I think we need to look at the difference between the typical male and female mind. We guys are wired visually. If we see a sexy woman getting messy, we're instantly interested and will check the images or videos out. We don't normally care about who she is, if she's nice or not, what her voice sounds like, etc.
Now a woman, on the other hand, is usually very interested in the vibes and feelings she gets from a man. He may be attractive, but it's things like his voice, his confidence, his demeanour and not as much only about what he looks like.
Further backing of this theory comes in the form of 'girly magazines' and advertising materials that feature visuals of women, which men have parted with their money to see, or experience. Strip clubs, exotic dancers, and even hookers, are mostly female. The male prostitutes to my knowledge aren't on a street corner showing skin. That is because visuals alone don't normally excite the average woman. (there are exceptions) Males will look (and stare) at an average woman in a bikini, but women won't usually look at an average man in a speedo, in fact they'll look away. We're just wired differently.
But if a woman knows a man is kind, confident, friendly, etc. and also good looking, they'd be more likely to watch him in a wam scenario than if he were a complete stranger. I'm sure some women enjoy watching their husbands or boyfriends, but that is because of the emotional bond being there.
As for strangers? When do you see a movie about guys in swimwear at a car wash, playing as a group and getting wet and soapy? But you see lots of the opposite with young sexy ladies soaping one another at a car wash, and every male watching is happy just to look.
So in a nutshell, we guys have our eyeballs wired to our other balls, while women are attracted visually, but need more than just a visual. I think that theory applies to wam as much as it does generally.
The Vast majority of my sales are to men but every once in awhile I get a women who buys my videos. So there are a few. In fact I had 2 this month although one was a chargeback so it may have been fraud but still
So I'm bisexual (that's the short answer, anyway - hetero-romantic pansexual, if you wanna get nuanced). I'm really into men. But if I had to list all the reasons I find men attractive, "how they look" is going to be pretty low on the list.
When it comes to fetish content, I don't really like watching men do *anything* on their own. Since wam content is an inherently visual thing, it's just not a reliable avenue for my enjoyment.
That said, I can appreciate *some* male wam on other merits besides how the man/men look. How well the scene is set up, for example, or the quality of the substance(s) being used. Or how/whether there's a power exchange dimension I can find appealing.
I think this is probably pretty typical, as often as I hear it pointed out that women get turned on more with our brains than our eyes. If I want a scene to appeal to my brain, I'm probably going to need something more in that scene than just men.