing there. She reached out with one hand and grabbed it through his shorts, rubbing it and feeling it continue to grow as she did. Carla felt a little weak in the knees. She wanted everything. She wanted him in her mouth and in her cunt. She wanted to kiss him and lick him all over. She wanted his strong hands all over her body. She wanted him to use her like the slut she was for him. They rinsed their mouths and Carla put a finger to his lips to shush him. "I'm going to go check on mom," she whispered. "Okay. I'm going to take a quick shower while you do," Billy replied. Carla snuck out into the living room, and heard Emily snoring lightly on the couch. She went back into the bedroom and locked the door. She stripped naked on the way back into the bathroom, and stepped into the shower with Billy. The shower was big and square and made out of tiles. It was so big that it was open to the room, with no shower curtain needed. Carla came up behind Billy and wrapped her arms around him, kissing his back and reaching down with one hand to stroke his cock. Billy turned around and started kissing his sister, running his hands all over her wet, naked flesh. Carla dropped to her knees and looked up at Billy, a look of lust and need written on her face. She took the head of his cock into her mouth and sucked on it, swirling her tongue over it and stroking him with both hands. It was far too big for her to get too much of it in her mouth, but Billy seemed to be enjoying what his sister was doing. Billy saw movement out of the corner of his eye, and he could see someone standing outside the bathroom door through the mirror. Emily had heard something as she slept, and she went over to the kid's door to check on them. The door was locked. Prepared for this, Emily had the key in her pocket, and she quietly opened the door and tiptoed into the room. The beds were empty and the bathroom door was ajar. She walked near the door, and stopped in her tracks when she saw Carla kneeling before Billy in the shower. Billy's cock was like nothing she had ever seen before. She meant to swing the door open and burst into the room. When she saw Billy naked, she backed up a bit and just watched. She was still half drunk, and her fantasies of the past few days had clouded her judgment. She positioned herself far enough back and off to the side so that she could see them in the reflection of the mirror. She secretly praised herself for buying the spray that can keep mirrors from fogging up. She had a perfect view of what was happening. She told herself she should either confront them or leave, but she did neither. Instead, she reached her hand down her shorts and started to rub her clit. She nearly moaned out loud when Billy had Carla stand up and bend over. He was slapping her ass and pussy with his big, fat cock. Emily wished it was her there in the shower with him. When he entered Carla, Emily bit her lip and wondered just how incredible that must be feeling. It didn't take long for Emily to cum as she stood there, and she quickly exited the room and relocked the door. She went into her own bedroom and rummaged through her dresser for the biggest dildo she had. She flopped onto the bed and fucked herself silly with it, cumming countless times before she finally succumbed to sleep. When Billy and Carla had finished fucking, they curled up in Billy's bed together. Billy had his arm around his sister, and she had her head on his shoulder. "You know, Mom was watching us from outside the door," he told his sister. Carla shot upright. "What? You saw her?" "Yes I did. She thought I couldn't, but I saw everything." "Everything? What do you mean by everything?" "Carla...she was touching herself as she watched us. I swear. I could tell by the look on her face that she came. It...it was kind of hot," he laughed. "Billy...she is going to tell dad. We are going to be in so much trouble." "No she isn't. What is she going to tell him? That she saw us and rubbed her cunt until she came as she watched? I don't think so. I think if she does anything she will talk to us about it. That she will ask us to stop fucking each other. Tell us that it's wrong. That's what I think." "I don't WANT to stop fucking you, Billy." "I didn't say you would have to." "What do you think we should tell her if she brings it up? I mean, we can't deny it. She knows what we were doing." "True, but she doesn't know that I saw her. I know this sounds crazy, but I'm going to fuck her too." "Billy! You can't fuck my mother," said an incredulous Carla. "Oh, yes I can. And will. Well, I will if you're okay with it. I know it's a little freaky, but...If she is part of all this, we have nothing to worry about." "I must be a sick as you are," replied Carla. "The thought of it is actually turning me on," she said as she reached down to grab his cock. She wasn't surprised that it was already hard. Carla climbed on top of him and impaled herself on his cock, riding him until he had filled her pussy again with his cum. They slept soundly wrapped up in each other's arms, and woke up around nine the next morning. Carla left the bedroom first, walking