The living room lights were low, just the glow from the big-screen TV flickering across four naked bodies. Mom had started it, like she always did when the twins came home from college.
She dropped to her knees in front of Dad first, sucking his thick cock with loud, wet sounds while she looked straight at me and my sister.
"Get over here, both of you," she said, pulling off with strings of spit hanging from her lips. "It's time you two stopped pretending you don't want this."
My sister Lisa was already wet. I could see it glistening on her shaved pussy as she crawled across the carpet toward Dad. I followed, my own cock rock-hard and swinging. Dad grabbed Lisa by the hair and fed her his dick while Mom turned to me, wrapping her soft hand around my shaft.
"Fuck, your cock tastes just like your father's," Mom moaned, taking me deep into her throat. She gagged once, then pushed further, nose pressed to my stomach. Lisa was making the same sloppy noises on Dad, her ass up in the air, cheeks spread so we could all see her tight little hole winking.
Dad pulled out of Lisa's mouth and slapped his wet cock against her face. "On the couch, both of you. Side by side." We obeyed. Lisa and I bent over the back of the sofa, asses presented. Mom moved behind me and started licking my balls while Dad lined up behind Lisa.
He drove into her in one hard thrust. Lisa screamed, a mix of pain and pleasure, as Dad started pounding her. The wet slap of skin filled the room. Mom switched to my ass, tongue pushing inside me while she stroked my cock. "You like watching your sister get fucked by your daddy?" she asked between licks.
"Yes," I growled. "Fuck her harder."
Dad did. He grabbed Lisa's hips and slammed into her so the couch rocked. Her tits swung under her, nipples dragging on the cushions. Mom stood up, spit on my asshole, and pressed two fingers inside while she kept jerking me. "Your turn, baby boy."
She guided my cock into Lisa's mouth. My sister sucked me greedily while Dad kept railing her from behind. The position was filthyme standing, feeding my sister my dick, Dad fucking her pussy inches away. Mom climbed onto the couch and straddled Lisa's back, facing me, then pulled my face into her big tits. I sucked her nipples hard while she reached down and rubbed Lisa's clit.
"Switch," Dad ordered after a few minutes. He pulled out of Lisa with a wet sound and shoved his cock, shiny with my sister's juices, straight into Mom's mouth. Mom moaned around it, tasting her own daughter. I moved behind Mom, spread her ass, and sank into her dripping cunt in one stroke. She was tighter than I expected, hot and pulsing around me.
Lisa crawled underneath Mom in a 69, licking Mom's clit and my balls at the same time while Dad throat-fucked Mom from above. The sounds were obscenegagging, slurping, skin slapping. Mom came first, her pussy clamping down on my cock as Lisa sucked her clit. She screamed around Dad's dick, body shaking.
Dad pulled out and flipped Mom onto her back on the floor. "Ride your mother," he told me. I dropped down and slid back inside her. Lisa straddled Mom's face, lowering her soaked pussy onto Mom's tongue. Dad moved behind Lisa, spread her cheeks, and pushed his cock into her ass. Lisa howled, but she pushed back, taking every inch.
We fucked like that for what felt like hours. I pounded Mom's pussy while Dad wrecked Lisa's ass above me. Lisa came hard, squirting all over Mom's face. Mom licked it up greedily. Then Dad pulled out and told us to switch again.
He laid on his back. Lisa mounted him, taking his cock in her pussy this time. Mom pushed me down beside him and straddled my face, smothering me with her wet cunt while she leaned forward to kiss Lisa. I licked Mom's clit and asshole while she and Lisa made out sloppily above me. Dad reached over and grabbed my cock, stroking it a few times before guiding it back into Mom when she lifted up.
The four of us moved together, a tangle of limbs and sweat. Mom and Lisa came again, almost together, their moans mixing. Dad grunted and flooded Lisa's pussy, cum leaking out around his shaft. I followed seconds later, pumping load after load into Mom while she clenched around me.
We didn't stop there. After a short break with everyone panting on the floor, Mom had us switch partners again. This time Dad fucked my sister missionary while I took Mom from behind, her ass red from my hands. Then Lisa rode my face while Mom sucked both Dad and me, alternating between our cocks until we both came on her tits.
By the time we finally collapsed, the carpet was soaked, bodies sticky with sweat and cum. Mom pulled Lisa and me close, kissing us both deeply, tasting everything on our tongues. Dad just grinned, already half-hard again.
"Same time next weekend," Mom said, voice hoarse. "Next time we bring the toys."
None of us argued.
