My last bondage scene was a body harness, tight to give a sense of being held and secure plus stimulating pressure on her crotch, followed by a dragonfly arm binding to make her conversely feel helpless. I tossed her around a bit, never letting go of the bindings. Her immediate fear of falling followed by her immediate realization that I was in control and holding her safely, created a psyche snap that made her absolutely giddy. Better than a roller coaster ride... followed by an overwhelming orgasm (remember the crotch rope.)
She was very grateful thereafter... and demonstrated her gratuity.