She knows better than to make a sound, no matter how difficult that is. He would stop as means of punishment, denying her the satisfaction she craves from his touch. Keeping her arms above her head, she only moves when he directs her body. Allowing him to control her movements is part of the game....and she enjoys it just as much as he does. Panting, she tries desperately to not make a sound, but a small whimper escapes. He instantly stands, putting his hand on her neck. "You know the rules."