The wind was blustering outside Adam’s window. October’s colored tears swirled in the streets as a chill descended upon the town. The trees were almost completely bare and heavier jackets were becoming an essential part of any trip outside. Winter was slowly creeping in.

Courtney stared out his bedroom window into the gray dismal sky. Heavy snow was forecasted to begin falling this evening and continue into the next day. Like every other teenager, she couldn’t help but hope school would be closed tomorrow. She stood pressed against the glass for a long time, gazing across the windblown rooftops and steeples of the neighborhood, peering down at the people going about their daily business, and imagining tomorrow’s snow covered landscape.

Her bright blue eyes unexpectedly drifted over to a young man on the corner and stopped. He was of average height and physique, seemingly nothing special on the surface, but something about him paralyzed her. Was it his wave of deep chestnut hair and smiling eyes that caught her? Or the tight nylon running pants that outlined an incredible package he appeared to be oblivious to? Courtney began wondering about the man’s penis. She watched him for what seemed like hours but a sudden glance from him was all it took to break her daze and force her to retreat from the window flushed and slightly embarrassed.

She couldn’t help but notice that her nipples were now standing stiff and solid. A slight twinge of pleasure washed over her when she touched them. Courtney slipped her shirt over her head and let it fall to the floor. Gently she began kneading her breasts tenderly thinking of Adam.

Courtney had just turned sixteen a few weeks ago and already she was blossoming into a sexual being. The shirts and jeans that had once fit loose now were skintight. Full C cup breasts that developed on the front of her tiny frame pressed hard against the fabric of her shirts while her plump round ass practically spilled out of her jeans. Her new assets, now perfectly formed on her tight little body, attracted considerable attention from both the boys at school and men in the neighborhood. Even her father and brother began to take second looks.

But that wasn’t all. Just two weeks previously, Courtney stumbled upon a downloaded porno on her brother Adam’s laptop. Curious, she opened the file and started to watch the video. As the graphic images of a threesome between two men and a busty blonde flashed across the screen, an unexpected pleasure tickled her between her legs. The sensation was overwhelming and quickly followed by a warm wetness that moistened the crotch of her pink and white striped panties. Her body’s response to the porn was addicting and Courtney instantly knew she wanted more.

Over the next few days she began viewing the porn on her brother’s laptop regularly. Whenever Adam wasn’t home she’d sneak into his room and watch whatever she could find on his hard drive. For the first few days she just laid there on his bed, taking it all in and enjoying the wet pleasure between her legs. But soon Courtney found her hands sliding down her stomach and in between her lips, gently stroking her clit like the girls in the videos.

After snooping through Adam’s files for days on end, Courtney stumbled upon an unmarked video buried amongst the other pornos. Both horny and nosey, she quickly double clicked on it.

“Fuck me harder! Fill me up!” A girl moaned as a man with a long thick cock pumped her dripping wet pussy from behind. Courtney laid back on the bed and placed the laptop next to her. Her fingertips slowly slid between her lips and settled into their usual location.

The man fucked the girl hard and long, her big ass bouncing against his pelvis with every thrust. Courtney envied the way he gripped her hips and assertively forced his cock inside her. She wished so badly it was her pussy he was defiling. He then suddenly pulled his cock from her pussy and moved his mouth skillfully down to the hole he just plowed. Furiously he began licking and sucking it as the girl remained in the same doggie style position moaning louder than before.

Courtney rubbed her clit hard. Her small fingers slipped in and out of her tight cunt faster and faster as her pussy juices dripped onto the mattress. Her little body wriggled and squirmed with pleasure as she imagined the man’s tongue swirling around her own pussy. Like a starving animal he would nibble on her clit and shove his tongue deep inside her. He would smack her young plump ass and squeeze it between his fingertips before shoving his cock into her for a few more thrusts. His grip on her hips would become tighter as he shot his hot load into her aching cunt. Courtney’s soft moans grew louder and louder as she wildly pushed her fingers in and out, eventually cumming in time with the girl in the video. Cum trickled off her clit.

“God Adam that was amazing!!” Yelled the girl. Adam’s face suddenly appeared on the screen and then the video went black.

