Tight V. Formation

So Kim wanted to watch BBM a few evenings back, mainly because she think's Heath Ledger is a hunk-a hunka... or should I say, was. Anyway, she'd never seen the movie and well, I'd seen it one and a half times. The first time, my ex Kate and I watched a bit of it at the theater. We were seeing some other movie and she wanted to sneak in BBM for a while and watch it while we waited for our show to start. Of course, we walked in and caught all the butt-secks parts. Then, after it came out on video, Kate forced me to watch the movie once again, from beginning to end this time.
Now Kim has me watch it and again, I struggle with what I think is an inheirently natural disdain for male on male action. I wasn't so much grossed out by the whole butt-secks in the tent part as much as just seeing these two cowboys hold each other and kiss and grope. I don't know... it just kind of turns my stomach to think of my lips frolicking with some other guy's lips.
So the question is, am I a homophobe for feeling this way? I don't have anything against gays personally. I think they are good people and equal with heteros..but seeing it still bothers me.