Sam is Fascinated

Sam’s breath hitched as she took the first unsteady step forward, her thighs still slick and trembling from before. His Step brother watched on quiet, unsure of what to do, unusual for him, and his often cocky attitude.

"Fuck," Sam whispered, her voice rough. Her fingers twitched at her sides before lifting, trembling, toward the swollen heat in front of her. The air between them crackled as her fingertips grazed the leaking tip, a featherlight touch that sent a violent shudder through Danny’s body.

The moment Sam’s fingers brushed Danny’s swollen length, his cock jerked violently in response, twitching against her palm as if electrified. A thick bead of pre-cum welled up at the flushed tip, glistening obscenely before dripping onto her wrist. Her breath slowee, as her fingers instinctively tightened around him, her thumb swiping through the slick mess with a slow, experimental stroke. Danny’s hips bucked forward involuntarily, a ragged groan tearing from his throat as the sensation burned through him. This was not what he thought would happen at all.

Sam’s breath hitched again as her own pathetic little nub twitched, straining upward in a feeble attempt at stiffness. It barely reached an inch, dribbling a thin string of pre-cum onto her trembling leg. Danny’s stepbrother let out a choked noise,as he stared down at his own shriveled excuse for a cock, his fingers twitching uselessly at his sides. The contrast was obscene, Danny’s monstrous length, thick and throbbing, dwarfing their useless little stubs. His mother watched on in amazement at the scene.

Sam’s hands trembled as she cupped her full breasts, pressing them together around Danny’s throbbing length with a breathy whimper. The heat of him seared her soft flesh, his cock twitching violently between her cleavage as a fresh rope of pre-cum smeared across her collarbone.

"So big.." she gasped, her hips jerking uselessly as her pathetic nub strained toward nothing. Her tits squeezed tighter, slick with sweat and spit as she dragged them up his shaft, her nipples stiffening against his veined underside. Danny’s stepbrother made a strangled noise, his own useless stub flexing in the air as he watched, transfixed, he still couldn't speak, his whole world had been upended, as he'd done to Danny before.

Danny’s breath came in ragged gasps as his cock pulsed between Sam’s tits, her **** whimpers vibrating against his slick flesh. His mother’s fingers dug into her own thighs, her skirt hiked up as she watched, transfixed, working on her own new tiny penis. His stepbrother finally found his voice, a strangled,

"Fuck you!"" escaping before he lunged forward, hands outstretched like he could reclaim what was stolen. But the before he even got close, his own shriveled nub gave a pathetic spurt, dribbling clear fluid onto the carpet.

Danny barely had time to react before his own cock pulsed violently, the swollen head throbbing. A choked gasp tore from his throat as his hips jerked forward uncontrollably, his entire length twitching like a live wire between her breasts. "FUCK, IM SORRY SAM!" He grunted loudly, as his seed erupted up and into her face.

Sam snapped out of her daze with a wet gasp, Danny's hot release still dripping down her chin. Her hands flew to her face, smearing the sticky mess across her cheeks as her tiny nub twitched pathetically between her thighs. "The fuck!"

Danny's stepbrother watched helpessly, his own useless dribble trailing down his leg as his face twisted in rage.

"You ... bastard" he choked out, voice cracking. Danny’s mother moaned softly from the corner, her fingers still working at her own shriveled length, eyes glazed as she watched her son’s monstrous cock twitch, still half-hard.

Sam’s fingers twitched where they had been smearing Danny’s cum across her flushed skin. Her gaze darted to the notepad lying discarded on the floor, its pages slightly curled at the edges. A sharp, breathless curiosity flared in her chest, coming to her senses for the first time in hours, she realised, the notepad did this.

She lunged for it, her knees scraping against the carpet as her tiny, useless nub throbbed pathetically between her thighs. The moment her fingers brushed the leather cover, Danny’s stepbrother let out a garbled shout, stumbling forward, but too late. Sam flipped it open with trembling hands, the pen still wedged in the spiral binding.

Her fingers tightened around the pen, remembering all the times Dannys step brother fucked her, knuckles white as she scrawled a single, feverish line: "Danny’s stepbrother should know exactly how that feels."

The air seemed to thicken the moment the ink dried. A choked gasp escaped the stepbrother’s lips as his thighs trembled violently. His tiny, limp nub twitched, once, twice,before his entire body convulsed. His back arched off the floor as his cock vanished completely, a small opening taking its place. His gasped as his chest ballooned out, and his black hair grew long, his hips widening.

He could only gasp as his body twisted under the notepad’s curse, His hips rolled instinctively, his breath hitching as his new slit throbbed with unfamiliar heat. His hands, now smaller, delicate,fluttered to his chest, squeezing the swollen mounds that had erupted from his once-flat torso.

When the changed finished, Dannys step sister looked up at Danny, with a smile....