So I tried it and got a lot of fan mail, and was encouraged, and so I wrote some more. It's been in large part the fans who kept me writing, although I also had some stories I wanted to tell. I agree with you, and I am a writer too, but I don't write erotic fiction. Appealing enough to publish your works for the world to see, both on the internet and in books. Since you're a writer, I'll give you a writer's answer.
Sexuality is a huge neglected aspect.
There are also all sorts of political reasons for writing openly about sexuality, but that's a long answer. Part of any writer's work is, I think, drawn from personal experience, and so is much of mine. Yet there is a part of me in all those stories. If you must have gossip, I'll give you a hint. Partly because I got a surprising amount of reader response, which really encouraged me.