Definitely pubic hair. The juxtaposition against silky spandex is highly erotic. I've never understood the fascination with having an entirely smooth body like a pre-adolescent boy.
UGH. I wish I could shave my pubes. My body is very hairy and shaving my pubes would look out of place with the rest of my body...and I'm not going to shave my whole body. So, I do a lot of manscaping and leave it at that.