Quickly realizing she had just masturbated to her brother Courtney unexpectedly became even more aroused. She had always admired Adam’s athletic body and good looks but lately, the bulge in his jeans secretly teased her. She blamed it on teenage hormones and tried not to think too much about it but, now, she knew it was more than that. Adam was hot and hung and she wanted his cock.

Courtney started masturbating a few times a day, with or without Adam’s laptop. She’d masturbate in the shower, in the stalls in the bathroom of her high school, and most often on her brother’s bed. She loved the thrill of rubbing her bare body against his sheets, knuckle deep in her cunt, both knowing and hoping that at any moment he could catch her.

Even when she wasn’t masturbating or watching porn, Courtney spent as much time as she could in Adam’s room. She loved undressing in front of his mirror, admiring herself as she seductively practiced the removal of both her bra and thong. Sometimes she would bend over his dresser and, using the end of his hairbrush, fuck her pussy from behind and pretend it was Adam’s dick.

Courtney knew her little virgin body ached for a good hard fuck from Adam so she secretly devised a plan to get it. `

****

Adam was never blind to how beautifully his little sister had developed. Every morning she’d come bouncing down the stairs bra-less in a tight little white tee to have breakfast. Her nipples, probably chilled from having left the warmth of her bed, poked right out through the fabric. At first, Adam tried to overt his gaze, staring at literally everything except his sister. But as the days and weeks dragged on Adam couldn’t help but look and even started to welcome the morning cock tease. Sometimes he would venture up to his room after breakfast and masturbate to the thought of what was poorly hidden under that white tee . Adam knew it was wrong but those perfect tits were too good not to think about.

He also wasn’t blind to his little sister’s new favorite past time. He figured she was up to something when he came home day after day to a browser history full of porn. The thought of his little sister rubbing her small pink virgin pussy while her breasts bounced as she writhed with pleasure was more than he could take. Over and over Adam tried to push the thoughts from his mind, uncomfortable with how aroused thoughts of his sister masturbating made him.

But he couldn’t fight it.

Not that day anyway.

As usual Adam arrived home just after 4 pm. He kicked off his shoes and threw his bag on the floor near the couch. After heading to the kitchen for a quick snack, he climbed the stairs to his bedroom and flopped on his bed.

Adam loved the two hour block of silence that fell over the house as his mom, an ER nurse, left for work, and his dad, a lawyer, sat in traffic on the way home. Sure his sister was home by now, but she usually stayed in her room texting or putting on make up or whatever sixteen-year-old girls did. It was the perfect alone time and, like any twenty-year-old guy, Adam knew exactly how he wanted to spend it.

He grabbed his laptop from the side of his bed and opened it, eager to envelop himself in his porn collection for the next two hours. The desktop loaded in record time but there, in the middle of the screen was a new folder, titled, “Untitled”. Thinking it was probably some of the porn Courtney had downloaded last night Adam fervently doubled clicked it. He couldn’t wait to see what nasty things his little sister had watched this week.

But, there was only one video in the folder. It too was titled, “Untitled”. Now even more curious than before, Adam quickly opened it too.

Courtney’s face and two luscious tits crammed into a little red bra filled the screen.

“Hey Adam” she whispered, biting her bottom lip, “I know you’ve been watching me at breakfast. You like the way they bounce, huh?” Her small hands slowly slid over her juicy breasts. She grinned, squeezing them between her fingertips and gently bouncing them with her palms.

Adam’s mouth watered as he clasped the edges of his laptop. Already he could feel his hard cock pressing against his jeans. “What the fuck was Courtney doing?” He knew it was wrong to keep watching but he couldn’t look away. Her sweet little body that had teased him for all these months now had him paralyzed.

Courtney licked her full red lips. “Bet you’d like to see to see the real thing”. Her hands slipped behind her back and within seconds that small red bra was falling to the floor, finally revealing her full round tits. Two small pink nipples now stood hard and firm, pointing straight out at him.

“Yummy”, she smiled as she licked her finger and began playing with her nipple.

Adam couldn’t watch anymore even though he so badly wanted to. His cock ached for her. What the fuck Courtney? This was so wrong. This was so bad. Why did he need his sister like this? Why would she do this to him?

