Is it possible that I'm asexual?

THIS ISN'T NSFW I DON'T KNOW WHY IT'S TAGGED AS SUCHI'll just go through this step by step.About me: 18 yr old male cis gay college freshman. Very nerdy/geeky. Grew up in liberal area, currently attending a liberal school. Realized I was gay and came out sophomore year of high school. Literally no one was homophobic at my school and I've never encountered problems being gay.My boyfriend: I met him during the second week of college and we had a lot of interests in common and hung out a lot, "as friends". Within less than a week he casually mentioned he was gay, and a couple days after that I admitted I liked him, and he reciprocated. I've never come anywhere near a relationship before and neither has he. This is a throwaway account because he knows my Reddit.The situation: I've now been in this relationship, my first one, for two months. There have been no problems at all... sort of. Within the first couple weeks we gradually became more intimate: first holding hands, then kinda cuddling, then almost kissing... at which point I realized I wasn't ready to kiss him, or anyone, yet. I also realized that I didn't even want to think about sex any time soon. He was very accepting of this and hasn't tried to move past cuddling (by which I mean fully clothed and 90% non-sexual cuddling) since then. But I've been aware ever since that he'd like to move things to the point where we can really say that we're in a relationship, and with Thanksgiving Break approaching (meaning we won't see each other for a while), I figured that I should try to kiss him. I mean, it's been two months, right? What the hell am I doing? So after we were done hanging out tonight, I tried working up the nerve to do it as we said goodbye and hugged... and I just couldn't fucking do it. At all. I could not kiss him or even try to.So now I'm wondering if I'm asexual. I truly hadn't considered this before, because... I mean, I just assumed I wasn't. I get boners if I think about, uh, gay scenarios. As far as I'm aware, I experience normal homosexual sexual attraction... I. Think. But I honestly can't be sure. And there are some other things that are sticking out to me now. I've never watched porn. I've never felt the slightest urge to watch porn and it was only after getting into a relationship that I even became aware this was a weird thing. Also, I'm 99% sure that I find pictures of shirtless guys more attractive if their junk isn't exposed. Does this mean I'm asexual?Feel free to ask for clarification on anything. I'm kinda rambling.