Another must

"She tried to demonstrate her power over him. She stayed away from his house; she waited for him to come to her. He spoiled it by coming too soon; by refusing her the satisfaction of knowing that he waited and struggled against his desire; by surrendering at once. She would say: "Kiss my hand, Roark." He would kneel and kiss her ankle. He defeated her by admitting her power; she could not have the gratification of enforcing it. He would lie at her feet, he would say: "Of course I need you. I go insane when I see you. You can do almost anything you wish with me. Is that what you want to hear? Almost, Dominique. And the things you couldn’t make me do--you could put me through hell if you demanded them and I had to refuse you, as I would. Through utter hell, Dominique. Does that please you? Why do you want to know whether you own me? It’s so simple. Of course you do. All of me that can be owned. You’ll never demand anything else. But you want to know whether you could make me suffer. You could. What of it?" The words did< not sound like surrender, because they were not torn out of him, but admitted< simply and willingly. She felt no thrill of conquest; she felt herself owned more than ever, by a man who could say these things, know of them to be true, and still remain controlled and controlling--as she wanted him to remain."

Ayn Rand - "The Fountainhead", p 268.