She's my sister. I shouldn't be thinking this way.
Kyle tried to shut the image of his naked older sister out of his mind, but it wouldn't go away. He hadn't meant to walk in on her when she was just getting out of the shower, but she hadn't locked the door! It was her fault, really. She had no right to be angry.
But now that image wouldn't leave his mind. Her tits... My sister's tits...
It was so wrong. But his hard-on wasn't going down.
I have to think about something else. He rolled off the bed and turned on his computer. He knew his parents were tracking his phone, but they didn't know enough about Linux to snoop on him on the desktop.
Kyle opened his favorite porn site, clicked "I Am 18" - a lie, of course, he was half a decade from 18, but it wasn't like anyone was ever going to check - and opened up the first video that looked interesting.
It was standard stuff: just a slim young white woman being pounded in missionary position by a muscular dude with a massive cock. Kyle tried not to think about the size difference as he stroked his own dick. It was still growing, he told himself. It would get bigger when he got older.
Normally, he'd be finished in a minute or two, but this time it just wasn't doing it for him. He stayed hard, he kept stroking, but he wasn't getting any closer to finishing.
Just as he was about to search for another video, he heard something that made his cock swell up harder than ever: "Fuck me, daddy."
The woman in the video had said it to the man. It was just dirty talk. So why did it turn him on so much?
Her tits were bouncing with every thrust. Large, round tits with big nipples. Just like Kara's tits, he thought, then recoiled at the realization that he was imagining his sister's face on the porn star's body.
Frantically, he clicked on a thumbnail to load a different video. Anything else had to be better than this.
A young woman was sitting at a desk, writing. He skipped ahead a bit. An older man was standing behind her now, fucking her from behind while she acted (badly) confused and surprised. "Daddy, will this really help with my homework?"
Kyle nearly came, but a wave of disgust at his own thoughts pulled him back from the edge.
What the fuck is wrong with me?
He paused the video and took a few deep breaths. What was that post he'd read online the other day? "Thoughtcrime isn't real! All that matters is what you do!"
Right. These are only thoughts. They're not hurting anyone. What does it matter what I jerk off to?
With a newfound sense of confidence tinged only faintly by the shame he couldn't quite erase, he looked through the recommended videos until he found what he really wanted to see: "Step sister teaches brother how to fuck"
This time he didn't skip ahead. He waited through the badly-acted opening, setting the scene for him: the "step" brother was worried about his first time with his girlfriend, so his older sister - sorry, "step" sister - offered to teach him how to please her.
Kyle stroked his cock slowly as the two actors awkwardly kissed and undressed, as the younger brother (who honestly looked old enough to be the girl's dad, but he tried to ignore that) licked and sucked the young woman's clit and tongued her pussy, as she slowly started sucking and then progressed to deep throating his cock...
All the while, Kyle imagined his sister's face on the girl. Imagined that it was him being taught how to please a woman.
As the man's cock finally slid into the woman's pussy, Kyle lost control. His whole body clenched and he struggled to hold back a loud moan as cum shot out of his young, immature cock, all over his stomach, some of it even landing on his chin.
Catching his breath, he reached for the box of tissues he always kept nearby and cleaned himself up. His libido satisfied, there was nothing holding back the shame he felt at what he'd fantasized about.
Worse still, he couldn't deny the truth of it: he wanted to fuck his sister. He wanted Kara to be his first. Thoughtcrime isn't real, he thought, desperately hoping it was true. It's not like I'm actually going to do it.
Thoughtcrime isn't real.
He kept repeating the words to himself over and over as he closed the unfinished video, cleared his browser history, turned off the computer, and laid down to sleep... to dream of his sister's gorgeous tits, and her mouth around his little cock.
"Fuck, I'm sorry!" Kyle sputtered out, but he didn't turn away, not immediately. His eyes were locked onto Kara's large breasts, flitting down now and then to her soft bush, the hair fine and short enough that it didn't hide the view of her big clit.
She'd been leaving the door unlocked when she showered for almost two weeks now. It was about time her little brother finally came in and saw her naked.
