Being a huge fan of Kevin Spacey's for years - and having seen him live in person in NY (on Broadway) - honestly, my gaydar does not go off around him. I know many people say he's gay but I personally think he is straight. Just my humble opinion. I know most of you will disagree with me, and that's fine. I don't really care one way or another - he's an incredible actor. In many ways, I think his relationship is his career and when someone is like that and doesn't have time to date, speculations are made about them which may not be true.
Also, he NEVER did a porn video. If he had, trust me, I would have been ALL OVER that one LONG ago!