into the kitchen. Emily was sitting at the table, sipping coffee and flipping through the newspaper. "Where's Billy," she asked Carla. "Still in bed. He was rolling around a little. I think he'll be up soon." "Okay. I thought we could take the boat out on the lake today," said Emily. She was sitting there in a bikini with a short cover-up. "I want to discuss something with you two kids before we go, though." "Oh? What's that mom," asked Carla. "Go get Billy and we'll talk about it." Carla tried to suppress a grin, and headed to the bedroom to get her brother. Billy followed her out a couple minutes later wearing nothing but a pair of boxer shorts. He plopped into a chair at the table next to Emily. "What's up, mom," he asked. "Listen kids. I'm not going to beat around the bush. I know you are close in age, and I know you are not really siblings, but you just can't carry on a relationship with each other. It's just wrong. What were you thinking?" Billy turned towards her. "What were we thinking? What were YOU thinking, mom, as you stood in the doorway, watching us and masturbating. Can you answer THAT, mom?" Emily appeared shocked. "What are you talking about, Billy. I...I" "I could SEE you there, mom. You made yourself cum as you watched me fuck Carla. You know what I think," Billy said as he stood up and faced Emily. "I think you'd like to have me fuck you too, MOM. That's what I think." Emily stammered as she looked down, now aware that Billy's cock was hard and getting harder by the moment. The boxers did nothing to hide his giant cock. Emily jumped up from the chair and backed up towards the wall. "You stop this this instant, William," she shouted, trying to sound in control. Billy smiled and moved forward, pressing her against the wall with his body. She smacked him in the face, and his response was to grab her by the hair and kiss her deeply. Emily could feel his cock pressed against her, and she could feel how strong this young man was. He was manhandling her, and she fucking loved to be manhandled. It had been way too long since she had. "Billy," she gasped, and he kissed her again. She struggled not to respond, but she did, just enough to encourage him to continue. Billy reached down and yanked her bikini bottom off, then grabbed her by both thighs and lifted her off the ground, spread open, the top half of him still pinning her to the wall. She struggled to get free but he was too strong. She could feel the heat of his cock as he pressed the head against her cunt. Emily knew that he would slide in quite easily, as she was already drenched with her need. She had completely lost control of this situation, and a part of her was thrilled. "Billy, come on now," she pleaded. "Please, Billy." Billy smiled at his mother. "No need to beg, mom," he said as his cock pierced her lips and entered her pussy. Emily let out a grunt when she felt him inside her, and another, louder one when he quickly rammed into her to the hilt. "Billy," was all she could whisper. He started to fuck her fast and hard, and she wrapped her arms around his neck and just went along for the ride. Billy knew he had her when she came for the first time. The other three times were just icing on the cake. Her last orgasm came when he had his own orgasm, filling his mother's pussy with his cum. Billy found out a lot that day. He found out that John and Emily had been having problems, and that his dad hadn't had sex with her for months. Evidently, he was having an affair with a secretary at work. Billy had a tough time understanding what his dad was doing. Emily was beautiful and sexy, and she was one hell of a nice woman too. He liked her a lot and always had. Billy Turns Tables on Step Sister Ch. 02 It was only a few weeks later when his dad left Emily, and Billy chose to stay with her and Carla. Of course he did. He was oversexed and enjoying every minute of it. He fucked both Emily and Carla every day, and they treated him like a king. Neither of them could get enough of his cock, and he was more than happy to oblige. There was no jealousy between the women. They shared him without issue. On occasion, the three of them shared a bed at the same time, but not often. Billy's biggest concern was that both he and Carla would be heading off to college soon. Before he even left, he began planning what weekends and vacations he would be able to come back to visit and fuck the women. He reckoned that problems like this weren't the worst problems to have for a young man going to college. Billy Turns Tables on Step Sister Ch. 03 The restaurant was boisterous and noisy, but Billy could hear his father John's stare above the noise of place. To say that John was angry with his decision to enroll in SUNY New Paltz for electrical engineering was an understatement. He had long ago been accepted to UT at Austin, and this last minute change had enraged the old man. "How very convenient for Emily and Carla," snapped John. "What is that supposed to mean? You gave Emily the house. What difference does it make if I live there too? It's actually convenient for me, and we'll save money on room and board with me