The house was quiet when Jake came home from college, but he knew it wouldn't stay that way. At twenty, he was home for the summer, and his nineteen-year-old sister Lisa was already there, lounging in the living room in nothing but a tiny tank top and shorts. Their mom, Diane, forty-five and still hot as hell, had been sending him texts all week about how much she missed having her "big boy" around.
Jake dropped his bag and walked straight to the couch. Lisa looked up and smirked. "Mom's been waiting for you. She's in the bedroom. Said we should all 'catch up' together tonight."
No one pretended anymore. Jake had fucked his mom last summer, and Lisa had walked in on them and joined. Now it was just how the family worked when no one else was around.
He went down the hall and pushed open the bedroom door. Diane was on the bed, legs spread, fingering her shaved pussy. "Get over here and put that cock in me," she said the second she saw him. "I've been wet all day thinking about my son stretching me out again."
Jake stripped fast. His dick was already hard. He climbed on the bed and shoved it straight into his mom's cunt. She groaned loud and grabbed his ass, pulling him deeper. "That's it, fuck your mother. Fuck me like you mean it."
Lisa walked in a minute later, naked now, and climbed up beside them. "Don't forget about me," she said, pushing her tits toward Jake's mouth. He sucked one nipple while he kept pounding Diane's pussy. The wet sounds filled the room.
Diane reached over and started rubbing her daughter's clit. "Come here, baby. Sit on Mommy's face while your brother fucks me."
Lisa swung her leg over and lowered her pussy onto Diane's mouth. Jake watched his mom lick his sister's slit while he drove his cock in and out of the same pussy that had made them both. It was filthy and perfect. Lisa moaned and ground down, riding Diane's tongue.
After a while Diane pushed them both off. "My turn to watch. Jake, fuck your sister. I want to see that cock disappear in her."
Lisa got on all fours. Jake moved behind her and slammed into her tight cunt in one thrust. She cried out and pushed back against him. Diane sat against the headboard, legs open, fingering herself while she watched her son fuck her daughter.
"Harder," Diane ordered. "Make her scream."
Jake grabbed Lisa's hips and pounded her. The bed shook. Lisa's tits swung under her. She reached back and rubbed her own clit until she came, clenching around Jake's cock. He didn't stop. He kept fucking her through it.
Diane crawled over and lay under Lisa so she could suck on her daughter's nipples while Jake kept thrusting. "Fill her up," Diane said. "Pump your cum into your sister's pussy."
Jake groaned and let go, shooting deep inside Lisa. When he pulled out, Diane shoved her face between Lisa's legs and started licking the cum out of her daughter's cunt. Lisa moaned again and pushed back against her mom's tongue.
They switched positions all night.
Jake fucked his mom while Lisa sat on her face. Lisa rode Jake while Diane sucked his balls. At one point Diane had both of them on their knees in front of her, taking turns sucking his cock and then licking Diane's pussy together.
By morning they were all sticky and sore, sprawled across the bed. Diane kissed Jake's forehead. "Welcome home, baby. We're not done yet."
Lisa grinned and reached for his cock again. "Round two after breakfast?"
Jake just nodded. This was going to be a long summer.
