But, I definitely prefer R/NC-17 fic. There's a spectrum of hotness; even if the story doesn't actually turn me on, there's a warm and fuzzy feeling that comes with knowing the two characters you wanted to got together in an interesting and satisfying way.

I feel this way too. In a way, if I have a thrilling adventure with a terrific build-up between characters and I suddenly get a fade to black scene, I'm usually left wondering why. Why did the author, who up until now had my full attention with the richness of their detailed story, suddenly bow out? It makes me wonder if the author is not comfortable with writing the scene or the relationship itself. In a small way, it throws me out of the story the way someone else might complain about a small, but still noticeable, technical error.

For me, when I am writing a sex scene, it is an integral part of the story or else the story is not meant to be slash but gen instead. As such, I don't have them bouncing in and out of bed every five minutes. The sex isn't there for sex itself, but for vulnerability, or because the character is using sex as a substitute for intimacy or because of some other reason.

I'm always astonished when I hear that people skip or skim the sex scenes. I put them in there for a reason. :-)