Madame Feng was a diligent dominatrix, and thoroughly evaluated all her girls before deciding how best to use them.

"Don't worry, Red, there's no pass or fail. We're just deciding what you're good at. If this is what you're good at, you get a real fun job. You're doing fine, by the way."

"Mmmmffff...."

"What? What's that? I can't hear you. You want to go faster? Ok, sure..."