The house was quiet except for the wet sounds coming from the living room couch. Jake had his sister Emily bent over the armrest, her shorts around her ankles and his cock slamming into her tight pussy from behind.
"Fuck, bro, harder," Emily moaned, pushing back against him. Her tits bounced with every thrust. "Mom's not home yet, fill me up."
Jake gripped her hips and pounded deeper, his balls slapping her ass. "You love your brother's dick, don't you? Such a slut for family cock."
They didn't hear the front door open. Their mom, Lisa, walked in carrying groceries and froze at the sight. Her son was balls-deep in her daughter. Instead of yelling, she set the bags down slowly, her nipples hardening under her blouse.
"Well, well," Lisa said, voice low and thick. "My kids couldn't wait for me."
Emily looked up, face flushed, but didn't pull away. Jake kept thrusting, slower now. "Mom… you want in?"
Lisa stripped right there, dropping her clothes to reveal heavy tits and a shaved pussy already glistening. "Both of you. On the floor. Now."
They moved fast. Jake pulled out of his sister and lay back. Emily straddled his face while Lisa sank down on his cock. The room filled with moans as Lisa rode him hard, her juices coating his shaft.
"That's it, son," Lisa growled, grinding down. "Fuck your mommy's cunt. Emily, sit on his face and let him eat that pussy we made."
Emily rocked on Jake's tongue, her brother's mouth sucking her clit while their mom bounced on his dick. Lisa leaned forward and kissed Emily deep, tongues sliding, hands grabbing each other's tits.
"Switch," Lisa ordered after a few minutes. She got on all fours and spread her ass. "Jake, fuck my ass. Emily, get under me and lick my pussy while he does it."
Jake spat on his mom's asshole and pushed in, stretching her tight hole. Emily lay beneath, tongue flicking Lisa's clit and Jake's balls as he fucked their mother's ass raw.
Lisa came first, screaming and squirting on her daughter's face.
They kept going for hours. Jake came in his mom's ass, then his sister's mouth, then watched them sixty-nine while he recovered. Lisa sucked him hard again and guided him into Emily's pussy while she sat on Emily's face.
By the time they finished, the three of them were sweaty, covered in cum and spit, tangled on the floor. Lisa pulled her kids close.
"From now on," she said, "we fuck as a family. No more sneaking around."
Emily grinned and reached for Jake's cock again. "Deal, Mom."
