My last bf had them, and I didnt notice until I was giving him head and stopped and stared at his beautiful penis for a minute. I didn't think anything of it, you can tell its just raised bumps doesnt look like an std, its not like you have a big collyflower thing made of genital warts ... that would be something that would send a clean bitch running for the hills. Dont let it get you down.
If your that worried about it ... just dont get head, during sex no one would ever notice. you could even say that you dont like getting head because it seems degrading or some shit. good luck with that