ive never seen one w a belly button tht pops out ..,
There's a ligament in your belly button that goes down to your crotch. It's left over from when you removed waste through the umbilical cord.innie. also its weirdly incredibly sensitive??? like idk what it is but theres a nerve thats like.. when its touched theres this sharp weird feeling in my spine?? idk what it is. my friend ryan is apparently the same way so i guess thats a thing. hes also an innie so idk if outies get that or not, thatd suck tho since its yknow... out there... and not shielded in any way