Does nipple/aureola size in men have anything to do with estrogen/testosterone?

I’m just wondering because I’ve noticed that a lot of guys have small nipples that are barely noticeable (you can count me in that crowd) and others have larger ones (you can count my boyfriend in that crowd. Saw a pic of him next to 7 shirtless guys, his were bigger than all of theirs and he’s a small person). I’m not talking about if someone has man boobs or not, I’m just referring to the actual darker part, the nipple itself.

Yes, I know this question is very weird, but Google isn’t providing a lot of info for me. I was hoping maybe someone here is an “expert” on this topic…

I’m not suggesting if it has anything to do with being gay, but I am curious.