I actually got my start with having sex with a man in this exact situation. I was in a park sunning myself. Never once had I thought of having sex with a man. I look over and a 65 year old was masturbating while watching me. I got an instant erection. In a brave moment I got up and went over to him. We moved to a more secluded spot and he introduced me to sex with a man. I was 22.