Responses

In all on honesty. Anything over 8 inch will cause discomfort for both male and female. You don't wanna hit the colon. That shit will hurt. Nor perforate the small intestine, all this belly bulging is just for funnies. That stuff doesn't and shouldn't happen in real life.
If it does, you need to seek medical help. Something got torn/ruptured.
irl I have never met over 6 inches tho rip these bottoms