The Offer - Cover

The Offer

Copyright© 2026 by Tharnoren

Chapter 47

Incest Sex Story: Chapter 47 - 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  

The blindfold was gone. The light still stung his eyes.

“What? I— I ... I thought—”

Rebecah was laughing. A sharp, open laugh that shook her chest. She hadn’t stopped moving. Her hips rolled over him, slow and exact, as if the surprise were nothing more than an amusing detail. Her cunt clenched around him on every descent, hot, already far too slick. Alan felt his own sentence break apart in his throat.

Beside them, Madison started laughing too.

Not loud. A breath first. Then a real laugh, a little too high, a little too nervous, eyes bright. She’d clapped her hand to her mouth, too late. Alan turned his head toward her, stunned.

“M-Madi ... not you. I actually thought—”

He never finished.

Rebecah dropped onto him all at once, deeper. A raw groan tore out of him, involuntary, humiliating. He tried to frown, to hold his sister’s gaze, to make her understand this wasn’t funny, that it had really gotten him. But his hips were already betraying him. He lifted to meet her. Without deciding to. Rebecah’s rhythm had already slid into his.

She leaned in a little, palms flat on his chest, breath short, a smile still stuck to her mouth.

“You really thought I was going to rob you of a moment like this with your sister ... I’m not a monster.”

She sharpened one stroke. Another. Lower. Tighter.

“Don’t worry. She’ll be next after me ... but first I fully intend to take my pleasure on that thick cock of yours.”

The last words broke on a moan. She arched, back bowed, and took him farther still. Alan felt the end of her. Hot. Tight. Too good. His hands fisted in the sheets. He was already panting, his gaze still locked on Madison in spite of himself.

Rebecah turned her head toward her, voice frayed from the effort.

“Sweetheart ... climb on your brother. Give him your cunt.”

Madison’s cheeks were already hollowed. She was biting her lower lip hard enough for the skin to go white. She was looking at him—him, buried in someone else, stomach clenched, mouth open. Something flickered through her eyes. Impatience. And something murkier still: a brief, clean spike of jealousy she didn’t have time to hide.

She seized it.

She climbed onto the bed without hesitation. The mattress dipped. Alan watched her come, startled, still too deep in Rebecah’s body to really react. Their eyes met. One second only. Just enough.

Madison knelt over his face.

Before she even lowered herself, Alan opened his mouth. Stuck out his tongue. Offered it.

He was waiting for her.

She sat down.

Gently. Just enough not to crush him. Her thighs were already shaking.

Alan’s first moan vibrated straight against her. A low, muffled sound that shot through her lower belly like a jolt. His tongue was already there. Broad. Starving. It pushed in without searching, as if it knew exactly where to go. Madison opened her mouth, soundless at first. Then a breath escaped her, short, startled.

She hadn’t expected it to hit this hard.

She rolled her hips. Forward and back. Slowly. Her cunt slid over his mouth, over his tongue, over the bridge of his nose. Every pass left a wet thread. She felt all of it. The heat. The spit. The way he opened her, the way he licked deeper with every stroke.

And his eyes.

They never left her.

Rebecah sped up below. The slap of her ass against Alan’s hips filled the room, steady, filthy. She was taking him hard now. No holding back. Alan was still moaning against Madison, the sound broken by the rhythm, but he didn’t look away. Not for a second. He was pulling from somewhere. From whatever he had left. To stay on her. Only her.

Madison brought a hand to her mouth. Too late. A moan slipped through anyway, muffled against her palm. It was too good. She could see it in his eyes. He had two bodies on him. Two cunts. And he only had eyes for her.

Rebecah panted, voice already wrecked: “Y—you two look like you’re having fun...”

She didn’t stop. Her hips kept going. Faster. Deeper.

“Madi, baby ... tell me what you’re feeling. You like your little brother’s mouth?”

Madison breathed out. She didn’t take her eyes off Alan. Her voice came out small. Shy. Almost ashamed to have to say it out loud.

“Y—yes ... Yes, fuck...”

Rebecah laughed, a short, breathless laugh.

“Your little protégé ... your own blood ... What’s it like? Aren’t you ashamed to have his tongue stuffed up that tight little cunt of yours?”

Madison moaned. Caught off guard. The question had hit her sideways, too raw, too accurate. She opened her mouth to answer. Nothing came.

Alan hadn’t missed a thing.

He changed. His tongue left her inside, climbed, found her clit. Just the tip. Precise. Relentless. As if he wanted to reassure her. Or push her further. Both, maybe.

Madison leaned forward. Her hands planted on either side of his head. She locked her gaze into his. Close enough to see exactly what he was doing.

She spoke to Rebecah without looking at her.

“No ... I ... I’m not ashamed. I love it.”

Pleasure snagged her voice. She clenched her teeth, then let go.

“Hmmm ... his tongue ... is perfect right where it is...”

Rebecah hadn’t said a word in a while.

She twisted suddenly on Alan’s cock. A violent spasm. Then another. Her cry tore through the room, high, uncontrolled, too loud for the bedroom. Her body shook. Alan was still fucking into her, short, deep thrusts of his hips, as if he couldn’t stop even now.

It was Madison’s answer that had pushed her over. That voice. That “I’m not ashamed.” Those two gazes locked on each other while she was nothing more than a body coming on him. Too much. Far too much.

She pulled off all at once, breathless, legs weak. A viscous string still linked her cunt to Alan’s cock before it snapped. She moved aside, spent, her face still wrecked from the orgasm.

Below, they hadn’t moved.

Alan could have stayed there all night. His tongue was still working, stubborn, as if Rebecah no longer existed. Madison was moaning above him, thighs shaking, her gaze still lost in his.

“Madison.”

Rebecah’s voice was raw. A little broken.

“Turn around.”

“Huh...?”

 
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