She didn't shout at him or chase him out. In fact, she'd been fantasizing about this day for a long time before deciding he was old enough to try to set it up at last.
But when she smiled and took a step towards him, he came to his senses and fled, slamming the door behind him.
Damn it. I took too long.
Maybe the little guy was just too skittish. He was only thirteen, after all, and not exactly experienced.
She knew he was old enough to fuck, though. He didn't know about the gap between his bedroom door and the door frame which lined up perfectly with his desk, where he kept his computer and where he sat to watch porn and jerk off almost every night.
He didn't know that Kara had been watching him from the hallway late at night, when their early-bird parents were fast asleep, fingering herself as she watched him stroke his dick.
It was small, of course. Still growing. But something about that turned her on in a way the larger penises of boys her age just didn't.
Or maybe it was that it was him. Her little brother. The kiddo that she'd adored since the moment he was born.
Kara knew there was something wrong with her. She'd been turned on the first time she'd seen his tiny little penis, when she was only four years old herself and not old enough to understand what she was feeling. She'd learned how to masturbate when she was only eight, and had her first proper orgasm at ten.
The boys at school had shown some interest in her when her breasts began to grow, around age fourteen, but just as quickly lost interest when the rest of her began to grow as well. They called her fat, told her to go on a diet, and made pig noises at her whenever the teachers weren't looking.
Little fuckers don't know that fat tits come with a fat body... But Kyle knows.
Kyle had never said a cruel word to her, although she turned out plump like their father, and he was a skinny little twig like their mom. The two siblings had always been inseparable, and Kara had cuddled and cared for him his whole life - until he hit puberty and suddenly seemed to think physical contact with his sister was gross.
I'll show you gross, little boy. Your big sister is going to touch you in ways no one ever has.
That night, as she spied on him while he jerked off, rubbing her clit with the plentiful juices dripping out of her pussy, she was delighted to find that his interests had changed. He was watching "step" porn now - incest porn, really. Everyone knew the "step" thing was only to get it past the censors.
She watched him stroking his cock, getting very close, then pulling back, clearly upset.
It's okay, little bro. There's nothing wrong with a little fantasy. Remember that post I showed you the other day? Thoughtcrime isn't real, Kyle.
As though she'd managed to project her thoughts into his mind, she saw him calm down and take a deep breath. Then he searched up a video that brought incredible joy to her heart.
"Step sister teaches brother how to fuck"
She watched Kyle stroking his cock slowly, and she inserted her fingers into her pussy, moving them in and out in time with his strokes.
Don't worry, little baby bro. Big sis is absolutely going to teach you how to fuck. And then you'll belong to me. Your cock will be mine. Forever.
She was a virgin still. A few boys had wanted to sleep with her, but she'd always known who she was saving herself for.
I'm going to lose my virginity to you, Kyle. I'm going to lose my virginity to my little brother, and he's going to lose his to me, and we're going to fuck every day for the rest of our lives.
At that moment, Kyle grunted, clearly holding back a scream, and came all over himself. His orgasm brought her to climax as well, and she shoved her fingers as deep in her pussy as she could, feeling herself clench around them, imagining it was her brother's cock.
As he cleaned himself up, she quietly slipped away to her own room, where she had the toys she'd ordered online hidden away. A few of them were large, but her favorite was a small dildo, roughly the size of Kyle's cock.
She slid it into her dripping wet pussy and fucked herself with it hard, pounding it in over and over again, whispering Kyle, Kyle, baby brother, Kyle, until another orgasm came over her and rippled through her body.
The seeds had been planted. The day would come soon.
For now, she just had to be patient.
In the following days, Kyle was very careful not to go into the bathroom without knocking first. Kara had never said anything about him walking in on her naked, but that was probably just because she was embarrassed. Easier to pretend it hadn't happened.
Once, she even called out to him from in the bathroom as he walked by, but he was too terrified to open the door, even invited.
In the evenings, when he got horny, he kept trying to just watch normal porn like he used to, but somehow he could never quite get there. Increasingly desperate, unable to cum, each night he eventually gave in and looked up more "step" sibling porn.
