Tight bondage - suspension - is but one kind of tormen. Bound in ways she didn't expect; the rope from her feet, her toes, to the rope gag is another. When she tries to straighten her leg, it pulls hard on the rope, yanking her head back.
And tic. That can often be another. Especially - like today - when she can barely move, when she can't get away from the teasing fingers. And when she laughs, she pulls on the suspension rope, and especially on that hogtie style rope from her toes to her gag.
A night of erotic teasing and brutal torment. And wondering what more he has in his evil mind.