This doctor was so arrogant and this mistress had to punish him. She was one of his patients and much as he was a good doctor, she did not want him to continue being as arrogant as he was. It clouded his judgment and made him make mistakes he would have otherwise not made. So she punished him using her high heels. He had to lick her high heels as well as her bare feet. He learned and stopped being arrogant.