It started with a simple text from my sister. "Parents are gone for the weekend. Come over and chill." I knew what that meant. We'd been sneaking around for months, ever since she turned eighteen and moved back home after college. I drove over fast, my cock already half hard thinking about her tight body.
The door opened and there she was, wearing nothing but a thin tank top and panties. Her nipples poked through the fabric. "Took you long enough, big brother," she said, pulling me inside. She didn't waste time. Her hand went straight to my crotch, squeezing my dick through my jeans. "Fuck, you're already hard for me."
I grabbed her ass and yanked her close. "You know I am. That pussy been wet waiting for my cock?" She moaned and nodded, rubbing against me. We didn't make it to the bedroom. I pushed her down on the living room couch, yanked her panties off, and spread her legs. Her cunt was shaved smooth and glistening. I dropped to my knees and buried my face in it, licking her clit hard and fast the way she likes.
She grabbed my hair and ground against my mouth. "Eat that pussy, brother. Fuck yes, just like that." I tongue-fucked her hole, tasting how soaked she was, then sucked her clit until her thighs shook. She came quick, flooding my mouth with her juices. "Goddamn, you taste good," I growled, standing up and stripping.
My cock sprang free, thick and veiny. She reached for it immediately, stroking it with both hands. "Shove this in me. I want it raw." I flipped her onto her stomach, pulled her hips up, and slammed into her from behind. Her cunt gripped me tight, hot and slick. I fucked her hard, skin slapping, balls hitting her ass with every thrust.
"Harder, fuck me harder," she begged. I pounded her deep, one hand reaching around to rub her clit. She pushed back on my dick, taking every inch. "Your cock feels so much better than any other guy. Fill your sister up." I slapped her ass and kept going, sweat dripping down my chest. She came again, screaming into the couch cushions, her pussy pulsing around me.
I pulled out and flipped her over, shoving back in while I sucked on her tits. Her legs wrapped around me as I drilled her. "Gonna cum in you," I warned. She dug her nails into my back. "Do it. Breed your little sister." That pushed me over. I buried myself balls deep and unloaded, pumping thick ropes of cum straight into her cunt.
We didn't stop there.
She sucked me hard again right after, licking our mixed juices off my shaft. Then she climbed on top and rode me, tits bouncing, telling me how she touched herself thinking about this all week. I came twice more that night, once down her throat and once with her bent over the kitchen table.
By morning we were still at it, slow and dirty in the shower, my cock sliding in and out of her cum-filled pussy while hot water ran over us. "We can't tell anyone," she whispered as I came inside her again. "This is our secret." I kissed her hard. "Our filthy fucking secret." We spent the whole weekend using each other, raw and relentless, until the parents came home and we had to pretend again. But we both knew we'd be back at it the next chance we got.