His favorites were the ones where they talked to each other a lot. Where the sister would talk about wanting to cum on her big brother's cock, or the brother would moan about how good his sister's pussy is. The more the actors emphasized their sibling relationship, the more it turned Kyle on, and the harder he came.
More and more, he fantasized about Kara. Her soft curves. Her gorgeous tits. That bit of soft fuzz around her pussy that didn't quite obscure her large clit.
Thoughtcrime isn't real, he kept repeating to himself. He tried to convince himself that it was just a fantasy. Obviously it could never really happen. He hated to imagine how horrified his sister would be if she knew he was thinking these thoughts.
His small, undeveloped cock went limp in his hand as he had that thought. What would Kara think if she knew? Would she ever forgive me?
But his libido won out as the video kept playing, headphones on to make sure no one could hear, but the volume turned down low so he wouldn't be surprised by one of his parents or, god forbid, his big sister. As the young woman moaned, "I can't believe I'm fucking my own brother," he pushed the guilt out of his mind, gripped his young cock hard, and jerked it until he finally exploded into an intense orgasm that left him gasping for breath.
I want to fuck my sister. In the clarity of thought that came after his orgasm, he calmly faced reality. I want to fuck Kara. I want to suck on her clit and her tits, I want to shove my tongue in her mouth, I want to bury my cock in her pussy and fuck her until I fill her up with cum.
He wasn't even horny anymore. He was exhausted and ashamed and he wanted to fuck his own sister.
What's wrong with me?
Kyle burst into tears.
With the headphones still playing incest porn moans in his ears, he didn't hear the door open.
Kara left the door to the bathroom unlocked every day after that, but Kyle never walked in again. She even tried to call out to him when she heard him walking by. His footsteps paused, then continued onward, quieter, like he was trying to sneak away.
I know you want me, baby, she thought to herself. How do I let you know that I want you too?
She continued her nightly spy sessions through the crack in his door, sometimes fingering herself, sometimes sliding the small dildo into her pussy beforehand and trying to imagine she was riding his little cock.
As she'd hoped, Kyle continued to watch incest porn, and he seemed to be getting less afraid of it every time. She contemplated walking in on him and just jumping on his little thirteen-year-old cock, but she didn't to frighten him. Somehow she felt like it should happen more naturally. Ideally, she'd like him to be the one to initiate their first time. But she worried that he would never work up the courage.
One night, while she was fingering herself desperately as he stroked his small adolescent cock, she saw him suddenly stop, his dick going soft in an instant. She couldn't see his face from this angle, but she could see how tense his body was. She guessed that it was another bout of guilt over his incestuous feelings.
Poor baby, she thought. How do I let you know that this is okay? How do I make you see?
Fortunately, the lull only lasted for a few moments before he was rock hard again, responding to something in his headphones. She watched him grip his cock as hard as he could, the way young boys often did, and finally explode into a shuddering orgasm that left cum all over his pajamas.
Kara was at the edge herself, ready to cum along with him, but something was off. Instead of quickly cleaning himself up, erasing his browser history, and turning off the computer to go to bed, Kyle just sat there, staring at the wall. The video continued to play on the screen, but he wasn't looking at it.
At last, he burst into ugly sobs.
She couldn't take it anymore. She couldn't just let him suffer like this.
Pulling her hand out of her pajama pants, she opened the door and walked straight up to him.
Quietly, gently, she pulled the headphones off his ears and wrapped her arms around him. He didn't resist, just sobbed into her shoulder for several minutes while she held him tight.
Carefully, she reached past him to grab the mouse and close the window where the porn was still playing. As his sobs began to subside, she pulled some tissues from the box on his desk and gently dabbed his face clean of tears, and a few drops of cum.
Kara picked up her baby brother and carried him to bed. Without a word, she gently reached down to where his soft young penis was still hanging out of the front hole of his pajama bottoms, gripped it lightly with two fingers, and softly tucked it into his clothes before pulling the blanket over him.