commuting from the mountain house. Hell, with Carla going there too, we can even save money on commutation expenses. I don't understand why you're so freaking angry." "No? I was only married to that bitch for a few years, and you choose to live with her over me? And you can't understand why I'm angry?" "YOU were the one that left, dad. You were never around, running all over with that secretary of yours. Come on. You didn't want me around. If she was still with you, we wouldn't be having this conversation." "That's bullshit, Billy." "Really? I didn't see you for two weeks after you left. You called me...what...two times to see how I was doing? What do you think I thought about that? How do you think I felt? And there was Emily, standing by my side. She isn't a bitch. She's a nice lady. Carla and I are really tight too. I think you're forgetting something. You left me too, Dad." "Well, I needed to get away from Emily for a while. I knew you would be okay there for a short time." "Short time? Come on, Dad. It wasn't until Sarah dumped you that you called to ask me when I was coming back down to the city to live with you. You didn't want me around while she was there. Truthfully, I get it Dad. Sarah is a hot young thing, and you were...let's say...enjoying yourself a hell of a lot. Me being around was going to be a problem for you. I'm okay with it. But please don't make it out to be my fault. As far as school, I could do worse than New Paltz. I love it up there too. So please, just let it go." John sighed and resigned himself to the fact that he wasn't going to change Billy's mind. They finished their dinner, and Billy gave his dad a hug outside the restaurant before hopping into his car for the drive back upstate. His dad watched him pull away from the curb, and started walking up Columbus Avenue toward his apartment. ****** Billy walked into the house and found Emily sitting on the couch watching one of the Twilight movies on television. He ambled over and gave her a quick kiss on the lips. "Hi Mom," he said. "Hi. How did it go, Billy?" "About as well as can be expected, I guess. He's pissed, but he'll get over it." "Good. I don't want you fighting with your father." Billy looked at the television and rolled his eyes. "You're watching this again," he asked. Emily gave him a crooked grin and bit her lip. "I know. It's horrible, but I can't help myself. If I'm flipping through the channels and I see it, I just have to watch. And Billy, you know what watching it does to me, don't you," she said. He grin had changed now into a leer. "Yes I do, Mom," Billy replied as he leaned forward and kissed her lips gently. "You've been fucking me for months, Billy. Don't you think you should start calling me Emily?" Billy reached under her blouse, happy to find her braless. He took one of her tits in his hand, gently pinching and pulling on the nipple. "But I like calling you Mom," he replied. He leaned in and kissed her again, biting her bottom lip as he did so. "Mmmmm. I was thinking about you while you were gone, Billy. I was thinking about your big, stiff cock fucking me." Billy continued to fondle and kiss his mother. He grabbed Emily's hand and rested it on the front of his shorts. She could feel his huge cock already fully erect, and she let out a little grunt. Since the first time Billy had fucked her, Emily was his. She had virtually no control over herself when it came to him. Her desire was overwhelming, and rather than dissipating over time, it had become more so. Emily broke the kiss and pulled her blouse up over her head, revealing her full set of tits to her stepson. Billy pushed her onto her back and brought his face down to her tits. He alternated between them, kissing, licking, biting and pinching. Emily cooed and groaned and squirmed under him, enjoying it but intent on feeling him filling her insides with his cock. He got onto his knees and pulled off her shorts and panties in one motion, then buried his face into her drippy cunt. Emily moaned with pleasure, looking down at her son as he licked and sucked her pussy. She was enjoying it, but there were times, like now, when his cock inside her was the only thing that would satisfy her. "Billy....I really need you to fuck me honey." Billy looked up at her and smiled. "Do you not like, this, Mom?" "I love it Billy, but I need you to fuck me right now. I've been thinking about it all day. Please, don't tease me honey. Just fuck me with that big cock of yours, Billy." Billy got up onto his knees and looked Emily in the eye. She loved when he got serious like this. "You know what the difference between a whore and a slut is, Mom? A whore gets paid for getting fucked. A slut just needs to be fucked. You...are a slut Mom, aren't you," Billy asked as he removed his cock from his shorts and rubbed it all over Emily's cunt. "Fuck, yes Billy. I am a slut. I am your slut, baby. Fuck your slut, honey. She needs it so fucking bad right now. Please honey." Billy smiled with satisfaction. He used the fingers of his left hand to pull the lips of Emily's cunt apart, and used his other hand to guide his cock into her. Emily tossed