What's your surprise turn-on?

My example... and one I haven't told anyone before to boot! In an Environmental Lit class in college I read Lady Chatterley's Lover. Arrived at the scenes where they do it in Mellors' cabin and the woods. Mind you, I'm a porn-watchin' kind of gal and don't consider myself someone who pussy-foots around my schlicking material, so I didn't expect to be turned on by early 20th century literature... but in its weird, high-brow way it lit some flames and hubbie (then-bf) and I had grand boinkings that night. Thanks D.H. Lawrence!

Needless to say, later I had a variation of a "WTF did I just fap to?" moment, but hey, Lady Chatterley's Lover's got it going on! Now we know.

So, what's yours?