Mistress Morgan's boot cleaner only has one purpose, to clean Her filthy, mud-cladded, faux-leather wax boots.  Mistress' slave is not permitted to use his tongue for anything other than licking up every speck of dirt from any shoe, boot or heel She desires. The slave is not allowed water to wash down the dirt, he is only allowed to clean. Like the personal boot cleaner, he was born to be.