He closed the laptop and jumped off the bed. Adam raced out of his bedroom and down the hall to Courtney’s room.

“Find my video?” She asked, as he burst into the room.

The same flirty grin marked her face as she stood there, topless, her ass falling out of lace boy shorts, brushing her hair.

“Find your video?!? What are you doing making something like that?!?” He shouted back at her.

Courtney turned her back to him and set the brush down on her vanity. She seductively bent over and slipped her thumbs under the sides of her panties. Slowly she pulled them down over her hips and around her plump ass. She glided them down past her thighs and along her calves, all the way to the floor. Her thin arms then gripped the edge of the vanity.

“You know you want me, Adam”, she said, peering over her shoulder.

Courtney’s small pink pussy and great ass were now completely naked and in full view. Her large breasts with their perky rosy nipples could also be seen in the reflection of the vanity mirror.

Adam stared hungrily. His cock throbbed viciously in his pants. He couldn’t be good. He didn’t want to be good. He needed her tight body. He needed her tight pussy. He needed to teach her a lesson.

Adam unzipped his jeans and pulled down his boxers. He grabbed his long thick cock and let his hands slip up and down as he continued to stare at Courtney’s pussy that was now dripping with excitement.

“You want my big dick, little sister? Well now you’re gonna get it.”

Adam walked over to her, taking her fat little ass in his hands. He kneaded her cheeks with his fingers while letting his cock hang between her thighs and tease her pussy lips. Her skin was unbelievably smooth and he could smell the lavender of her shampoo. Adam imagined how crazy she must have made all the boys at school when she bent over in gym class, brushed up against them in the hallway, or just let her thong peek out the top of her jeans in class. She had teased them just as she had teased him; except now, it was he who was going to show her what happens to dirty cock teases.

“I am going to have fun with you, you little cum slut.”

Courtney giggled breathlessly.

“You think that’s funny?” Adam asked. “Well, I’ll show you funny.”

He clutched her hips and rammed his cock between her wet lips and deep inside her. She cried out in pain. Her little virgin pussy gripped his dick hard. Adam slid his cock out and then forced it inside her again, deeper than before.

“You like that little sis? Does big brother satisfy you?”

“YES! YES!” She moaned.

Adam slipped in and out of her small cunt faster and faster. He pumped Courtney’s pussy hard as her chubby ass bounced against his hips. Courtney could feel an indescribable pleasure course through her body. With each thrust she swore Adam’s thick cock would split her in two. Cum dripped down her thighs and she cried out louder.

“Come here”, Adam said, pulling his cock out. He laid down on the edge of her bed, letting his legs hang off the sides. Courtney instinctively climbed on top and straddled his pelvis. The bulbous head of his dick just barely grazed her clit. Adam reached out slipped his hands around her waist, eyeing her flat stomach and flawless curves.

“Down”, he whispered firmly. Adam pushed down on her waist and again his throbbing cock drove into her little pussy. Courtney whimpered a bit as his thick member struggled to fit all the way inside. She furiously began sliding up and down, trying to stuff it completely in. Her succulent tits bounced wildly and Adam sat up just enough to get one of those hard nipples in his mouth. He sucked her tit hungrily and smacked her ass. Once more he grabbed her hips and pulled her down on his dick ferociously. His sister’s pussy felt so good around him. He needed more and more.

The two siblings continued to fiercely fuck. Adam’s grip got tighter and tighter as Courtney’s pussy bounced harder and harder. Her clit ached as she came over and over again. She loved being Adam’s sex toy and her taut body writhed with pleasure.

“You’re going to swallow my cum, my slutty little sister”, Adam told her.

He pulled her off and Courtney enthusiastically fell to her knees. Adam stuck his cock into her warm wet mouth. It felt incredible against her tongue as she eagerly licked the shaft waiting for his semen. After a few minutes of watching her bob up and down on his dick, Adam shot his big hot load down her throat. Like a little porn whore she lapped it all up.

“What’s going on here??!?”, boomed a familiar voice from the doorway, shattering the house’s silence. Both Adam and Courtney stopped dead in their tracks and their heads whipped around to face the voice.

“Daddy”, Courtney whispered from the floor, Adam’s cum covering her lips.