Oh, you see, that’s not the same thing. Most gay men are absolutely fucking terrified of vaginas, for example. A total mystery that, for most of us, we have only ever encountered in a biology class. (On the other hand, we probably know more about them from that biology class and our lady friends than most unmarried straight men). However, even as a straight guy, you could admit that dicks are fun to play with, even if it’s just your own. ¯\_(ツ)_/¯
Ya see, as best, as I can figure, the boob thing for gay guys is that, it’s a novelty because we don’t have them (usually), they’re actually kind of neat and fun, and if you push them together, they look like a butt, which is something we actually do like.
I would not say most gay men are terrified of vaginas. I'm not sexually attracted to vagina, but I'm also not scared of it, anymore than I'm scared of wrists, another thing I'm not attracted to, or tattoos, another thing I don't personally have. They're just a thing that's there, and that I'm not into. Same for most gay men I've met.