A couple of questions, help appreciated.

I don't have a clue about any statistics, but, in a sense, you could sort of create your own, by checking the archives at cleansheets.com or the erotica readers & writers site's fiction archives or some of the other sites like .... oh, heck, I've forgotten the name, but there are a few other free erotic fiction sites listed at the ERWA site. I would assume that the subgenres and kinks represented in those archives are a fairly representative cross-section, and would at least give you somewhere to start.

I believe they're all sites that draw both male and female readers, and it would probably be possible to see some patterns in the stories they publish, which might carry over to other readerships. Ruthie's Club (quick plug for self here -- they ran a short story of mine back in February) has some sample stories, and they market to both men and women, so that might be another place to check.

Beyond that, there's a lot to be said for just getting a bunch of samples from potential markets and reading them. I did that a couple years ago, not in a truly scientific/statistical manner, but by reading several books (anthologies) by a given publisher, back to back, it didn't take long for me to sort the publishers into two piles: those that fit my style and were potential markets for my stories, and those that didn't fit. The thing is, though, that another writer who also writes erotic romance read the exact same books (I sent them to her after I was finished studying them), and came to an almost diametrically opposite conclusion about which ones were a potential market for her. I think there was only one publisher we both said we'd be reluctant to send anything to, not because it was a bad publisher, but b/c there was something intangible about the stories that just didn't mesh with our styles.

JD