Lady Gyrfalcon
"Tab A goes in Slot A" except with parts of the body instead.
I've never seen yaoi like that, but I've read some het that was like 'Clothes come off. Lips collide. Lips separate. Guy gets b*****b. Guy has intercourse with girl.' It's the only het I'm into lol. I don't consider that good writing but it's just so funny I read it just to laugh at it.