If not, why not?
No, because why would I?
Well, creative writing can be like dreaming or fantasizing; a safe outlet for what we want to do in the abstract. And It's not easy throwing fresh discussion concepts.
Hahaha...okay, I can see the fresh discussion concept being a problem. :-) You're doing a good job to get people started talking.
I guess most of the people I interact with are not people I consider first and foremost as sexual beings. They're people. The person I do consider a sexual being is the one to whom I'm married, and that's awesome.
My characters, because they're created by me, are hierarchically beneath me in the grand scheme of things, and therefore I'd never consider them as partners because that's not fair. :-)