The Offer
Copyright© 2026 by Tharnoren
Chapter 28
Incest Sex Story: Chapter 28 - College siblings Alan and Madison meet wealthy, provocative Rebecah at a wild night out. Her shocking offer—for them to indulge her taboo fantasy for cash—pulls them into a spiral of seduction, blackmail, and forbidden intimacy they can’t escape.
Caution: This Incest Sex Story contains strong sexual content, including Ma/Fa Blackmail Coercion Consensual Romantic Heterosexual Fiction Incest Brother Sister Humiliation Light Bond Rough Group Sex Anal Sex Analingus Cream Pie Facial Masturbation Oral Sex Spitting Slow Violence Illustrated
Alan positioned himself behind her, his heart pounding heavily in her chest. Rebecah was on all fours on the bed, back arched high, the plug still lodged deep inside her, glistening under the room’s soft, dim lighting.
He rested one hand on her hip, the other gripping the base of the plug, and pulled it out slowly, his excitement bordering on feral. The plug slid free with a wet, obscene little pop. Rebecah released a long, shaky sigh—part relief, part eager anticipation.
Alan didn’t hesitate for even a second.
He pressed the swollen, glistening head of his cock against the slightly parted ring of her asshole and began pushing forward, gentle at first. Rebecah moaned right away, a throaty sound where pain tangled with pleasure from the very start.
“Fuck ... Alan ... you’re way too big...” she gasped, her voice hoarse and cracked.
He was far too aroused to truly hold back. The vise-like tightness of her ass gripped him almost painfully, a scorching, intense pressure throbbing around his cockhead, but he wasn’t thinking about that.
He sank in inch by inch, jaw locked tight, fingers digging hard into the soft flesh of her hips.
“Easy...”
Rebecah panted, nearly begging.
“Slower, Alan ... please...”
He barely registered her words. Instead, he started making tiny, shallow thrusts, just enough to stretch her open, to coax her body into accepting his thickness. Rebecah’s ass was perfect—round, firm, and plush—and every small movement tore louder, needier moans from her throat.
Fuck, this feels incredible ... Her perfect ass, those slutty little whimpers ... And then, suddenly, he remembered the hidden microphone tucked behind the stack of books, still recording everything. Shit ... whatever. In a flash of ice-cold, vengeful clarity, he recalled exactly what a conniving bitch this girl was. How she’d been holding him and Madison by the throat for weeks.
And right now, she was right there beneath him. Completely at his mercy. Without any warning, he rammed his entire cock into her in one vicious thrust, burying himself to the hilt. Rebecah screamed. A raw, gut-wrenching cry that filled the room.
Alan didn’t pause. He instantly clamped a hand over her mouth, smothering the sound, and began pounding into her ass with savage force.
His hips slammed against her cheeks with unrestrained violence.
He fucked her like he meant to wreck her, each powerful stroke deep, brutal, and merciless.
He was in heaven. He was destroying her.
For the first time in far too long, he was finally seizing back control.
Alan withdrew his cock, then gripped her ass cheeks and spread them wide apart, exposing her reddened, dilated asshole that was still twitching and pulsing around the empty void he’d left behind. He spat on it—a thick, heavy strand of saliva that slowly trickled down between her spread cheeks.
“You slut...” he murmured, his voice low and dark, almost surprised by how rough it sounded. Without asking permission, he flipped her onto her back with a sharp yank. Rebecah went limp, letting him move her like a broken ragdoll.
He shoved her legs apart, bent them back, and positioned them exactly the way he wanted. She was utterly exposed. He felt like the master of a body he could use however he pleased.
He pressed the head of his cock against her still-gaping entrance and drove inside her with one brutal thrust. Rebecah jerked violently, a raw cry tearing from her throat. But she didn’t protest. She started moving with him again, moaning shamelessly, her fingers clawing desperately at the sheets as if clinging to them so she wouldn’t completely lose her mind.
Alan was brutal. Merciless. He pounded her with his full length, deep, punishing strokes that speared into her ass with overwhelming force. Each violent thrust made his hips crash against her cheeks and shoved her body up the mattress.
He fucked her like he wanted to punish her, like he was finally taking back everything she’d stolen from him. When he felt his orgasm surging up, unstoppable, he leaned even further over her, burying himself to the hilt. One hand slid up to her throat. He didn’t really choke her, but he held her with firm, possessive pressure—just enough for her to feel completely owned. Rebecah moaned nonstop, her whole body jolting with every savage thrust.
Then he came inside her. He didn’t slow down for a second. He kept slamming into her hard and deep while thick, powerful jets of cum flooded her ass, filling her wrecked hole until it overflowed.
He came long and violently, growling against her neck as he emptied himself completely. Finally, he yanked his cock out in one rough motion. Rebecah’s asshole stayed wide open, thick white cum slowly leaking out and running down between her cheeks onto the sheets.
She lay there limp and trembling, struggling to catch her breath.
Without a word, Alan stood up, quickly pulled on his boxer briefs and pants, and left the bedroom. In the living room, he headed straight for the low bookshelf. With a discreet, almost casual motion, he retrieved the device from behind the stack of books.
He checked it: the recording was still running, capturing every sound from the very beginning. A cold smile stretched across his lips. He pressed stop, turned the device off, and slipped it into his pocket.
He cleared his throat lightly, then called out in a calm, almost neutral voice from the living room: “ ... You okay, Rebecah...?”
He knew exactly what he had just done to her. He had brutally fucked her ass without holding back, and the thought made him laugh darkly inside—a low, victorious laugh that he kept to himself. From the bedroom, Rebecah’s voice reached him, weak and breathless: “Yeah ... yeah...” Alan dropped onto the couch, legs stretched out, one arm draped over the backrest.
A few minutes later, Rebecah appeared in the living room.
She walked slowly, almost limping. Her cheeks were still flushed, her hair a mess, and she shot him a strange look—half surprised, half unsettled.