What I call sexism is this thought that in order to dominate you have to penetrate exactly like a man, that it is not rape unless you imitate a man and use a strapon. I think that women can rape just fine with their vagina. I don't have a problem with pegging as a rule, but the message is clearly there when majority of femdom games don't have a single vaginal sex scene and every time it is only pegging.A fetish isn't sexism though. Women who have rape fantasies don't hate women. You have to be able to make the distinction between the fetish and reality, or in the case of VN's, make the distinction between fiction and reality. If you're not into hard femdom, that's fine, but don't make it out to be something that it isn't as a reason.
I don't remember the exact name of the game, but I do remember that there was a scene where two women magically made it so that the mans dick was hard, it hurt for him and he couldn't cum, then they both rode him until they were both satisfied - good example of how it can be done.