i had a drunken encounter with a woman who i believe is a prostitute. there was unprotected oral sex, but my main concern with this forum was with the intercourse. i had saran wrap on my penis (lame, i know) and was only penetrating her for about 5-10mins. i'm pretty sure no semen was released on my part, as i could barely keep it up. there was also slight anal intercourse but this was very very minimal and i had the saran wrap on. in short, i don't think there was any skin on skin contact with my penis and her vagina/anus. am i at a high risk here? how much raw skin/fluid exposure does there need to be in unprotected sex for there to be a legitimate concern for hiv?