No problem what so ever, I'm actually a protesant Christian and my personal view on it is that it's all ok. I've even gotten drunk and made out with a guy on a few occasions, almost as many time as I have girls... err yeah. I don't feel uncomfortable watching it, no more than watching heterosexual people taking part in heavy petting infront of you.
People who experiment with their sexuality for no real reason but to be different from the crowd, that's a different kettle of fish. You should only do it if you really are sexually orientated that way, it's not something oyu can just chose to do, you often can't control what you're attracted to. But when you do it simply for the sake of it, it devalues that whole lifestyle I think and turns it into a selfish act of percieved individualism and rebellion rather than real affection or attraction.
It's different from what I did because... we were both straight and very drunk, and I was kinda in love with his girl friend if that factors into it...