What To Do?

At the beginning of this summer a friend and I started letting our friendship have a bisexual side to it. Neither of us had ever thought of doing something like this, and we are both a bit shy and of course discrete about it, but with each other it’s been fun.
I’ll go over to his place and let him butt fuck me. I just find it‘s such a turn on having his hard dick in my butt. It gives me the biggest hardest boners imaginable and lots of times I’ll ejaculate while he’s doing that to me. It’s just so wild being guys together like this.
We have mentioned becoming roommates and just living together and calling it a gay affair, but each of us are a bit nervous about doing that and wondering if it would be a mistake. Any advice?