Do you think "monogamous" gay triplets are possible?

I think anyone who engaged in gay relationships realizes that gays are very promiscuous. I don't feel jealous to a guy my bf fucks as well, until when he fucks only with him. I was thinking may be it's better to live in triplets? So when one guy is out for whatever reason, the other can have sex with the remaining one. And it can contribute well to the overall sexual experience. I already started fantasizing about laying in bed with 2 beautiful men for days and enjoying our time together.