her head back and let out a huge moan as Billy slid deep inside her. He watched his cock disappear into her, as he often did. He loved listening to her as her filled her deeper and deeper. Once fully inside her, Billy started to fuck her hard and deep. He knew Emily. When she was in this kind of mood, there was nothing else she wanted more than a good hard fucking. Emily dug her nails into Billy's ass as he plowed into her. She was so close to cumming, but was trying to hold off until Billy was ready himself. She failed, wrapping her arms around Billy's muscular back as her first orgasm hit her. Billy didn't slow down at all, keeping up his rhythm as she came. After a few more minutes, Billy suddenly got more serious. He grabbed Emily by the hair and kissed her hard, and his strokes were longer, deeper, and harder than before. Billy groaned into her mouth as his body tensed up and he started cumming. The feel of his seed filling her insides pushed Emily over the edge again, and she bucked and moaned and grabbed at her son. When they had cooled down a bit, Billy sat down at one end of the couch and Emily snuggled up next to him, her back against his side and her legs stretched out down the couch. Billy had one arm around her, cradling her tits as he nuzzled her neck. They were watching television when Carla came in. She had gone to the movies with her friend Janey, and then had a bite to eat. She looked at her naked brother and mother on the couch together and rolled her eyes. "You two are unbelievable," she teased. "Good thing I didn't invite Janey back here. That would have made for quite a scandal." She walked over to the couch and gave her mom a peck on the cheek, and then gave Billy a deep, lingering kiss. "I hope you saved some for me," she said. "I'm a little jealous and want mine too, brother." "I'm always here for you sis," replied Billy. Carla got up from the couch and stretched. "You kids have fun. I'm heading off to bed." She leaned over and gave Billy a deep, wet kiss. "Goodnight, honey. Thank you," she said and smiled. She kissed Carla on the cheek, and headed off into her bedroom. Carla sat on Billy's lap and necked with him for a while. The kissing had reinvigorated Billy, and Carla could feel his stiff cock under her shapely ass. "Let's go into the bedroom, Billy. I want to taste you." Not one to pass up an invitation like that, Billy stood up, lifting his sister and carrying her into the bedroom. He put her down on her feet, and Carla pushed him back against a wall. She dropped to her knees in front of him and started kissing and licking his cock. She loved Billy's cock. Her only wish was that she could take more of it into her mouth. His cock was huge, and her mouth wasn't. That being said, she certainly did fine with it. Carla used both hands to stroke Billy as she used her mouth on the head. She sucked and slurped and licked it as she pumped him. She could see a look of ecstasy on his face, and it thrilled her. Carla adored pleasing her brother in every way. She couldn't help it. She would do anything he asked of her. Anything. Carla moaned when Billy grunted and filled her mouth with his cum. "Don't swallow yet, Sis. Show me," commanded Billy. Carla looked up at him and opened her mouth wide, careful not to let any of his cum drip out. She lifted up her tongue, and Billy could see it covered in his creamy white seed. He smiled at Carla. "Good girl. Go ahead and swallow now, Carla." Carla looked into his eyes as she dramatically swallowed his cum. "You really are as much of a slut as your mother is," Billy chided. "You say that like it's a bad thing, Billy." "It is not at all a bad thing, Sis. It's a very good thing." "Good. Because I fucking love being your slut. Love it. I live for it, Billy. Carla stripped down naked and jumped into the queen bed in the room. A month ago, they had removed two of the four twin sized beds and added the queen. Carla and Billy frequently shared a bed, or at least they did on the nights that Billy didn't sleep with Emily. Billy joined Carla and the two started kissing and touching each other. By now, Carla needed to feel Billy inside her pussy, and she made that clear to him. She turned her back to him and pressed her ass into his side. Billy rolled over and came up behind her. Carla lifted her top leg, giving Billy access to her cunt. He rubbed his cock on her, finding the entrance and slowly filling his sister with his meat. He reached around and grabbed her tits as her fucked her. Carla fucked him back, moving in perfect time with his rhythm. Her brother owned her body, and that made her insanely happy. Billy kissed and nibbled her neck as they fucked, and before long Billy filled his sister with his cum. He wrapped his arms around Carla and pulled her in tight, and they fell asleep like that, with his softening cock still inside her. ******* Over time, Billy had come to realize that these two beautiful women would do anything for him. One might think that Billy would be satisfied with things as they were. After all, he had two insanely hot women as his service whenever he wanted. But he was eighteen, and