About 6 weeks ago I was fooling around with a guy. I was lying on my side and he proceeded to rub the tip of his penis against the lips of my vagina. I was very wet so I'm' sure he felt my wetness get on his tip but he never inserted his penis in me at all. He rubbed his tip against me for less than a minute, a minute tops before we stopped. I'm just worried that this could spread HIV? he made it clear he was STD free but I'm still worried.
1) having unprotected vaginal or anal sex, OR
2) sharing intravenous drug equipment with another intravenous drug user.
If you don't do either of those things, you will never be at risk for HIV. A penis rubbing a vagina is no risk, no matter what.