lydialanguish, I'm sceptical about Nancy Friday's books too. I read them years ago, but I wouldn't reread them now. Remember Kinsey and his possible distortion of figures. Some may want to be sensatioanlist to make money, and others may have an agenda. I don't think you can hold too much store by some of these books.
Peabody, I think the fantasies that you have are quite normal. From the people that I know, I have found that the people who are control-freaks, who are organised etc. like being dominated, because it is the opposite to their real life. They are free from being in control, free from acting a part, free from holding things together. They are able to let go and be dominated instead of always being in charge as they are in real life. The people who are disorganised on the other hand often like dominating. They gain the control that they don't have in real life. That's why some of the most powerful men in business and politics like being dominated, as a release. SGB will know more about this than me, but I think the figures for women and men who like being dominated far outstrips the figures for those that like to dominate.
I think that people have these fantasies as well because they are essentially play acting and they are confronting subconscious fears by acting and drama and this lessens the fear. It's a bit like people who are scared of flying, forcing themselves to fly or imagining that they are in a plane, and overcoming the fear by surviving.
SGB won't agree with me, because she doesn't believe in imaginary friends, but I think there is also possibly a spiritual element to it. It is a bit like the priests who self-flagellate and wear hair shirts amd pierce their tongues etc., as in India. Through pain and suffering, people lose themselves, they relinquish control and strip the facade of control from their lives and get closer to God, because they get close to finding out what is underneath the facade of their personality and being, and get closer to the core, which is God.