I never planned to fuck my sister. But once it started, there was no stopping the filthy shit we did to each other.
It was a hot summer night when she showed up at my apartment after a fight with her boyfriend. Lena was twenty-three, same as me, and she looked wrecked in the best way—tight tank top clinging to her tits, short shorts riding up her thick thighs. We’d always been close, too close, but that night the air felt different.
She cracked open a bottle of whiskey and we sat on the couch talking shit about her ex. The more she drank, the closer she scooted. Her bare leg pressed against mine. I could smell her skin, that sweet vanilla lotion she always wore mixed with sweat. My cock started getting hard just from the heat of her thigh.
“You ever think about it?” she asked suddenly, voice low and dirty. “Us. Doing something we shouldn’t.”
I stared at her. “You’re my sister, Lena.”
“And you’re hard right now,” she said, reaching over and squeezing my dick through my jeans. “Don’t lie.”
That was all it took. I grabbed her by the hair and kissed her hard, tongue shoving into her mouth like I owned it. She moaned and climbed onto my lap, grinding her pussy against my cock. I yanked her tank top down and sucked on her nipples, biting them until she gasped. Her shorts were soaked when I shoved my hand inside them. Two fingers slid right into her tight cunt.
“Fuck, you’re dripping for your brother,” I growled.
She rode my fingers, whimpering. “I’ve wanted this for years. Make me your slut.”
I flipped her onto the couch, ripped those shorts off, and buried my face between her legs. Her pussy tasted sweet and dirty at the same time. I licked her clit fast and rough while she grabbed my hair and humped my mouth. When she came she screamed my name, thighs shaking around my head.
I stood up, dropped my jeans, and slapped my cock against her wet slit. “You want this dick inside you?”
“Yes. Fuck me. Fuck your sister.”
I slammed into her in one thrust. She was so fucking tight it made my head spin. I pounded her hard, balls slapping her ass, the couch creaking under us. Her tits bounced with every thrust. I called her every filthy name I could think of—my whore sister, my cumdump—and she begged for more.
We didn’t stop there. I pulled out, flipped her over, and fucked her from behind while I fingered her asshole. She pushed back against me like she couldn’t get enough.
When I finally came, I pulled out and shot thick ropes across her ass and lower back, marking her.
We fucked three more times that night. On the floor. In the shower. With her riding me reverse cowgirl so I could watch my cock disappear into her pussy. By morning we were sore, covered in sweat and cum, and already planning the next time.
Lena still comes over every week now. Sometimes we pretend it’s wrong. Sometimes we don’t pretend at all. We just get nasty—raw, loud, and exactly what we both need. She’s my sister, and she’s the best fuck I’ve ever had.
