I think a woman tied down, legs spread wide (I love the idea of her ass being up in the air or her ankles being above her shoulders mmmm), stuffed with a vibrator and stimulator attached to her clit, would cum and cum and cum. She has no choice in the matter. There is no woman who has the will to withstand such an assault on her self-control, as she is innevtiably tunred into a whimpering, squirming slut.

Her body convulses, her mind recedes, and her throbbing pussy consumes her, while Master adjusts the intensity of sensations. Sometimes he teases her with low-power stimulation, then he blasts her with devastating, cunt-conquering bursts.

He decides when she cums.
He decides how hard she cums.
He decides if she cums.

Sometimes Master allows her to rest (still bound and exposed) for intervals, and to make a trip to the toilet, but she is never set free for a whole day.

Master may choose to place a bowl between her legs and collect her pussy juice, as souvenir and proof of her sluthood and his "cuntrol" of her.