What Would You Do In A Situation Like This?

My brothers (God Help Them) are straight, but I am gay. Well, they keep inviting me over to their house for a party (or parties, or just to sit around and do nothing, apparently they think If I don't get out and do something I'll go crazy). And they have these guys over. I kinda am infatuated with two of their friends. I keep thinking about them and dreaming about them for some reason, I want it to stop or to get with them, but apparently that's NOT going to happen. What do I do to get them out of my head and to quit thinking about them? It's morally wrong for a gay guy to be wanting one, let alone two straight guys, especially if they are my brother's friends. What do I do?