Kyle was still breathing hard, the last of the sobs finally shuddering out of him as he looked at her with pleading eyes.
"It's okay, baby," she finally whispered to him, her face close to his. "You don't need to cry.
Your big sister is here. I'm always here for you, Kyle." She looked straight into his eyes, her expression solemn. Then, even more softly, to be sure that no one but her brother could hear, she added, "Your big sister is here for anything you need." She paused, not breaking eye contact, to let her meaning sink in, then added once more, "Anything at all."
Kyle said nothing, just stared at her, eyes wide, unsure if she meant what he thought she did. Finally, she bent down and gave him a soft kiss on the lips, lingering just a little bit too long for siblings.
"I love you, Kyle," she whispered, then stood up and left, closing the door behind her.
The next morning, Kyle was unsure whether his memories of the previous night were real, or just a very vivid dream. He'd cried so hard he exhausted himself completely. He remembered his sister holding him while he cried, remembered her tucking him in, and...
Did she really, though? Had she actually touched his penis, tucked it into his pajamas for him? Had she actually kissed him on the lips, just a little too long?
Had she actually said, with such intensity in her voice, that she was there for anything?
Surely she hadn't meant...
Had she?
The next morning over breakfast she acted totally normal. There had been no awkward conversations, no strange looks. Had he simply dreamed it all?
But that evening, with their parents out on a date night and Kara in charge, he was once again passing by the bathroom when he heard her finish showering and step out.
"Kyle," she called out.
He no longer expected the door to be locked, but as he turned to look, he realized it wasn't even fully closed. She'd left it open a crack, and through it, he could see her standing there again, fully naked.
This can't be happening, he thought. He considered tiptoeing away again, but then he realized that if he could see her, then she could probably see him too.
"Kyle..." she called out again in a sing-song voice. "I know you're there."
He was already in his pajamas, and the thin fabric did nothing to conceal the erection that had sprung up when he glimpsed her naked form.
He took a deep breath, mustering up all his courage, then finally pushed the door open and stepped into the bathroom.
As before, she said nothing, simply stood there and looked at him, a coy smile spreading across her face. Her eyes drifted down to his tented pajama bottoms, then back up to his lips, and finally his eyes again.
Kyle took another deep breath, then pushed the door closed behind him.
Kara wasn't taking any chances this time. Desperately hoping her little brother had finally gotten the message, she left the bathroom door open a crack before showering this time. Somewhat disappointed that he hadn't come in of his own volition, she called out to him.
Their parents wouldn't be home until very late, possibly not until the following morning.
Tonight was going to be their night.
She saw him hesitate in the hall as she called his name, but at last, at long last, he pushed the door open and stepped inside, visibly erect under his thin pajama bottoms.
She took him in. Her thirteen-year-old brother, who she'd subtly guided towards watching incest porn while she observed him through a crack in the door. She looked down at his small erection, then let her eyes linger on his young, moist lips before staring into his eyes seductively.
She still wanted to let him make the first move. And if he turned and left, she wouldn't stop him.
Kyle pushed the door closed behind him. They didn't need the privacy, of course, as they were home alone, but the gesture had a symbolic meaning.
I'm not leaving, he was saying. I'm here for you.
His breaths were shaky, but she watched him build up his courage before finally stepping forward and reaching out his hand. He wrapped his fingers around his sister's breast, softly at first, then squeezing. His hands were small, his fingers thin, and they didn't quite wrap around her breast.
Kara let out a gasp of pleasure as he massaged first one breast, then the other, then both.
That's enough of a first move, right? she thought, unable to hold back any longer. She placed one finger under his chin and tilted his head up, then bent down to kiss him while he squeezed and massaged her tits.
They exchanged a few nervous pecks on the lips, then, having run out of patience, Kara placed her hand on the back of his head to hold him in position while her tongue entered his mouth. They both moaned in pleasure as their tongues entangled.
Kara reached down and finally placed her hand on his crotch, the thin fabric of his pajama bottoms the only barrier between their skin. Kyle tried to pull back from her mouth to moan, but she kept hold of his head with her other hand, sucking and rubbing his tongue with her own until, at last, they had to come up for breath.
