I think it's a weird genetic thing. I have no body hair, at least not visible hair, and never did.
My soon to be husband actually asked me if it hurt as bad as he had heard it did to be "waxed".
Nope, sorry. I have no idea. I've never so much as shaved. My mother's the same way. My sister has to shave (guess she took after dad). One of her girlfriends had to teach her to shave as my poor mother didn't know how to.
I got the lousy teeth (what's left of them) from mom's side of the family, and assuming dad is my biological father (there's some question there that will never be answered, and both dad and the other man have been dead for many years--dad is the guy who acknowledged me and raised me as his own, so it doesnt' really matter), I got the boobs from his side of the family.