You’ve told Ivory how much you cum hands free for her feet. Now she wants you to prove it, but just so she knows you aren’t touching your dick she makes you put your hands behind your back. You will do anything for her perfect feet so you put your hands behind your back like a good boy. Her soles are the reason for your orgasms and you admire her toes and soles as you submit to her. You want to prove you can cum like a good slave, without ever touching it. Good slaves know that they do not need to ever touch their dick to cum. Just worship her perfect feet and the orgasm will flow from your body. She has no use for your dick or seeing you jerk. If you want to be used by her you must ignore your bouncing dick and focus on serving her. Bare soles are all you need to cum anyways. Being used by her feels so much better than jerking it.