there was still much for him to experience in life. One night, Emily had confided in him that she had engaged in a lesbian affair when she was younger. The thought intrigued him, and he began to fantasize about Carla and Emily together. He had made up his mind that he would try to make that a reality. Most of the time, Billy would have sex with either Carla or Emily. Once in a while, the three of them would fuck together, but the women had never touched each other during those times. Billy aimed to change that. One evening, Billy was lying in bed with Carla. They had just completed a marathon sex session, and Carla was spent and clinging onto Billy, purring and cooing at him. He looked down at her and smiled. "Hey Sis. Can I ask you something?" Carla raised her head and looked up at him questioningly. "Have you ever thought about being with a woman? I mean, would you ever do such a thing?" "You are such a typical male, Billy." "Maybe so. But you didn't answer the question." "I've thought about it, okay? Let's just say it's on my bucket list." "So how about we check that off for you?" She looked at him with a bit of suspicion. "I'm assuming you have someone in mind?" "C'mon Sis. You know who I'm talking about. We've all been in bed together enough. Can you really tell me that you didn't at least think about it?" "Billy...she's my MOM!" "I know. It kind of turns me on even more. And you two look so much alike. Are you really going to tell me that you've never once had the urge to at least touch her while the three of us were all tangled up naked?" Carla sighed. "Okay, yes. The thought has crossed my mind." Carla was still pressed against Billy, and she could feel his cock rising rapidly as they talked. She reached between them and wrapped her hand around it. "The thought seems to be having an effect on you Billy." "It's fucking hot, Sis." Carla was slowly stroking Billy's cock. "Damn you, little brother. Are you really going to make me eat Mom's pussy?" "I am," Billy replied. "And you're going to like it." Carla moaned and got up and mounted Billy, letting out a huge breath as his cock filled her insides. "Okay, Billy. For you. I'll do it for you. Now just hush up and fuck me." ******* Emily was bent over the island in the kitchen, moaning with pleasure as Billy pounded into her from behind. He reached forward and grabbed Emily by the hair, pulling her head back near his. He bit her earlobe and rubbed his unshaven face across her cheek. Emily loved it when Billy played rough with her, and he was playing rough now. "Mmmmm, Billy. What's gotten into you today," Emily breathlessly asked. "I decided something today. I decided that I'm going to watch you eat Carla's cunt while I fuck you from behind." "What?" Emily turned her head to look at him. "Billy!" Billy yanked her head back by the hair with one hand and twisted one of her nipples with the other. "I need to watch that, Mom. I need to watch you and Carla fuck each other. I WILL watch it mom." "Billy...I can't. How can you ask me to do that?" Billy pulled his cock out of Emily. "Dammit Billy. Don't stop now." "You know, Carla has already agreed, Mom. You've been with a woman. What's the big deal? Are you afraid you'll like it?" "I know I'll like it Billy. That isn't the point," Emily said, turning around to face him. "She's my daughter. I...she's my daughter!" "I know," said Billy. "That makes it even hotter." "You can be a real bastard, Billy. I can't deny you, and you damned well know it. I'll do whatever you want, Billy. Okay? Can you please just fuck me now?" Billy broke into a huge grin and lifted Emily up and onto his cock the same way he had the first time he had fucked her. She closed her eyes and clung to him as he raised and lowered her in a steady rhythm, essentially masturbating with her cunt instead of his hand. Emily came twice before Billy grunted and unloaded into her hungry cunt. He didn't stop until he had drained every drop inside her. ******* The next evening, the three of them were naked in the big bed in Emily's room. The sexual tension in the air was electric, as they each knew tonight would be the night. Billy was sitting on the edge of the bed, and the women were sitting on either side of him pawing and nibbling at him. They each had a hold of his cock and were stroking it in unison. "I want to see the two of you kiss," Billy commanded. The women paused for a moment before moving towards each other in front of Billy. They were very tentative at first, giving each other soft little gentle kisses before Carla boldly held her mother in place and probed her mouth with her tongue. The women continued to stroke Billy's huge cock as they kissed. The more they kissed, the more they seemed to enjoy it. Billy was so turned on that he came for the first time, causing both Emily and Carla to giggle. Carla brought her cum covered hand up to her mouth and licked some off, then offered her hand to Emily. Emily licked the rest off and then leaned in and kissed Carla some more. What had started as something to please Billy had now evolved into something the women were very much enjoying. Billy sat back and