>>45956657>What? Why?Because.
Did you know that one of Japan's mythical/historical figures was the son of a human nobleman and kitsune woman?
There were also cases of male kitsunes taking on the form of human women. Wouldn't that be a laugh?
Beyond that, there were some really nasty kitsunes, especially on the mainland. The Korean ones were infamous as man eaters (and not in the lewd way), and while the Chinese ones were a mixed bag, you should look up Daji for a fun read.
Kitsune aside, there are weird tales of human and inhuman fucking all across the world. Here's one from the West.
https://en.wikipedia.org/wiki/Selkie>The folk-tales frequently revolve around female selkies being coerced into relationships with humans by someone stealing and hiding their sealskin