Mean bratty Lilli Bayle and Gloria love to humiliate the slave so They rub Their soles on some ash making Their soles filthy, then They order him to lick them clean! You will see that the ash is slowly removed from Their soles by his tongue that becomes totally black. They keep using his tongue as a sponge, rubbing and wiping Their filthy soles on it and verbally humiliating him until Their feet are perfectly clean! (REAL DIRT!)