When did I start liking guys ?

Been thinking about this as I am advertising as a Bi escort on another site and I realised that I first went with a guy over 30 yrs ago.
I think I am getting hornier as I get older and my tastes and likes are so far away from vanilla now that it's getting a bit worrying.
So I think I will be adding some BI/Gay vids on my favourites, if any of my friends are offended then I apologise.