Jake slammed the door behind him, the video on his phone still playing in his head. His wife, that lying slut, bent over his best friend's couch with her ass spread and moaning like a whore while she took another man's cock. Months of lies. All those "late nights at work." Revenge burned hot in his gut, but he wasn't going to cry or yell. He wanted something dirtier, something that would wreck her when she found out.
He drove straight to his sister's place. Mia lived alone since her own divorce last year. She opened the door in a tight tank top and shorts, her big tits pushing against the fabric, nipples already poking out. At 28 she looked better than ever, same dark hair and full lips as their mom but with a body built for sin.
"You look pissed," she said, letting him in. "What's up?"
Jake didn't waste time. He showed her the video. Mia watched, eyes wide, then smirked. "That bitch. Always knew she was trash. What are you gonna do?"
"Fuck you," he said flat out. "Right now. Hard. Make her find out I buried my cock in my own sister's pussy and came inside her."
Mia's breath caught, but she didn't slap him. Instead she stepped closer, hand rubbing over the bulge in his jeans. "Dirty bastard. You want incest revenge? Let's make it filthy."
She dropped to her knees right there in the living room. Her fingers yanked his zipper down and pulled out his thick cock. It was already rock hard, veins pulsing. Mia licked the head slow, tasting the precum, then sucked him deep into her hot mouth. Jake groaned and grabbed her hair, fucking her face in short thrusts. She gagged but took it, drool running down her chin onto her tits.
"Get it sloppy," he growled. "My cheating wife never sucked like this."
Mia pulled off, strings of spit connecting her lips to his cock. "Bet she didn't let you fuck her ass either." She stood, peeled off her shorts and bent over the arm of the couch, spreading her cheeks. Her shaved pussy glistened, and her tight asshole winked at him.
Jake spit on her hole and pushed two fingers in, working her open while he rubbed his cock along her wet slit. "You want your brother's dick in your ass for revenge?"
"Yes," she moaned. "Shove it in. Make it hurt so good."
He lined up and thrust. Her ass was tight, gripping every inch as he sank balls deep in one go. Mia cried out, pushing back against him. He started pounding, the slap of skin loud and nasty. Each stroke stretched her, his cock coated in spit and her juices. He reached around and rubbed her clit hard, making her pussy drip down her thighs.
"Fuck, Jake, harder," she begged. "Use my ass like your personal cumdump. Tell me how you're gonna send her pictures."
He slammed deeper, balls slapping her pussy. "Gonna video my cock stretching your asshole and text it to her. Let her know I came in my sister's guts because she spread her legs for my friend."
Mia came first, her ass clenching around him, body shaking as she squirted a little onto the floor. Jake didn't stop. He flipped her onto her back on the couch, lifted her legs over his shoulders, and drove back into her pussy this time. It was even wetter, hot and slick. He fucked her missionary, deep and grinding, their faces inches apart.
"Look at me while I breed you," he ordered.

"My sister. My dirty incest slut."
She wrapped her legs around him and clawed his back. "Fill me up. Pump that load in my cunt so I can sit on her face and make her taste it."
The dirty talk pushed him over. Jake buried himself to the hilt and exploded, thick ropes of cum flooding her pussy. He kept thrusting through it, pushing his seed deeper while she milked him with her walls. When he finally pulled out, cum leaked out of her swollen slit and ran down to her asshole.
They weren't done. Mia sucked him clean, then climbed on top and rode him reverse cowgirl, bouncing on his cock until he got hard again. This time he took her ass once more, slower but deeper, fingering her cum-filled pussy at the same time. She came twice more before he unloaded a second load inside her ass.
Later, sweaty and spent, they lay tangled on the couch. Jake grabbed his phone and recorded a short clip of Mia's wrecked holes leaking his cum. He typed a message to his wife: "Your turn to watch. Incest tastes better than your cheating pussy."
Mia kissed his neck. "Round three in the shower?"
Jake grinned. "All night. Revenge is gonna be long and nasty."