If you're working on the assumption that "any hole is a goal", the sex of the sucker is irrelevant.
If you're married, you should be grateful your todger has been inside anyone's mouth at all.
If you sucked his in return, yup, you're gay.
Moody, as usual you're far too empathetic in your response.
Of course you're not gay. Everyone knows, the only thing that makes you gay is having an earing in your right ear. Sucking another man off and undertaking in scratchy bum-sex are really neither here nor there.