I had a anal sex for the first time with one of my friends (still a virgin) and he cummed while we were doing it. i dont feel any pain and its not itching at all. I asksd him before he do that and he said it safe but i still have a fear that something might happen. What shall i do? Am i just freaking out or i need to be really worry about that. I don't think he has HIV or B hebatit but how can i be sure that I'm healthy now?