They separated for a moment, their hands frozen—his on her breasts, hers on his head and cock.
Shakily, Kyle whispered, "Is... Is this okay? Isn't this....? Can we really...?"
Kara just smiled at her little baby brother reassuringly, nodded her head, and pulled him in for another kiss.
I'm kissing my sister.
The thought ran through his head over and over again as her tongue massaged his, explored his mouth, ran along his teeth, her hand firmly on the back of his head, holding him in place so she could get her fill of him.
Her hand on his dick was soft, stroking the front of his shaft through his pajamas. His erection pointed straight up, and the gentle pressure of his sister's hand pressed it against his stomach.
Her breasts were so soft in his hands as he squeezed them. He'd never felt anything so soft in his life.
My sister's tits. I'm squeezing my sister's tits.
His senses were overcome with her touch, her taste, her scent.
At last, she pulled back, and they both sucked in air. He hadn't realized how long they'd gone without breathing. For a moment, they stood there, just gazing into each other's eyes, and then she was pulling him back in for more.
She tastes so good...
Suddenly, he felt something new, a sensation unlike anything he'd felt before. His cock, throbbing with arousal, was surrounded, gently squeezed, her hand, her skin, the barrier of his pajamas gone. She'd reached down his pants and grabbed his cock. She didn't jerk it, just held it tight. It was small enough that she could grip almost the whole thing in one hand.
Maybe having a small dick isn't so bad...
He forgot her tongue, a moan escaping him. It felt so different from when he touched himself. He closed his eyes, lost in the sheer ecstasy of his big sister's hand.
Her mouth pulled away from his, and her hand released the back of his head. He felt his pajamas pulled away, the warm, steamy air of the bathroom after Kara's shower on his bare skin, and then...
Hot. Wet. Fuck.
He opened his eyes and looked down to take in the sight of his sister's mouth around his dick. She looked up at him, winked, then began to suck.
It was too much. His own hand as he jerked off to step-family porn on his computer could never have prepared him for this sensation. He lasted less than ten seconds before the orgasm surged through his body, cum shooting out of his young and inexperienced cock and directly down his older sister's throat.
She swallowed every drop, and only when he'd been completely drained did she pull away, wiping some drool from the corner of her mouth as she stood up.
Kyle felt like he might pass out, but Kara wrapped her arms around him and held him up, giving him a moment to catch his breath.
"Did that feel good, little brother?" she asked, rubbing her hands up and down his back. "Did you like your big sister's mouth on your little cock?"
Kyle was instantly hard again.
This is real, he thought. My beautiful sister just sucked my dick.
And now he was going to return the favor.
"Did that feel good, little brother?" Kara whispered into Kyle's ear, her arms wrapped around him, holding him close. She could still taste his cum in her mouth, the sensation of his throbbing as she sucked him dry lingering in her mouth. "Did you like your big sister's mouth on your little cock?"
They were both naked now, their bodies pressed together. She was quite a bit taller than him, but she felt his dick get hard again, pressed against her thighs.
He was panting heavily, but his breath gradually slowed, and she felt his arms finally reach up to wrap around her. His hands rubbed her back, then drifted down to squeeze her ass. Finally, he took a deep breath and pulled away.
Something had changed. He no longer looked dazed and overwhelmed. His soft lips curled into a smile, a mischievous glint in his eye.
"Did you like sucking your innocent little baby brother's cock?" he asked.
Her heart skipped a beat. He was getting into it now, exactly as she'd hoped he would. The tingle that had been growing between her legs became an itch, almost a hunger.
"Did you like the taste of your brother's cum?" he asked.
Kara bit her lip, her heart pounding in her chest. She nodded her head slowly.
Kyle grinned. "Well I suppose it's only fair that I return the favor," he muttered, then ducked down between her legs.
First he kissed her soft mound of pubic hair, nuzzled it with his cheek, then he ran a finger down it, down along her slit, feeling the wetness there.
