I think the issue you speak of is very rare chatpilot. All the studies I've seen suggest that homosexuals aren't attracted to heterosexuals in the same way heterosexuals aren't attracted to them. An interesting data analysis done on over 3.2 million users of the dating site OkCupid found that gay users rarely visit straight people's profiles, and also that 28% of straight people had either enjoyed a gay experience, or wanted one.
http://blog.okcupid.com/index.php/gay-se...aight-sex/
http://blog.okcupid.com/index.php/gay-se...aight-sex/