watched the women kiss and fondle each other with delight. He thought it might be the hottest thing he had ever seen. "Move up on the bed and lay back on the pillows," Emily said to Carla. "If we're going to do this, it's time to do it." Carla squirmed up the bed and lay there looking down at her mother. Carla was breathing very deeply and trying to stay calm as Emily covered her pussy with her mouth. Carla gazed into Billy's eyes as her mother started to lap at her clit. "Fuck," she whispered. She closed her eyes and let the feelings carry her away. Billy decided that it was time to participate as he watched. He got behind Emily and lifted her ass in the air. She parted her legs enough for him to move in and fuck her. Emily gasped into Carla's cunt when she felt Billy fill her insides with his cock. Carla alternated between looking at her mother's face buried in her pussy and watching Billy fuck her with a slow steady beat. Before long, Carla gasped and came, bucking up against her mother's face. Emily didn't stop. She continued licking and sucking Carl's cunt, thinking how much her daughter tasted like she did. Billy didn't last much longer, filling Emily with another load of his seed. Emily made Carla cum again and then rolled off onto her back. "My turn now, Carla. Come lick Billy's cum out of my pussy, honey." Carla was literally shaking, but she did as her mother asked. She used her fingers to pull the lips of Emily's pussy open, and watched as some of Billy's cum oozed out of her. She leaned forward and lapped at it, causing Emily to ooh and ahhh with pleasure. Wanting more, Carla probed deeper with her tongue, lapping at Emily's insides and making her squirm on the bed. When she was satisfied she had eaten all there was to eat, Carla slipped a couple fingers into her mother and started kissing her clit. Having never done this before, Carla tried to emulate what she most enjoyed Billy doing to her. She must have been doing it right, because before long Emily exploded into an orgasm. This gave Carla some confidence and a feeling of empowerment, and she boldly went on, bring her mother to orgasm several more times. The three of them spent most of the night engaged in one act or another, finally passing out shortly before dawn. Carla winced as the sunlight covered her face as she lay in bed the next morning. She got up to pee, then quietly came back to bed. Billy stirred and looked over at her. Carla curled up onto his chest, looking up into his eyes. "Thank you, Billy," she said. "Thank you so much." Billy pulled his sister in close and smiled as Emily cuddled up on the other side of him. If life could get better than this, Billy thought, he couldn't imagine how. Billy Turns Tables on Step Sister Ch. 04 Emily and Carla sat on the front porch sipping iced tea and watching Billy mow the lawn. Watching Billy work up a sweat was quickly becoming a favorite pastime of the two women. At thirty seven, Emily has had a marked increase in her sex drive. She was basically out of control, and Billy was only too happy to administer to her needs. Without even realizing it, Emily had slipped a hand down her shorts and was pressing two of her fingers against her clit as she watched her stepson work. Carla glanced down and saw what her mother was up to. She giggled and rolled her eyes. "Mom, you really are unbelievable," she said. "What?" Carla raised her eyebrow and made a show of looking down at what Emily was doing with her hand. "Oh. I didn't even realize I was doing that," giggled Emily. "He really has turned you into a complete slut, hasn't he mom?" Emily smiled at her daughter. "Listen to the pot calling the kettle black. You were so loud begging to be fucked last night that the neighbors must have called the police." "That was a problem because we woke you?" "No honey. That was a problem because you didn't invite me to join you," admonished Emily. In the months since Billy had first fucked Emily, the relationships between the three of them had morphed completely. Both of the women had fallen in love with Billy, and he with them. The women loved each other as well. Emily no longer thought of Billy as a boy. She saw him as a man, and he had taken over the household. No major decisions were made without her first consulting with Billy. They engaged in some light bondage and discipline, and it thrilled Emily beyond words to have her stepson spank her ass with his bare hand. Billy ruled the roost, and the two women could not be more satisfied with that. The more Emily watched Billy work as she pressed her fingers against her clit, the needier she became. Watching her brother was having a similar effect on Carla, and she started to rub her own pussy through her shorts. The women were cut short when Billy stopped the mower and walked towards the porch. "It's hot out here. Would one of you beautiful ladies get me a glass of iced tea," asked Billy. Carla got out of her seat and walked toward the door. "Sure little brother," she said as she glanced over her shoulder at him. She wiggled her ass flirtatiously as she walked into the house. Billy sat on the arm of Emily's chair as