Mark slammed the door behind him, the image of his wife Lisa riding her own brother still burned into his brain. He’d walked in on them that afternoon, her moans echoing as that bastard pumped her from behind. Lisa had begged, but Mark wasn’t listening.

He wanted payback, and he wanted it dirty.
He texted his sister Jenna right away. “Come over. Now. Bring that tight ass.” Jenna was two years younger, always game for anything filthy, and she showed up twenty minutes later in a short skirt and no panties, just like he liked.
Lisa was still in the bedroom when Jenna walked in. Mark grabbed his sister by the hair and kissed her hard, tongue deep, hands squeezing her tits through her top. “Strip,” he ordered. Jenna grinned and peeled off her clothes, dropping to her knees to suck his cock while Lisa watched from the doorway, eyes wide.
“Mark, what the fuck—” Lisa started, but he cut her off.
“Shut up and watch, slut. You fucked your brother, now I’m fucking mine. Get even.” He pushed Jenna onto the bed, spread her legs, and buried his face in her shaved pussy, licking and sucking her clit until she was dripping and begging. “Fuck me, big brother. Give it to me raw.”
Mark slammed into Jenna’s wet cunt in one thrust, pounding her hard while staring at Lisa. “You like that? Your husband balls-deep in his sister’s pussy because you couldn’t keep your legs closed.” Jenna moaned louder, grinding back on him, her juices coating his shaft. He flipped her onto all fours and rammed her ass, stretching her tight hole with every stroke, slapping her cheeks red.
Lisa’s hand slipped between her legs despite herself. Mark noticed and yanked her onto the bed. “You want in on this incest party? Suck your husband’s cock after it’s been in my sister’s ass.” Lisa hesitated, then opened her mouth and took him deep, tasting Jenna’s ass and pussy on his dick. Jenna crawled behind Lisa and started eating her out, tongue fucking her cheating cunt while Mark face-fucked his wife.
The room filled with wet sounds and filthy talk. “That’s it, lick your wife’s pussy while I watch,” Mark growled. He pulled out and shoved his cock into Lisa’s ass without warning, making her scream into Jenna’s snatch. Jenna fingered herself, coming hard and squirting on Lisa’s face.
Mark switched back to Jenna, fucking her missionary so Lisa could see every inch disappearing into his sister. “Tell her how good my cock feels in your family pussy,” he demanded. Jenna moaned, “So fucking good, brother. Stretch me. Cum in me.” Lisa rubbed her clit faster, watching the taboo display.
When Mark was close, he pulled out and painted both women’s faces with thick ropes of cum, making them lick it off each other. Lisa swallowed what she could, then Mark pushed her down to clean Jenna’s creampie-filled pussy with her tongue. The three of them kept going for hours—Mark taking turns pounding sister and wife, forcing more incestuous combinations until everyone was spent and sticky.
By morning, Lisa lay between them, marked and used. Mark lit a cigarette and smiled. “We’re even. But next time you cheat, it’s a full family reunion.” Jenna just laughed and reached for his cock again.