What's in a genre? What won't I write?

So far, I've only published fairy tale-related stories, so obviously I love fantasy. I always have. My parents read The Chronicles of Narnia to me when I was really little. My Mom read fairy tales and other folklore to me before I even started kindergarten. I'm pretty sure it's part of my DNA.

But what about the other genres? I had a healthy helping of sci-fi as a kid, too. Star Trek: The Next Generation was a favorite of my dad's, and was a favorite of mine. (Any episode with the holodeck or...