Straight to the dick

I could see her inner conflict written all over her face, but I was already one step ahead of her. I knew she would do anything to get this over with as quickly as possible - and with as little humiliation as possible. Unfortunately for her, she had underestimated my desires.
Still, my observations were correct. Still half-dressed, she fell immediately to her knees before me - that comment of mine had given her the encouragement she needed.
The question was - would I let her get away with disobeying my order and only half-finishing her strip? Even as I thought about it, her tentative hand reached towards my zipper...