Becoming one with Mel (Cock TF route : warning weird fetish ahead)

It was a devious idea and John was glad he thought of it. It wasn't enough to simply claim Melanie as his own, he wanted to use her to help him corrupt the rest of the world.

He grinned snapping his fingers as he began to pump harder into her bouncing her against the wall He felt the sensations as she tightened around him a mix of water and slime flying between them

As Melanie's transformation began to happen. She kissed him her legs pushing up gently rubbing against his thighs somehow it felt like her entire body was on fire.

She didn't know why but somehow the whole experience was just surreally amazing for her.

She'd never thought of her brother this way before, but now as he bounced her in his lap she couldn't imagine him any other way. She could feel the fire in her loins a sensation like her entire was melting.

John grit his teeth enjoying the sensation of the flesh changing between them. As his little sister's legs came in contact they were already shrinking up into her body her lower body was melting and her shapely rear was slowly swelling becoming softer and less trained with every bounce. John felt his own biology shift as his sister's bloodstream connected to his own. He'd always been into the strangest things, but turning someone into a cock.

This was a new level of perversion but one he couldn't be happier to indulge with. As he kissed Melanie he watched her body's shape change. The slight curve was being replaced by a fat tubular shape. Her legs were swelling as bones and muscles transformed into soft tissue giving John the largest testes in the human race. He gripped her hands relishing as they disappeared into the her chest her body becoming darker as all of its features smoothed over. He watched as her hair began to disappear not so much fall out as fade away leaving a bald top. Her eyes went wide as she finally started to realise what was happening but was already too late. She pulled back from his kiss only to find her voice was gone, all she could do was dribble her eyes growing droopy as pleasure began to overwhelm her fear. Objectively she knew what was happening, but it mattered less and less as her brother wrapped his arms around his enormous shaft. Her eyes began to disappear closing for the last time as her mouth began to move upwards transforming into a leaking slit.

John was completely enraptured by the change he could still feel her mind, the very essence of what made Melanie the person being molded by the sensations of her new body. The enormous pleasure was burning out both their brains and it was only a matter of time before he showered in a different kind.

With a mighty groan he felt himself losing control. A gigantic spurt of semen practically covering him his own generous juices. He'd really done it, now the only question was what was next?