I understand what you're feeling here. this is my same group of friends. A few of them just really don't like the whole "Gay" thing and purposely talk about it as if they were jocks and gays are nerds. A few might understand, but probably would end up drifting away from me after a while. So ultimately you'd be left alone with no friends, which would really suck. I think the best approach here is take it with time. If they are real friends who go out their way to hang with you or make somewhat of an effort to be there for ya; than I feel things will end alright. course I could be wrong, but I know I'd be devastated if my friends were to turn their backs on me in my time of need.
I would get them together at a gathering, perhaps if you're old enough to drink, maybe get them a little half in the bag. Go for it than, as their normal reactions may be partially blocked. One of them would have remember the next morning and it'd have to turn into a discussion of them confronting you. by this time you would be ready to give the full details and hope for the best. that's my thoughts, good luck.
