I don't know if it's most - I'd say some women have negative views - because they've grown up with the same restrictive patriarchal gender boxes that men have. Most of the women I know, including me, think it's really hot. My husband had some curiosity for a long time, but only ever acted on it a few years ago. Seeing him with a man is really exciting for me - but then again, I'm secure in our relationship, in my own sexuality, and not into restrictive gender boxes.