My first time with my teenage best friend [MM] (+18)

So I’m a long time lurker, big fan you’re all doing God’s work. This is just a depiction of my first experience with another guy. I’m 23 now but this happened when we were both 18 a few years back. I’ll start off with myself, I’m your average brown haired 5″10 slim guy, had some muscle tone at the time which has since disappeared along with pubs, social contact and general happiness. But enough pandemic talk.

I sort of had a small interest in guys for a while before this but I still preferred girls. Sometimes I’d look at a friend and be like “Yep, that’s not too shabby, I’d like some of that please”. It’s weird, my physical attraction sort of ended at their dick so I wasn’t too interested in faces/bodies. Is that normal? You’d sort of get a quick look while you’re going for a piss after a night out or straight up in a measuring contest, although they were rare and extremely awkward.