I have a friend who was nearing his 40s and never had a sexual experience, ever. He had a very rough life and was undergoing a great deal of therapy. His therapist recommended that he visit a prostitute. My friend did this, twice. Once to experience oral sex and then intercourse. He said he enjoyed it but then worried for a very long time about the possibility of being infected with HIV. Turns out that he is fine (Thank you God) but I can't help but wonder why a therapist would ever suggest such a thing. I think it caused this guy far more stress and worry than anything else.