I only ever met one girl who liked porn, as in it turned her on too....some times we'd watch it and masturbae side by side...her favorite type was gang bangs..BUT I learned th hard way not to comment in any shape or form on what I'm watching.
A girl was being gaped and I said "that's fucking hot, amazing arse" and she was like "why did you say that, am I not good enough for you....etc" I remember standing there butt naked with a vicious oiled hard on trying to calm her down and argue my point and my penis bouncing up and down I caught my own reflection in the mirror and I laughed,which made her more angry.
Never watched porn together since.