Down, Dirty

Miss Zoe has been training her boot licking slave for some considerable time, but now he needs to step up for a new challenge. Hes only been cleaning her relatively clean boots with his tongue to date, so now Miss Zoe decides to test him with some extremely filthy boots and make him lick the dirt from them outside as she walks in the dust and mud. Unfortunately for him, his mouth very quickly gets caked in the stuff, but Miss Zoe kindly donates a little lubricating mouthwash in the form of her precious spit.