Sounds more like blackmail than humiliation. It takes the whole consenual part out of the equation.

Humiliation might be having to confess to another what you did with your partner the night before, or what you want to do to your partner right now.
Or a dozen other things...

Not my cup of tea because she isn't having any fun. If she starts to enjoy this game, well then, bring it on. For an example, I would refer you to the Powerone stories with humiliation and pleasure:
JOANNA'S FIRST GYNECOLOGICAL EXAM or MAIDEN MAID

Is this something your planning or turning into a full story?