Yeah dude, I've had it years before having sex. Even the damn scars.
I wasn't conscious of it at all though. You see, I had sex with my girlfriend of 7 months (on Monday) in the dark. I guess now thinking back on it, it did help "disguising" the "evidence." But not only do I have them on my ass, but I got them all over and around my thighs. My girlfriend does know about them. We're close enough to share everything. She's simply just concerned with my health. She just wants me to get it checked and dealt with but it's not priority number 1 if you know what I mean.
If sex is on your mind, let me just leave you with some advice, DO NOT go sticking your jimmy in just anybody. Yeah, everyone says "have fun, you're young." But at least for the first time, let it be right with someone you truly care about and who cares about you. I'm in so love with my girlfriend and it's such an overwhelming feeling to look back and say "my first time was with her"