The front door slammed shut behind him. Mark stood in the hallway, sweat-soaked from the long drive, eyes locked on his younger sister. Lisa was twenty-two now, but she still wore those tiny shorts that barely covered her ass. She turned from the kitchen counter, startled.
"Mark? What the fuck are you doing here?"
He didn't answer with words. He crossed the room in three strides, grabbed her by the hair, and yanked her head back. "You knew I'd come back. You left that message on purpose."
Her breath hitched, but she didn't pull away. "I was drunk. I didn't mean—"
"Shut up." He spun her around and bent her over the counter. Her shorts ripped down her thighs with one hard tug. No panties. Her cunt was already slick. He shoved two fingers inside her without warning, pumping hard. "This is what you wanted, isn't it? Your big brother's cock ruining you again."
Lisa moaned, pushing back against his hand. "Fuck, yes. Do it rough. Like last time."
Mark freed his cock, thick and already leaking. He spat on it once and drove straight into her. No slow entry. He slammed to the hilt in one thrust, balls slapping her clit. Lisa cried out, gripping the edge of the counter. He fucked her like he hated her, hips snapping, the wet slap of skin filling the kitchen. Each thrust forced a grunt from her throat.
"Take it, little sister. Take every inch like the slut you are." He reached under, pinched her nipples hard through her tank top, twisting until she whimpered. His free hand cracked across her ass, leaving a red handprint. "You begged for this in that text. Said you couldn't stop thinking about my dick wrecking your hole."
She came fast, cunt clamping down, juices running down her thighs. Mark didn't slow.
He pulled out, flipped her onto the counter, and shoved back in. Her legs wrapped around him as he pounded deeper, the counter creaking under them. Sweat dripped from his chest onto her tits. He leaned down and bit her neck hard enough to mark.
"More," she gasped. "Hurt me with it."
He obliged, pulling her hair again, forcing her head to the side so he could suck bruises into her throat while his cock battered her cervix. When he felt her tighten again, he pulled out and dragged her to the floor. On her knees now, she sucked him greedily, gagging as he fucked her throat raw. Spit and pre-cum ran down her chin onto her tits.
Mark hauled her up, bent her over the couch, and took her ass this time. Slow at first to open her, then brutal, driving balls-deep while she clawed the cushions. "This hole's mine too. Always was." He reached around and rubbed her clit in rough circles until she screamed through another orgasm, body shaking.
They moved to the bedroom after that. He fucked her on the bed, on the floor, against the wall. Doggy, missionary with her legs pinned back, riding him while he slapped her tits. Every position was rough, verbal, filthy. "Cum on your brother's cock, you dirty incest whore." "Fill your sister's cunt." He came inside her twice, thick loads leaking out around his shaft, then made her lick him clean before starting again.
By the third round Lisa was hoarse from moaning. Mark pinned her wrists above her head, fucking her with long, punishing strokes. "You're not telling anyone. This stays between us. You come when I say, you spread when I want."
She nodded, eyes glassy with lust. "Yes. Yours."
He finished deep again, grinding against her as his cock pulsed. They lay tangled afterward, breathing hard, his cum still dripping from her. Mark kissed the bite marks on her shoulder, softer now but still possessive.
"Next time I'm not waiting for a drunk text," he said.
Lisa smiled against his chest. "Good. I won't need one."
