*vibrator/favorite sex toy
For the grand finale, dismount your slaves face and grab your favorite sex toy and position yourself so that he can watch you get yourself off, all while he is helpless to do anything. While you are well on your way to a toe curling orgasm, stroke his cock with the arches of your feet, and if he is making too much noise, or enjoying himself too much take one of your feet and put it in his mouth to keep him quiet. Make sure he doesn't cum, and once you have reached the top of climax mountain, take a moment to enjoy your moment of ecstasy while he is still helpless.