Bingo. He dislikes the saying that there's no such thing as a Kinsey 0 because he's quite sure he is.

Study in contrasts. Business with pleasure, etc. You get to appreciate some good workmanship when you get your face pressed down to it, so there's the aphrodisiac of success, but also with the kick of being with someone who's willing to cross lines because the desk's not usually considered the time or the place. Plus, when you're shoved down on a desk, it's better for the angle of fucking than being bent over the bed because said angle isn't thrown off by sinking into the mattress.
A really nice car can also work in some situations, but taking it hard is both an art and a science.