Dear Doc, my question is like this. 15 years ago, when I was 13. I played games to mimic adult life with my male classmates who was also 13 years old. During the game, my glans penis is contacted with his glans penis. His semen is not out, and we do not have intercourse, but his pre-ejaculatory fluids is possibly contacted with my glans penis or even my urethral orifice. So, I worry that if he is HIV positive, I would be infected. Thanks a lot for your appreciation!