‘Value For O’ by Jennifer Stevenson
“Okay. Here we go. Let’s say female orgasm is a fixed value, but the travel, the distance required to move from position one to orgasm, is variable. That’s our first unknown.”
Maths makes everything sexier. The story is told entirely in dialogue as a couple attempt to unravel the mystery of the female orgasm using an extended mathematical metaphor. Rather the disappointingly the answer turns out simply to be cunnilingus.
It’s not actually a science fiction story, it is instead one of those stories that creep in to SF anthologies from time to time purely on the strength of the fact they are likely to appeal. to science fiction readers. I also lied about maths making everything sexier so slightly marked down on that score but it is good, clean fun.