Can amphetamines bring out the gay person inside someone?

For the longest time, I considered myself straight (I'm 27 now). I have had a few girlfriends and hooked up with my fair share of the opposite sex. However, there was always a part of me that really enjoyed fantasizing about sex with a gay man. In fact, I'm not sure I ever came harder than the times I would watch gay porn. Recently, I was at a party and ran into a guy from my high school who was gay. Neither of us really knowing anyone, he asked if I wanted to go snort some amphetamine. I said sure, and as his house was close by we went over there. Anyways we both snorted a large amount and it made both of us horny as hell. He then suggested that he should suck me off as I wasn't dating anyone and he wanted a cock in his mouth. I was so horny I said yes with the caveat of "no gay shit" (kissing or anything further).

We took off our clothes and just seeing his shaved muscular body and big cock (8") compared to my (6.5") got me going in a way I hadn't ever felt with another person. He then proceeded to suck me in a way I had never felt from any woman. However, before I was able to get off he stood up and pulled me close and started kissing me, which I gave into despite my earlier denials. He then lead me to his bedroom and we fell into bed kissing and furiously rubbing our cocks together, which was turned me on more than I had ever been before. I then went down on him and took his cock in my mouth, finding that being submissive and giving pleasure to a gay man was an unbelievable sexual feeling. After a bit he pulled me up flipped me on to my back and asked if I wanted to fuck. I then told him I wanted him inside me, which he then proceeded to do bareback (stupid I know, but so hot at the time). He fucked me deep and on the amphetamines I was able to ignore the initial pain and felt a pleasure like I had never felt before. I even started pumping myself on his cock in rhythm with his thrust. I came more than I ever had in my life and felt guilty and ashamed in the immediate aftermath. However, that didn't last long and we did more amph's and I sucked/fucked him at least 7 more times into the next morning, with me always being the bottom.

When I finally left I felt guilty and ashamed of myself for having that much gay sex and enjoying it to the extent I did. I ignored it for a 3 or 4 days and denied that I was at all gay blaming it on the drugs. However, I couldn't help but fantasize about it when masturbating. later that week he called and said he had gotten some primo meth and suggested we smoke it together. I had never smoked meth before, but decided I needed to experience that sex again. I went over and engaged in a marathon sex session like no other, completely submitting myself to him. Since then, we fuck almost every day, whether it be on drugs or not. It feels so good, but it almost like I'm addicted to gay sex. It has taken precedent over everything else in my life, whether it be three ways or just us two. We are constantly fucking and if we fuck less than 5 times Heck, one of my oldest friends walked into my house while he pumping his cock into me on the couch in the living room and saw us. I was so spun on meth and enamored with the sex that I didn't even care, and after quickly looking at him, kept moaning in a bottom boi way, even getting more turned on that we had been caught. I haven't talked to any of my old friends since then and have accepted that I'm gay, as women just don't get me going like they used to. I need muscles and cock to suck and ride. Did the drugs combined with the sex just bring out my true sexuality?