Does pornographic material distort fans' minds? I very much doubt it.
IMO that's a sticky one, though... I wouldn't say that pornography distorts anyone's mind, any more than violent movies (etc.) do, either. But if you're fed a steady diet of the stuff, with no corrective factor from other material (a healthy sexual partnership, a fondness for great literature, psychotherapy...), I think it might have some bearing on how you view reality, relationships, etc...
I've seen this happen too often in the gay community.
Shane
"Avon, you were my only friend..." --Blake