for me it started at 12 as a friend of my dads (later found out he was dads boyfriend ) would come into my room while mum was out working and spend a couple of hours making me give him oral pleasure before moving onto him fucking me. this would go on 3 times a week for nearly a year, never once did he use a condom and was my first taste of man on man and bb sex. i have no proof that dad was the one who gave him the go ahead to do those things to me but seeing as dad was in thew house most of the nights it happened im sure its a given he was aware and approved,