That insidious "hidden secret" in your hotel room

This ad frequently appears on several sites I visit, and I can't deny the subtle pull of the sensual image coupled with the tantalizing promise of a "hidden secret" (another poisonous leaf from the "free gift" tree).

Indeed  - what happens to the person that gathers enough courage, clicks through that link and makes a reservation? What unearthly delights should one expect in that room, if the image above is to be taken as a hint?

I don't know. I have never gathered enough courage to click on that one.