Marcus slammed the door behind him after another late shift at the warehouse. At 24, he was built thick from lifting, his dark skin glistening with sweat under the dim apartment lights. His little sister, 21-year-old Tasha, was already on the couch in nothing but a thin tank top and panties, her full curves on display like she didn't give a damn who saw.
"Damn, Tasha, put some clothes on," he muttered, but his eyes locked on her heavy tits and thick thighs.
She smirked, spreading her legs just enough. "Why? You been staring at this ass since we moved in together. Mom and Dad ain't here no more. It's just us."
Marcus felt his dick twitch hard in his jeans. They had been dancing around this shit for months, the forbidden heat between Black siblings who knew better but couldn't stop wanting it. He dropped his bag and stepped closer.
"Fuck it," he growled. "You want it raw? I'm giving it to you."
Tasha stood up, peeling off her tank top. Her dark nipples were already stiff. "Yeah, big brother. Show me that cock you've been hiding."
He yanked his pants down. His thick, veiny dick sprang free, heavy and black, already leaking precum. Tasha dropped to her knees without hesitation, wrapping her full lips around the head and sucking hard. She took him deep, gagging as she worked his shaft with her tongue, spit dripping down her chin onto her tits.
"Shit, suck that dick," Marcus groaned, grabbing her head and fucking her mouth. "Been dreaming about this nasty shit."
She pulled off, strings of saliva connecting them. "Taste good, don't it? Now fuck your sister's pussy."
He pulled her up, spun her around, and bent her over the couch. Yanking her panties aside, he rubbed his fat cockhead against her soaked slit. She was dripping wet already. With one hard thrust, he buried himself balls-deep in her tight cunt.
"Fuck yes!" Tasha screamed, pushing back against him. "Pound that black pussy, Marcus. Fuck me like you mean it."
He gripped her wide hips and slammed into her, the wet slapping sounds filling the room. Her ass jiggled with every thrust, her walls gripping him tight. He reached around and rubbed her swollen clit, making her moan louder.
"Take it all, sis," he snarled. "This incest dick feels too good, don't it? You been wanting your brother's cum in you."
Tasha pushed back harder. "Give it to me. Fill my pussy up. I don't care if it's wrong."
Marcus flipped her onto her back on the couch, spreading her legs wide. He drove back in, watching his dark cock disappear into her glistening folds. Sweat poured off both of them. He leaned down and sucked one of her nipples hard while pounding her relentlessly.
Their bodies slapped together, raw and filthy.
Tasha clawed at his back. "Harder, fuck me harder! Make your little sister cum on that dick."
He pounded her through her first orgasm, her pussy spasming and squirting around him. Then he pulled out, flipped her again, and shoved back in from behind, deeper this time. He spanked her ass red while railing her.
"Gonna nut in you," he warned, voice rough. "Gonna breed this forbidden pussy."
"Do it," she begged. "Cum in me, big brother. Fill me up with that hot load."
Marcus roared as he exploded, pumping thick ropes of cum deep inside her. He kept thrusting through it, pushing his seed as far as it would go. Tasha came again, shaking and moaning.
They collapsed on the couch, his cock still twitching inside her. But it wasn't over. Tasha reached back and stroked his balls, keeping him hard.
"Round two," she whispered. "Eat my pussy first. Taste your cum in me."
Marcus pulled out and dropped to his knees, burying his face between her thighs. He licked and sucked her cum-filled cunt, tongue fucking her while she ground on his face. Then he flipped her and had her ride his cock reverse, watching her ass bounce as she took every inch.
They fucked for hours like that—raw, sweaty, loud, and completely shameless. Brother and sister breaking every rule, bodies locked together in the hottest, dirtiest way. When they finally passed out tangled on the floor, cum leaking from her well-used pussy, they both knew this was just the start of their secret.
The next morning, Tasha woke him with her mouth on his dick again, and Marcus knew their black incest sex stories were only getting started.
