[NSFW] Women watching porn what is the draw or appeal for women to view it?

One of the beauties of Fluther is its ability to spawn questions from other questions. While browsing through questions Fluther felt was in my interest and questions related to those I have seen some regarding women and porn, but not in the way you would think. It was about women watching porn (never knew so many did) either by themselves or with their mates. I know you ask any number of people what they think of porn and you will get many varied answers.

Rather than debating porn good or bad my question would be more towards women (but men’s point of view welcomed too). For you women who watch porn what do you get from watching it? What reason do you watch, to learn new maneuvers, positions, role playing ideals, etc? If you watch alone do you find the viewing different if you watch with your man? If you watch with your man do you feel threaten by the women in the DVD? Do you feel more threaten by the women in the DVD if you allowed him to view alone?