I walked in the door after a long shift and heard the unmistakable sounds coming from the living room. Moans, wet slapping, and my dad's deep voice growling "Suck it harder, baby girl." My cock was instantly hard in my jeans. I knew exactly what was happening. Our family had been fucking like this for months, ever since my sister turned eighteen and admitted she wanted dick and pussy in the same bed.
I stepped into the room and saw it all. Mom was on her back on the big sectional, legs spread wide, while my sister licked her shaved cunt like she was starving. Dad was behind my sister, pounding her tight ass with his thick cock, balls slapping against her. Everyone was naked, sweaty, and lost in it.
"Fuck, look who's home," Dad said, not missing a stroke. "Get your clothes off and join us, son. Your sister's pussy is dripping for you."
I stripped fast. My cock sprang free, already leaking. I walked over and knelt behind my sister, lining up with her soaked hole while Dad kept fucking her ass. I shoved in deep in one thrust. She moaned into Mom's cunt, her walls clenching around me.
"That's it, fill her up," Mom panted, grinding on my sister's tongue. "Both my kids in the same hole. So fucking nasty."
Dad and I found a rhythm, double-stuffing my sister. Her ass and pussy stretched around us, juices running down her thighs. I reached under and rubbed her clit hard and fast the way she liked. She came screaming into Mom's pussy, shaking and squirting around our cocks.
Dad pulled out first. "Your turn to taste it," he said, grabbing the back of my head and pushing my face between my sister's cheeks. I licked her gaping asshole, tasting his cum and her ass, then moved down to suck her swollen clit while she kept eating Mom.
Mom came hard, flooding my sister's mouth. "Get over here and fuck your mother," she ordered me.
I climbed on top of her. She was soaking wet and hot. I slammed into her married cunt while Dad fed his cock into my sister's mouth. We switched positions every few minutes. Mom rode my face while my sister sat on my cock. Dad fucked Mom's ass while I fucked her pussy at the same time. My sister sat on Dad's face and made out with Mom above him.
The whole room smelled like sex. Sweat, cum, and pussy. We kept going for over an hour. I came first, pumping a huge load deep in my sister's cunt while she begged for it. Dad followed, shooting across Mom's tits and my sister's tongue. Mom came last, grinding on my sister's face until she squirted again.
We collapsed in a sweaty pile, still touching and kissing. My sister reached over and stroked my softening cock. "Round two after we shower?" she asked with a filthy grin.
Dad laughed. "Your brother and I aren't done with either of you yet."
Mom just smiled and spread her legs again. "Family that fucks together stays together."
We didn't stop until the sun came up.
