Before you can think of anything to do with the latex ass, you feel a stirring in your bowels and hear a rumbling in your gut. For a moment you ignore it, but then feel it again and realize what your body is telling you: you have to use the toilet.
You look over the donkey ass attached to your backside again. Luckily, it seems to have pushed your pants and underpants down as it formed, but you're still worried. Will it work? If you try to poop through it, will it come out or will it get stuck inside? The thought of being stuck with a donkey ass AND a human ass underneath coated with feces is almost too disgusting. Then, with another rumble, you realize that it doesn't matter. You've got to go to the bathroom and you're going to, whether or not it works.
Rushing to the toilet with lightning speed, you try to sit on it only to find that it won't accommodate the shape of your new ass. You try to think, but there's no time - you've got to go NOW. Without a second thought, you just stand turned away from the toilet and try your best to aim at it as you feel a bowel movement the likes of which you could only have imagined before. You hear loud farting noises as you spray feces all over the toilet behind you, but can't help but feel relieved even despite the mess that the stuff actually came out. It's not until you turn around that your relief turns into terror.
Looking your your toilet, you don't see a trace of feces. What you DO see is that your once pristine porcelain toilet is now covered with a thick layer of purple latex, apparently the same substance that now covered your own ass.