Mistress BlackDiamoond was doing a friend a favor. She wanted her slave punished and humiliated and mistress BlackDiamoond did it for her. She humiliated him using her high heels and made sure he was not only humiliated, but also in pain. She made him lick the shoes and when he was done licking them, she had him suck the heel part of the heel before she trampled him with the heels.