Braddock watched as Jessica's fright overcame her as she began struggling. He uncovered the small control panel on the arm of his chair and took up the slack in the chains attached to Jessica's arms. When he had her more or less stretched her ribcage up, and prominently pulling her tits high on her chest, he stopped the winches.
In the meantime, Flayer had captured Jessica's other leg and had likewise secured it in the stirrups.
As he stepped back, Braddock was afforded with an unimpeded view of Jessica's pussy. Braddock flipped another switch and the stirrups began to spread her legs even wider. He let them continue opening until he could see her inner thigh muscles quivering.
In the meantime, Flayer had covered his face with a surgical mask and when the stirrups finally stopped opening Jessica wide, he stepped around and uncovered Jessica's eyes.
The reaction on her face, as she realized the room was "panelled" in wall and ceiling mirrors, was... exceptional.