My observation of couples who watch porn together is this....bad idea! At first the girl is happy her man has a big hard on, but soon after it's becomes obvious that they are no longer the center of attention, and then they get that look. The guy realizes this and tries to please the girl in a position where he can also watch the porn. This always fails and the guy ends up grabbing his dick again to focus on the porn. At this point the girl realizes she really is second to the porn. Finally, after much effort, the guy manages to release himself usually without much help from the girl other than being vigorously face fucked. In the end no one leaves very satified. IMHO, leave the porn for masterbaring when no one is around and enjoy your girl fully when she is.