Mom had just finished reading another filthy incest story out loud when Dad grabbed her by the hips and bent her over the kitchen table. "That's the one that always gets you wet, isn't it?" he growled, yanking her shorts down. Her pussy was already dripping, and he shoved two thick fingers straight into her without any warm-up.
"Yeah, fuck, keep going," Mom moaned, spreading her legs wider. "Read the part where the son fucks his mom while the daughter watches."
I was sitting on the couch with my sister Lisa, both of us naked already, my cock rock-hard in her hand. We had been stroking each other slowly while Mom read, but now things were heating up fast. Lisa leaned over and whispered, "I want you to fuck me just like that story, right here where they can see."
Dad pulled his fingers out of Mom and slammed his cock into her in one rough thrust. The wet slap echoed through the room. Mom grunted and pushed back against him, tits mashed against the wood. "Harder, baby. Make it nasty like the stories."
Lisa climbed onto my lap facing me, grabbed my cock, and sank down on it in one smooth motion. Her cunt was tight and hot, gripping me all the way to the balls. "Fuck, yes," she hissed. "Fill your sister up." She started riding me hard, bouncing so her ass cheeks slapped against my thighs.
Mom turned her head to watch us while Dad pounded her from behind. "Look at them," she panted. "Our kids fucking just like in the stories. Isn't that hot as hell?"
Dad reached around and rubbed Mom's clit while he fucked her. "Tell them what you want next."
Mom's voice came out ragged. "I want my son to fuck me while my daughter sits on my face. I want to taste her pussy while he slams into me."
Lisa moaned loud at that and ground down harder on my cock.

"Hear that, brother? Mom wants your dick. You gonna give it to her?"
I lifted Lisa off me, my cock shiny with her juices, and walked over to the table. Mom straightened up just enough for me to slide underneath her. She climbed on top, lined my cock up with her soaked pussy, and dropped down. "Oh shit, yes," she groaned as I stretched her open. "Bigger than your father's."
Dad moved behind her, spread her ass cheeks, and pushed his cock into her asshole. Mom screamed in pleasure as we double-fucked her, her body shaking between us. Lisa climbed onto the table, straddled Mom's face, and lowered her dripping cunt onto Mom's mouth. Mom started licking and sucking immediately, tongue working Lisa's clit while Dad and I kept pounding her holes.
The room filled with wet sounds and filthy talk. "Fuck your mom's ass," Lisa ordered Dad. "Make her come on her son's cock."
Mom's pussy clenched tight around me as she came, her moans muffled by Lisa's cunt. Dad followed right after, grunting as he pumped cum deep in Mom's ass. I held out as long as I could, then shot my load straight into Mom's pussy while she kept licking Lisa to her own orgasm.
We didn't stop there. After we caught our breath, Lisa wanted Dad's cock while Mom and I watched and touched each other. Then Mom wanted to see me fuck Lisa again, this time with her sucking my balls while I thrust. Every position we tried came straight from the stories Mom loved reading out loud. By the end of the night we were all sticky with cum and sweat, sprawled across the living room, already planning which story we'd act out next.
Mom smiled, cum still leaking from her pussy and ass. "Nothing beats living the stories we love."