You have begged the fae to worship the ass of a witch.
The fire witch, annoyed by your constant pleas has decided to appear to you and grant your wish.
She appears in the woods, beautiful with long flowing red hair, a big ass and round tits. The curse is implemented.

But, your persistence has angered her so, that she decides to turn you into a toilet. Not only her toilet but a public toilet. Your mouth shall be the receptacle to receive the waste of humanity forever. You shall be reincarnated after this life into the next as nothing more than a cold, filthy toilet.