I've been worried about a recent encounter I had with a sex worker. We had a mouth-to-mouth kiss and there was probably some saliva exchanged. I also licked her breasts a couple of times, but there was no lactation. I haven't had any dental problems either, so I'm just wondering if there's any chance I could contract HIV from this situation. There wasn't any other sexual contact, like oral, vaginal, or anal sex involved. Could you shed some light on this for me?