I knew that i was most probably bi since my early teenage. I had a buddy that i used to hung out with a lot, he had a sister one year younger, and she some times used to be around us. Me and my friend, like all normal teenagers do, i assume, used to wank a lot, we we’re probably 13/14 when we started doing it, and, at some point, out of nowhere, we started to wank each other like good mates, one thing leads to another and we went from wanking each other, to suck each other’s dicks, and then to fuck each others asses. One day his sister was with us but it didn’t prevent me from taking my dick out and start playing it, the poor girl was a bit embarrassed at first, but then asked me if she could touch it, i said yes and she tried to wank me but wasn’t good at it, i told her that she could suck it instead, and she did. Her brother was just there watching but didn’t do anything. Next day i got to be alone with her and toke her virginity. So from that day i was sucking and fucking my mate, and fucking his sister on the side. I grow up, turned into an adult, got married, but always been bisexual