Kara wobbled a bit, unsure if she could keep her balance as desire overcame her. He seemed to sense her instability, because he stood for a moment and guided her back a step, to sit down at the edge of the bathtub.
Her new position gave him better access to her wet pussy. He guided her legs apart while she gripped the edge of the tub with her hands, then used his fingers to spread her fuzzy lips, exposing her virgin hole and her large clit.
She watched his face as he took in the sight, the smell, of his older sister's pussy. He looked up to make eye contact with her for a long moment, letting her squirm, desperate for his touch.
And then he buried his face in her wetness. She felt his tongue probing inside her, licking the walls of her pussy. Then she felt him move up to lick and suck her clit, sending waves of pleasure through her.
He'd done his homework, her baby brother. He slid his fingers inside her, slender and small but long enough to do the job, sucking her clit while he located her g spot. She cried out as he found it and an intense wave of pleasure surged through her. Taking her moans as his cue, he continued to rub her spot while he sucked and licked her clit.
"Just like that, Kyle," she moaned. "Right there, baby brother. Finger your big sister's virgin pussy."
He paused for a moment, making her squirm, then continued even more aggressively than before. She used her moans and movements to guide him, to teach him exactly where to rub and suck and with how much pressure, and he followed her instructions well.
My little baby brother's fingers are in my pussy, she thought to herself, and the thought pushed her over the edge.
"Finger your big sister's virgin pussy," Kara moaned, and Kyle froze for a moment.
Virgin?
For some reason, Kyle had assumed his seventeen-year-old sister had already had sex. She'd certainly been on dates.
I'm her first. And she's mine.
It seemed right, somehow.
Realizing he'd stopped and his sister was beginning to squirm, he got back to work. He'd read tutorials online about how to do this, how to rub the clit the right way, how to find the g spot, and they seemed to be paying off. But he'd also read that every woman was different, and he gratefully allowed her to guide him, responding to her moans, applying more pressure when she pressed into him, easing up when she pulled away.
It wasn't long before he felt her whole body clench, her moans suspended for a moment as her orgasm surged through her body. It seemed to go on for ages, like waves. He kept rubbing and sucking, wanting her to cum for as long as possible, but finally she pushed him away.
He gave her a moment to catch her breath, realizing in that moment how exhausted he was as well. He slumped to the floor, leaning against the edge of the tub, still between his sister's legs, his head resting on her soft thigh.
She ran her fingers through his hair, and they remained like that for a while.
Finally, he heard her say, "I love you, Kyle."
He smiled and took a deep breath. "I love you too, Klara."
A moment later, she said, "Your dick is still hard."
He laughed then, the reality of the situation beginning to fully dawn on him. "Not my fault my big sister is so fucking hot."
"Hey, there, little boy, swearing is against the rules," she said. "And mom and dad left me in charge."
He lifted his head off her thigh and raised an eyebrow at her. "Well I guess you're going to have to punish me then," he said.
They both broke down laughing, giggling like they so often did as little kids. When the hysteria had passed, Kyle stood up. His cock, still hard and getting needy, was level with Kara's head.
He reached out to her and said, "Why don't you tuck your innocent little baby brother in to bed?"
Kara took her little brother's hand and let him lead her into the hall, where they paused. His room was to the left, hers to the right. They looked at each other, standing there naked, hand in hand, Kyle's small erect cock almost perfectly vertical, unsure which way to go.
"Your bed is bigger," Kyle said.
That was true, but Kara had hoped he would take her in his bed, so she could be surrounded by his scent.
"Your room is further from the stairs," she countered. "If mom and dad come home, we'll have more time to hide."
Kyle grinned and pulled his sister left, towards his bedroom.
Kara hit the light switch as they entered, wanting to be sure she could see every detail of her naked brother. They didn't bother closing the door - that would only make it harder to hear if their parents came home.
They moved straight to the bed, then wrapped their arms around each other, his cock pressing against her thighs, just barely out of reach of her pussy, which was already dripping wet and burning with desire again.
