Mistress Mara wears her high heels in first place to inflict massive pain to her slave and in second to look as beautiful as she does. She has no problems with trampling the slave with those shoes. Without any pity she tramples all over his chest and then she even jumps on him landing with her dangerous sharp shoes on his nude skin. She also practices to stand in the slaves face with her shoes. Sometime later she takes off her shoes to continue jumping and bouncing on the slave with bare feet.