I would normally say that any friend who would shun you based on sexual, and consequently, religious orientation, is not a friend worth having. A good friend is a friend that won't run away when you confess your homosexuality and thereafter proceed to make homo-erotic jokes, both of you fully aware that no penises will penetrate either ass in the real life.

Actually in this case I don't have any other advice. You may as well proceed as >>2 says and see what happens. Good luck!