She let Kyle push her backwards onto the bed, then climb on top of her, his lips and tongue greedily exploring her mouth.
In this position, his cock was finally lined up with her pussy, and she felt it pressing against her.
Unable to take it anymore, she pushed him away from her mouth so she could speak.
"Kyle..." she began between gasps of breath.
"Yes, Kara?" he replied, a touch of sarcasm in his voice. He hadn't stopped being her brother, even though they were naked and ready to fuck.
"I can't wait anymore. I want you to fuck me."
He grinned, clearly unable to resist the temptation to mess with his sister. "You want to get fucked by your little brother, Kara?"
She bit her lip. If he wanted to be a little dominant, she was happy to let him. "I do, Kyle. I need to feel my little baby brother's thirteen-year-old cock in my virgin pussy."
To her satisfaction, he flinched at that, clearly caught off guard by how far she was already willing to go. "Pedophile," he said.
"Only for my brother," she retorted. "The only young little underaged cock I want in me is my brother's."
"Pervert," he said, grabbing one of her tits and squeezing it.
"No more than you are," she replied with a chuckle, reaching down to squeeze his dick again.
"Fuck!" he shouted.
"Don't swear, little brother," she scolded. "You're too young to be using grown-up words like that."
Kyle furrowed his brow. "Maybe my big sister needs a lesson in how grown-up her little brother really is."
Before Kara could respond, Kyle forced her legs apart, lined up with her slit, and buried his entire cock in her pussy in a single thrust.
Kara cried out in ecstasy as her brother buried his entire cock in her pussy in a single thrust. Kyle just gasped, the intense pleasure of being inside his sister taking his breath away. They remained that way for a long moment before he regained his senses and began to thrust.
Her mouth had been nothing compared to her pussy.
And his tongue had been nothing compared to his cock.
Even though it was smaller than most of her toys, the sensation of an actual dick, her brother's dick, his skin, his flesh, inside of her, was like nothing she'd ever felt.
Remembering things he'd learned from reading tutorials (and watching porn), Kyle repositioned them both, pushing her legs straight up in the air so the tip of his small cock would rub against her g spot with each thrust.
It worked. The expression on Kara's face changed, the surprise of the intense new sensation more than she was ready for.
"Fuck me," she gasped. "Fuck me, baby brother. Fuck your big sister's pussy."
"That's it," Kyle grunted. "Take your little brother's cock. Take it!" He thrusted hard, enjoying the sensation of his sister's slick pussy engulfing his entire dick. He'd already cum once, straight down her throat, so he could last a little longer this time. "Take your baby brother's cock, you fucking pervert!"
The dirty talk intensified both their pleasure. "Yes, Kyle, fuck your sister! Your sister's pussy is so hungry for your little dick!" Thrust after thrust sent waves of pleasure through her. "I only want you, Kyle! I only want my brother's cock! Only my brother can make me feel this good!"
"Take your brother's cock, you fucking pervert! Take your thirteen-year-old brother's virginity, you pedophile!"
The dirty talk was bringing both of them close to the edge. Each of them realized simultaneously that they wouldn't last much longer.
"Cum in me," said Kara.
"You want your pussy filled up with your little brother's cum?" said Kyle.
"Yes! Yes, please, please fill up my pussy with your cum! I want my baby brother's cum in my pussy! Cum inside me, Kyle!"
Those words pushed Kyle over the edge. Another orgasm surged through him. His whole body clenched, and Kara felt his cum shoot hard into the depths of her pussy. The sensation was just enough to trigger her own orgasm, which rippled through her body like waves as she clutched her naked brother's body in her arms.
Kyle collapsed in top of his sister's soft body, and the two of them lay there for a long time, arms around each other, gasping for breath.
"I love you, Kyle," Kara managed to whisper before drifting off to sleep.
Three hours later, when their parents returned home, they found the bathroom lights on. Both their children's clothing was in a messy pile on the floor. Exchanging a knowing look, they both turned towards Kyle's bedroom, where the door was open and the light was on, and their son and daughter were lying together, naked, asleep in each other's embrace...