Kim and Melina may be young, but they are seasoned pros at abusing their pathetic local shoe boy. They know he's stupid and helpless against their deviant charms, and use it to their advantage to get their footwear clean and shiny with his saliva. Shoe boy is forced to grovel at their feet and tongue their shoes, even though one pair has used chewing gum on the bottom.
What a humiliating day for this slave. He has not eaten yet all day long and is really starving. His mistress has a good idea. Why don't you lick my boots clean, if you are lucky there might be some dirt stuck to my soles with some nutritional value. The slave has no choice and knows he better start licking those dirty boots. IF he gets lucky he might be offered a real meal after this humiliating experience.