So I've always followed health professionals advice about not getting any object or body part that has been used anally into mouths or vaginas until its been throughly washed. But you see so many people practicing ass to mouth or vagina play, that I'm wondering how risky it really is, surely if they were getting sick or infections from it, you wouldn't see the type of play so much.
Has any member here that does ass to mouth or ass to vagina ever had any negative effects from doing it, or heard of any?