The house was quiet except for the heavy breathing coming from the living room. Mom had just pulled her nightgown over her head and stood there naked, tits heavy and nipples hard, staring at me and my sister. Dad was already stroking his thick cock on the couch, eyes locked on my sister's shaved pussy as she spread her legs on the rug.
"Get over here and suck your father's dick, baby," Mom said to my sister, her voice low and filthy. My sister crawled over without hesitation, wrapping her lips around Dad's shaft and taking him deep. I watched her throat bulge as she gagged on it, spit running down her chin.
Mom turned to me. "You too, son. Get that cock out and fuck your mother." She bent over the arm of the couch, ass up, pussy already glistening. I stepped behind her, lined up my hard dick, and slammed it straight into her wet cunt in one thrust. She moaned loud and pushed back, taking every inch.
Dad grabbed my sister's hair and fucked her face harder while he watched me pound Mom. "That's it, fuck her good. Fill that pussy up." My sister's hand was between her own legs, rubbing her clit fast as she slurped on Dad's balls.
Mom's pussy squeezed tight around my cock. "Harder, fuck me harder like you always wanted to." I grabbed her hips and drove into her, balls slapping against her ass with every stroke. The wet sounds filled the room. Across from us, Dad pulled my sister up and bent her over the coffee table, shoving his cock into her from behind. She cried out, "Yes Daddy, stretch my tight cunt!"
We switched soon after. Mom dropped to her knees and sucked my cock clean of her own juices while Dad fucked my sister on the floor. My sister looked up at me, eyes glassy. "Come here and let me taste your cock too, brother." I moved over, feeding my dick into her mouth while Dad kept pounding her pussy.
Mom crawled behind Dad and licked his ass, tongue working deep while he groaned.
The night got messier fast. Dad pulled out of my sister and told me to fuck her next. I slid into her soaked hole, feeling how stretched she was from his cock. Mom climbed onto Dad's lap and rode him reverse, tits bouncing as she watched me rail my sister. "Look at your kids fucking each other," she said to Dad. "Our dirty little family."
My sister came first, screaming and squirting around my cock. I didn't stop. I kept slamming into her until I felt my balls tighten. "I'm gonna cum in you," I warned. She pushed back. "Do it, fill your sister's pussy." I unloaded deep inside her, pumping rope after rope of hot cum.
Dad wasn't far behind. He flipped Mom onto her back and fucked her hard until he pulled out and sprayed thick loads across her tits and stomach. My sister leaned down and licked it up, then kissed Mom, sharing the cum between them.
We didn't stop there. After a short break with drinks and more touching, Mom had me lie down so she could sit on my face while my sister rode my cock again. Dad fucked my sister's ass while she bounced on me, the two of us double-teaming her until she came again. Mom ground her pussy on my tongue, soaking my face as she came hard.
By the end of the night we were all covered in sweat and cum. Mom and my sister lay side by side on the rug, legs spread, while Dad and I took turns fucking their used holes and shooting the last loads into whichever cunt we wanted. When we finally collapsed, Mom smiled and said, "Same time next weekend. Full family only."
My sister just laughed and licked a stray drop of cum from her lip.
