I was a Testosterone-driven teen in every way. After doing my shot the next day I got 'antsy' and easily upset with people, by the 3rd day I wanted to have sex with any woman who had a pulse, it was that bad of a drive. Two days later, I was 'normal' and then I'd go through it all again 2 days after that. Never was attracted to guys, never questioned my orientation at all.
But here's the rub - I NEVER liked penetrative sex. I always cuddled, I did penetrate anyway when begged to, but the majority of my time with a woman was spent doing other things with her. You can say I had mostly lesbian sex from when I came sexually active.
I probably shouldn't say this, but being on E now has made me actually dislike men. While I've never been attracted to them, I used to have a fair few male friends, and I've found myself completely distancing myself from them because the things I thought we had in common, we clearly don't. Men generally annoy me. The whole competitiveness, sports, drinking.....the 'macho' behavior we commonly associate with being masculine, totally make me want to run away from being around guys.