>>88531
>>88532
It develops at puberty, just like the penis does. The labia are hidden until a few years before menarche when estrogen begins to increase to prepare the early stages of sexual development. Friction has no effect whatsoever, except on the asshole which is made of completely different tissues and muscles. The vagina itself adapts to penetration but if a woman goes without sex or penetrative masturbation for a while it actually reverts back to being frigid and painfully closed. Childbirth is the only thing that can hypothetically have a permanent effect on the labia’s appearance and vaginal tightness, but these days there are procedures done to prevent those changes from sticking around. The very fact that wives, long term girlfriends, and porn stars do not have blown out labia dangling to their knees should be proof enough of this. It’s actually more common for the labia to be on the wider, thicker side than it is for them to hang in the loose “roastie” way as well, due to the fact that the labia’s purpose is to enclose and protect the clitoris and urethra which prevents infection. This is very basic anatomy and the fact that you believe r9k hearsay over what has been formally established in human biology tells me you were in the retard classes in high school and definitely didn’t go to college. I doubt you’ll even believe me despite this being easily searchable online and readily available in dumbed down retardspeak, because a lot of people here, for some reason, actually get off on the idea of sex ruining women.

t. medfag