I read this whole thread in one setting. Not all of everyone else’s comments, but all of yours.
Has he came out to anyone other than his brother?
No.
And as funny as this might sound, I truly don't think he is gay. I think he is straight and is now only mostly ok with doing some gay stuff with his best friend (me). Notice I said "some." There are times where I will ask if he wants to try something new and he will say "no, too gay for me" or say "no I don't think I'd be into that, can you just suck my dick instead" etc..
I know he jerks off sometimes and even if I am blowing him sometimes he watches straight porn or girl on girl stuff. I also jerk off a good amount and if I can't just look at him naked in bed or play with his softie while I'm doing it, I watch porn too, but gay porn mostly.
I think we are at a point in our lives where this works for both of us. I know we love each other, we have both said as much, but I know we mean it in exactly the same way. Although that may be starting to change.
I have my own bedroom technically, but only ever sleep there if we have friends over. Neither of us act/present as gay/flamboyant and everyone aside from his brother just assumes we are bros. We never hold hands in public or anything like that at all, which is why the recent kiss after fooling around shocked me a bit.
He has had awful luck with girls and every gf he has ever had has been a piece of shit as a person tbh and I think, at least for now, the companionship he gets from me living with him and the intimacy he gets from me worshipping his dick on-demand is enough to keep him happy and at peace with where he is in life right now, and the same goes for me. He is my best friend, I love him, he is good looking, and I have the privilege of getting to suck or play with his amazing dick anytime either of us wants to. I mean I think we will always have a special connection in that area too, because we did lose our gay virginity to each other (although neither of us is really into anal and it is really only a special occasion thing or if he just NEEDS to fuck). Besides, he has always loved blowjobs more than sex, but never really got to enjoy them because his exes all disliked foreskin, and didn't want it in their mouths (which I still don't understand tbh). It's also nice that he is now a little more willing to help me out in that department too.
I am perfectly aware this arrangement will likely not last forever, but I will keep trying to convince him otherwise, lol. But since we have been living together he has shown no interest in getting a gf and is actually happy for the first time in a long time (which everyone else in our lives also notices and has pointed out), which is something he never achieved with any of his gfs for very long, even the long term ones.