Someone as pathetic as you doesn't deserve to jerk off like a normal man... I'll let you jerk but only on my terms. I'm going to give you my heels and you're going to use them on your cock, exactly as I say while kneeling at my feet. Rubbing the soles on it, gliding it between the sole and heel, with the occasional bit of CBT, can't let it be too pleasurable now can I.