We're so used to kinky gymnastics and multiple partners that it's easy to forget that just actual sex and the enjoyment thereof has its own pleasures. I've gotten to the point where I skip most sex scenes and go to the action scenes, or to the emotional discussions.

But I like fics that concentrate on the sensory details. Touch, how skin feels under the fingertips and how lips feel on it; scent (not smell!) and sound are probably the easiest, lavender or sandalwood, husky voice, kind of thing; and then with sight, there's what the character is seeing, or not seeing.

Added to that is what I call the "psychology of why". WHY do all these things move the person? Are they touch-deprived? Whose scent or voice are they missing? Do they like what they see, or are they missing what they don't see? etc

I think the more emotional and sensual the prose is, the sexier vanilla sex is. I think it's a more straightforward need (and/or love) than kink is.