he waited for Carla. "You are just a joy to watch," Emily said hoarsely. She reached her face up to his neck and ran her tongue from his collar bone to his ear, tasting his salty sweat and lightly biting his earlobe. "I was touching myself while I watched you, and now I'm all wet and throbbing. You want to take a break, honey?" Billy's reply was to grab Emily by the hair and tilt her head back, kissing her deeply. By the time Carla came out with Billy's drink, Emily was topless and sitting on Billy's lap. "I can't leave you two alone for a second, can I," said Carla as she sat down and watched them kiss and fondle each other. Emily was purring and grinding herself against the bulge in Billy's shorts. She wanted more, so she got up and started for the door. "Time to go inside for a while." Billy and Carla grabbed each other's hand and followed Emily into the house. The two women worked together to undo Billy's shorts and pull them down and off. He stood there naked except for his sneakers. Emily was on her knees with his cock in her mouth, and Carla stood beside him kissing him and running her hands all over his body. After a few minutes, the women switched positions. Emily was kissing Billy with extra fervor. "What's gotten into you today, mom?" "I think I'm going to get my period. That always makes me horny as hell. God, I need your cock inside me, Billy," said Emily. "I need you to fuck my brains out. I've had enough foreplay." Carla pulled Billy's cock from her mouth and looked up at her mother with a raised eyebrow. "Wow mom. You are unbelievable today. It's like your cunt is on fire," she teased. "It is, Carla. Let me have him for a couple minutes, honey. You go after me." "Sure mom. I'll sit back and watch. I love watching Billy fuck." Billy got onto the floor flat on his back. He pulled down a pillow from the couch and put it under his head. He watched as Emily straddled him and reached down, guiding his big cock into her bare cunt. Emily closed her eyes and sank all the way down on it, resting a hand on her abdomen as if she could feel him inside her. She loved how deep Billy could fill her. She opened her eyes and looked down at her stepson. She was his, and his alone. Emily started riding Billy, biting her bottom lip and staring into his eyes. "God Billy. When you fill me like this...I swear...I wish you were fucking me pregnant. I'm swollen and ripe, and...ohhhh. Fuck." Just talking about it made Emily lean forward and cum, kissing Billy wildly. Billy had her by the hair and was kissing her back, and he was thrusting hard up inside her. Carla was leaning against the couch with her legs spread rubbing her clit as she watched. "Fuck. That would be so hot, Billy. Watching you fuck mom and getting her pregnant. Knowing that you knocked up my mom with that big fat cock of yours. Knowing that you own her. And me. I would be next Billy. Both of us. Pregnant by you. Your bitches. Your..."Carla trailed off as her orgasm hit. She threw her head back and squirmed around, moaning loudly. Billy heard it all and took it all in, thrusting harder and deeper into Emily until he finally succumbed and filled her with stream after stream of his cum, grunting and moaning the entire time. Emily collapsed onto his chest, petting his face and neck with her hand. She stayed there until his cock softened and slipped out of her, finally moving with a great deal of reluctance. Carla crawled over and took Billy's cock into her mouth. She liked to start sucking him when he was not yet hard, so she could feel all of him in her mouth before he fully stiffened and would no longer fit. She could taste her mother on Billy's cock, and she liked it. It didn't take Billy long to become fully erect again. Carla rolled onto her back, and Billy got between her legs. He pulled her legs up onto his shoulders and filled his sister's cunt with his meat. "Fuck me good, little brother. Fuck your slut of a sister, Billy. Tame me with your cock. Please. I need your taming," Carla begged. Billy was pounding into his sister. She breathlessly whispered "fuck me" with every stroke of his cock until she could no longer speak. She was clinging onto him for dear life, and when Billy thrust into her and came, she too came wildly, biting into his shoulder, scratching his back and pulling his hair. The three of them wrapped around each other and dozed for a while, with Billy awakening first midafternoon. He got up and headed into the bathroom to pee. When he came back out, Carla was sitting on the couch and Emily was in the kitchen, starting to make lunch for them. Billy loved how they looked after he had fucked them. He thought there was nothing sexier than their hair all messed up and their faces all red and chafed by his beard. Emily brought a tray of sandwiches and three glasses of iced tea over to the couch. Billy grabbed a roast beef wrap and took a bite, looking at his mother and sister. "That was pretty damned hot," he said. Emily looked at him and blushed a bit. "Yeah. Billy...I was just talking, Billy. I..." "You were serious, Mom. I could see it in your eyes. The thought of me making you pregnant