Sarah had been married three years and bored for two. Her husband Tom worked late, came home tired, and fucked her like it was a chore. Quick missionary, a few grunts, and done. She started noticing the new guy next door on her morning runs. Tall, dark-skinned, built like he lifted heavy shit for a living. His name was Marcus. She caught him watching her ass in those tight leggings one day and smiled instead of looking away.
One Friday night Tom was out of town again. Sarah had a couple glasses of wine and decided to borrow sugar she didn’t need. She knocked on Marcus’s door in a thin tank top and shorts with no bra. He opened it shirtless, sweat still on his chest from a workout.
“You need something?” he asked, eyes dropping straight to her hard nipples.
“Thought I’d say hi properly,” she said, stepping inside without waiting.
He didn’t waste time with small talk.

Marcus grabbed her by the waist, spun her around, and pressed her against the wall. His mouth was on her neck, teeth scraping skin while his big hands slid under her tank top and squeezed her tits hard. Sarah moaned and reached down. His cock was already thick and heavy in his shorts, way bigger than Tom’s.
“Fuck, you’re married,” he muttered against her ear.
“Shut up and fuck me anyway,” she answered, yanking his shorts down.
His cock sprang out, long, veined, and dark. Sarah dropped to her knees right there in the hallway and wrapped both hands around it. She licked the head, tasting salt, then opened wide and took as much as she could. Marcus groaned and grabbed her hair, fucking her mouth in steady thrusts. Spit ran down her chin onto her tits. She gagged but kept going, hungry for it.
He pulled her up, ripped her shorts and panties off in one move, and bent her over the back of his couch. Sarah spread her legs and arched her back. Marcus rubbed the fat head of his cock up and down her wet slit, then pushed in slow. She was tight and he was thick. Inch by inch he stretched her open until his balls pressed against her ass.
“Goddamn, that white pussy is gripping me,” he growled.
He started fucking her hard. Skin slapped loud in the quiet house. Sarah pushed back, meeting every thrust. His cock hit places her husband never reached. She came fast, legs shaking, pussy clenching around him. Marcus didn’t stop. He kept pounding, one hand on her hip, the other reaching around to rub her clit.
“Tell me you want this black dick,” he ordered.
“I want it,” she gasped. “Fuck me harder. Cheat on my husband with that cock.”
He flipped her onto her back on the couch, lifted her legs over his shoulders, and sank back in deep. The contrast of his dark skin against her pale thighs looked filthy and hot. He fucked her through another orgasm, sweat dripping off him onto her stomach. When he was close he pulled out, stroked his cock fast, and shot thick ropes across her tits and belly.
They didn’t stop there. Marcus carried her to his bedroom and fucked her again, this time with her riding him, grinding down until she took every inch. She came so hard she nearly blacked out. He flipped her onto all fours and took her from behind again, pulling her hair and slapping her ass until it was red.
By morning Sarah’s phone was full of missed calls from Tom. She ignored them. Marcus was still asleep, his heavy cock resting against her thigh. She woke him up with her mouth, sucking him slow and dirty until he filled her throat. Then she rode him one more time before sneaking back home, cum still leaking down her leg.
She showered but the smell of him stayed on her skin. That weekend she went back three more times. Each time Marcus used her rougher, talking filthy about how her husband couldn’t fuck her like this. Sarah stopped pretending she felt guilty. She just wanted more of that big black cock stretching her married pussy raw.
When Tom came home Sunday night she let him fuck her in the dark. It felt like nothing compared to what she’d had next door. She closed her eyes and thought about Marcus bending her over again. She already knew she’d be knocking on his door the next time her husband left town.