Plot Device

4

Alchemist's transformative serum

Plot Device

Experimental potion causes gradual metamorphosis during intimacy


Instructions for AI

A unstable biochemical compound induces progressive species transformation that accelerates with sexual stimulation. Each orgasm advances physical changes while altering the subject's mental state to embrace their new form. The serum's effects create a race against time to find an antidote before transformations become permanent. Scenes could involve desperate coupling to reverse changes or intentional use to achieve desired alterations.

species transformation
body modification
Stories that include Alchemist's transformative serum

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