turns you the fuck on. Big time." "Billy..." "I want you to tell me the truth, Mom." "Okay. Yes. It's really hot to think about. It makes me cum every time. Okay?" Billy gave her an evil grin. "I've been thinking about it myself lately, so it's funny you brought it up today." "Billy, being a turn on is one thing. Bringing a child into this world is another." "Are you saying you don't want to have any more children," Billy asked. Emily sighed. "Billy. I didn't say that." "So, you'd like to have another baby?" "Billy!" Carla was eating and watching the exchange, and she could see Emily's resolve beginning to weaken. Holy crap, she thought. My brother really IS going to get my mom pregnant. Billy continued with his questions. "I asked you a question, Mom. Do you want to have another baby?" Emily looked Billy in the eye. "Yes. Okay? Yes I do. I want to have another baby. But I'm just about divorced. I don't want to be a single mom at thirty eight years old." "In case you haven't noticed, we are a family here Mom. The three of us. We are together." "Billy, you're eighteen. Carla is twenty one. I'm thirty seven. How long do you think this is going to go on?" "You are both my women, Mom. You always will be. You understand that, don't you?" Emily blushed as she felt her cunt clench with his words. Carla was grinning ear to ear, happy to hear how Billy felt. Emily looked down at the floor, then up at Billy. "Yes," she whispered. "I understand." "I love you both. Do you understand that?" "Yes. I love you too, Billy. But..." Billy put a finger to her lips. He took a last bite of his sandwich and sat back on the couch, sipping his iced tea. He looked at the women with an air of authority of a man much older than eighteen. "Mom gets pregnant first," he said. "I don't want you both pregnant at the same time." He turned towards Emily. "Go get me your birth control pills, Mom. We start now." Emily opened her mouth to say something, then thought better of it. Her heart was pounding, and every beat echoed in her now throbbing pussy. Deep inside, there was nothing more she wanted this moment than to have this beautiful young man impregnate her and be the father of her child. She went into the bedroom, returning a minute later with the pack of pills. She handed them to Billy, biting her lip and staring into his eyes. "Do you think you can maybe finish the lawn later? I really need you to fuck me again, Billy." Billy nodded and looked at Carla. "Go, go," she said, shooing them into the bedroom. "Oh my God. I'm going to be an aunt and a sister at the same time," she squealed. Carla cleaned up the remnants of lunch as she listened to the sounds of Billy fucking her mother in the next room. She was smiling and humming to herself as she worked. When she was finished, she fell onto the couch and used her fingers to bring herself to several orgasms. ****** Within a few weeks, Emily was ovulating. To say that the atmosphere in the house was sexually charged was an understatement. Billy fucked Emily relentlessly, and Emily couldn't get enough. Both of them tended to Carla's needs as well, making sure she didn't feel left out. There was little surprise but much joy a few weeks later when Emily came out of the bathroom with a smile on her face, holding up the pregnancy test stick. "I hope you know what you're doing, Billy. You've gotten me pregnant. You've gotten your mom pregnant." Billy was sitting in a chair in the living room, and Emily dropped to the floor in front of him and opened his shorts. His cock was at half-mast and growing rapidly, and Emily wasted no time using her mouth to please her son. Billy held her head in place as he filled her mouth with his cum, and Emily gobbled down every bit. Emily's tummy began to grow, and the bigger it got, the hornier she got. It seemed to affect Carla in the same way, and it was all Billy could do to keep up with the two women. Emily had gotten very fond of licking Carla's pussy, bringing her daughter to orgasm after orgasm. Billy was thoroughly enjoying Emily's body as it grew. He was particularly enamored with her tits, which seem to have grown at least two cup sizes. He asked Carla to film him and Emily as he fucked her from behind, her huge, swollen tits swaying with each stroke, her tummy plump and full of his child. It was an interesting nine months to say the least. They were the talk of the delivery room when the nurses finally got their hands around who was who. Both Billy and Carla were present at the delivery. A groggy Emily looked up at Billy as he held their son, and she wondered how anyone could love a man more than she did at that moment. As she drifted off to sleep, Billy and Carla left the room to go home and get some sleep of their own. Carla hooked her arm around her brother's as they walked, and leaned her head onto his shoulder. "When will you take my pills from me, Billy? You promised I was next," Carla said as they walked through the maternity ward. The head nurse popped her head up with an incredulous look on her face as she heard this. Billy looked at her with a smile and a shrug, and headed out the door with his sister.