High Heel Teasing

Mistress Kendra James and Mistrix know that their slave is desperate to worship their feet, but they are going to make him worship their high heels first. To give him extra incentive, whenever he does not worship their heel to their satisfaction, they shock his balls using the electric ball shocker locked around them. For extra humiliation, they have him breath in the odor from their well worn heels. Will this slave earn the privilege of worshiping their feet?