Dildo up the ass has to fall under gay tendencies.
Why?
It's my assumption that "gay" is definied as being attracted to the same sex.
So because you like the feeling of something up your ass, that means you're gay? That doesn't make any sense to me, based on the definition.
I think people are being pretty close-minded about this. Granted, I wouldn't try it, but I'm not going to call any guy who enjoys this gay, especially when it's one of the erogenous zones.
X-Files, how did you ever get started doing that? WTF happened that first time, what compelled you do stick something up there? I don't get that, so anyone with experience, please share. That's the only thing that baffles me, I just don't get it.