About this:

You have been cursed into a girl, along with a very unnerving punishment, when any type of animal, beast, alien, etc, consume you from the waist down, it'll be seamless, and your lower half is their entire body, and you will have it.

You had an argument with a powerful witch, so for punishment... she turns you into a girl, and curses you. "Whenever you consumed from the waist down by any type of creature, that'll be your lower half, could be anything that swallows your lower half!"