Why do a lot of guys who have girlfriends still look at porn?

Definitely agree with deep blade. Don't feel ugly because porn isn't real and we know that. It isn't anything against you and I'm sure he still cares about you and loves you it's just something that guys REALLY need to do.

Guys are visual creatures... porns saves us from having to use our imagination when we relieve our stress, plus like heroinboy said, you won't always be there everytime he feels like screwing.

A girlfriend isn't always around, therefore you just want to wank sometimes.

Us guys look at porn mostly out of habit. We look at it to *ahem* relieve ourselves too!