I never planned on fucking my sister. It just happened one sticky summer night when our parents were out of town and the AC broke. We were both twenty-two, home from college, drinking cheap beer on the couch in nothing but underwear because it was too damn hot for clothes.
She looked at me with those big brown eyes and said, "Remember when we used to wrestle as kids?" Her voice was low, teasing. I did remember. I also remembered how her body had changed since then, all curves and soft skin.
"Still think you can pin me?" I shot back, raw and direct.
She climbed on top of me without another word. Her tits pressed against my chest, nipples hard through her thin bra. My cock got hard instantly, pressing up against her panties. She ground down on it, slow and filthy. "Feels like you want this," she whispered.
I grabbed her ass with both hands and squeezed hard. "Fuck yes I do."
We didn't talk much after that. She yanked my boxers down and wrapped her hand around my dick, stroking it rough and fast. "Big brother cock," she muttered, half laughing, half moaning. "Always knew it would be thick."
I pushed her panties aside and slid two fingers straight into her pussy. She was soaked, dripping down my knuckles. "Little sister's cunt is fucking dripping for me," I growled. She bucked against my hand, riding my fingers while she jerked me off harder.
We didn't bother with the bedroom. I flipped her onto her back on the living room floor and shoved her legs apart. Her pussy was shaved smooth, lips pink and swollen. I buried my face between her thighs and licked her like I was starving. She tasted sweet and dirty at the same time. She grabbed my hair and ground her clit against my tongue, cursing. "Eat that pussy, you fucking pervert. Tongue-fuck your sister."
I did. I sucked her clit, fucked her with my tongue, and slid a finger into her ass for good measure. She came hard, thighs shaking around my head, juices all over my chin.
She wasn't done. She pushed me onto my back and straddled me, lining my cock up with her entrance. "Gonna ride you raw," she said, and sank down in one smooth motion. Her pussy was tight and hot, gripping me all the way to the balls. We both groaned like animals.
She bounced on my dick like she was in a porn video, tits bouncing, ass slapping against my thighs. I reached up and pinched her nipples hard. "Take it, sis. Take every inch of your brother's cock." She moaned louder, slamming down faster. Sweat ran down her stomach. The wet sound of her pussy swallowing my dick filled the room.
I flipped her over onto all fours and mounted her from behind. No mercy. I slammed into her hard, balls slapping against her clit with every thrust. She pushed back, meeting every stroke. "Harder," she begged. "Fuck me like you mean it. Pound that incest pussy."
I grabbed her hips and gave her exactly what she wanted, pounding deep and fast until she screamed into the carpet. Her pussy clenched around me when she came again. I didn't stop. I kept fucking her through it, then pulled out and flipped her onto her back again.
I straddled her chest and fed my cock into her mouth. She sucked greedily, tasting her own cum on me. I fucked her face, shallow at first, then deeper until she gagged. Spit ran down her chin. "Good girl," I grunted. "Suck your brother's dick." She moaned around it, eyes watering, and I knew I was close.
I pulled out and jerked off over her tits. Thick ropes of cum splattered across her skin, marking her. She rubbed it in with her fingers, then licked them clean while staring at me.
We didn't stop there. Round two happened in the shower, her bent over the sink while I fucked her ass with just spit for lube. Round three was on her bed, slow and grinding, her riding me reverse cowgirl so I could watch my cock disappear into her pussy over and over. We talked filthy the whole time. "You like fucking your sister?" "Love it. Best pussy I've ever had." "Gonna fill you up again." "Do it. Breed me, big brother."
By morning we were sore, sticky, and grinning like idiots. We knew it was wrong. We also knew we weren't stopping. The house was ours for another week, and every room was fair game.
We spent the next days turning the place into our own private porn set. Kitchen counter, garage, even the backyard at night. She let me record a couple videos on my phone, close-ups of my cock stretching her open, her begging for cum. We watched them together afterward, getting turned on all over again.
It wasn't romantic. It was raw, sweaty, and exactly what we both needed. Two adults who knew the line and stepped over it anyway because it felt too fucking good.
When our parents came home, we went back to acting normal in front of them. But every time we passed each other in the hall, we'd exchange that look.
The one that said "later." And later always came.
That's how it started. That's how it stayed. Incest sex porn stories aren't just online anymore. They're our real life, and neither of us wants it to end.
