Reading all these replies reminds me why I've been reading this forum for so long. You all have great opinions and views on people and why they are how they are, it's very refreshing.

Like others have said, it's a matter of personal comfort with explicit intimite subject matter. I also have gay male friends who squirm in their seats at the idea of watching lesbian porn, but have plenty of lesbian friends they love to death, etc. Like Basschick said, if it was homophobia their negative reactions would probably be hateful and rude.