Mistress Maeva wanted to put her slave in his place as he did not seem to understand what his place was. So the mistress looked out for the perfect way to trample and dominate the guy. She took him to the woods and made sure it was during the rainy season. She got her boots muddy and then went ahead to make him lick them clean. He was shaken to the core by the demand but he did it.
When this guy tried to blackmail mistress Morgan, she knew that she had to do something to get him never to think of doing that shit to her again. So the mistress used her boots to do it. The mistress had him lick her boots before she used them to trample him from head to toe and then kick him indiscriminately. He cried and wished he had never tried to blackmail her.