If she has a skewed version of men based on her childhood or interactions with them growing up, all this did was affirm to her just how "disgusting" men are. In other words, if she views men as sexual "animals," or perverts, their signing up to do this affirmed what she felt or feels. It is not about the sexual act but about her view of men. I've seen this too many times to ignore that this is a "cry" for help, even if she doesn't know it yet