You like a guy getting humiliated when he can't get an erection for you don't you? A beauty like you doesn't have that problem, you'll just whip his ass until he's hard as a rock won't you?
I would have put his "I'll do ANYTHING", to the test! She needs practice being more intense with her discipline & verbal humiliation. Especially with a horny, willing, cock hungry whore, like he is!