Most of the time (believe it or not) they require porno actors to have frequent HIV tests. That doesn't mean he couldn't be HIV positive, just that he might be telling the truth...of course I wouldn't trust him. I'd haul my butt in for an exam and testing ASAP. I'd continue having regular HIV testing for the next year just to be sure. She could sue ONLY if he knew he was HIV positive when he had unprotected sex with her. Your friend isn't innocent in this though. That was a very stupid thing to do. If you know a man is a porno star, wouldn't it be smart to protect yourself?