After Twilight and Starlight attempt to create an intelligence growth spell from scratch, they unwittingly unleash a magical plague upon Ponyville which gradually saps its victims of intelligence, morphing their bodies in the process. The only one with any sort of resistance is Spike, but how long until he too succumbs to it?

The main fetishes include: Brain drain, bimbofication, ass, cock, and breast expansion, feminization, and more! Fetishes unique to each chapter will be posted in the chapter titles.

All characters are 18+.

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