I have definitely written a great deal which isn’t exactly my personal cup of tea. I don’t have rape fantasies, but I’ve included it in stories. I draw the line at a threesome in terms of my own preferences, but I’ve written moresomes, and no one who knows me would ever think of me as submissive, although I’m not really a domme, either. Femslash doesn’t do it for me, but I do think I’ve written it once or twice.
For me, I write what the story needs me to write, and even if it isn’t my idea of a good time, if the characters are good, then so am I.