Mistress Kira and goddess Sofi had both been conned by this guy and they wanted to punish and humiliate him but they did not know how to do it individually so they were excited when they realized that they had gone through the same thing and wanted the same thing. So they combined efforts and tortured him using their high heels. He was no match for the two of them.
Mistress Sofi wanted to trample this slave and she felt the face was the best place to start. So she used her heels to trample his face after she had made him lick her heels. And she continued the punishment and the humiliation using her bare feet. The loser did not catch a break and he was exhausted, in pain and humiliated beyond his wildest dreams. He learned his lesson.