Hello, I am a male and i am in a relationship with a girl and we took each others virginity, so we have no STD's. She is on a oral contreceptive but we rarely have vaginal sex. Lately we have been taking part in unprotected anal sex. Its very enjoyable and we both would like to continue doing so. My concern is that can i get a disease or serious infection from it? or something that could possibly cause infertility or cancer? and i'm also concerned about her. Can she get anal cancer from it?