Slave licks disgusting street grime from my boots

After beating up this loser, i give him another chance to properly clean my boots with his tongue. he has to start with the tops of the boots - all the way up the boot legs - and i watch closely if he does a sufficient job this time. then it's time to move on to the real dirt - and he has to lick the filthy boot soles. i just love to see his tongue getting all dirty from the dirt underneath my boot soles - who knows what i stepped into with these boots - i've worn them so often recently - and now this loser has to lick all the disgusting dirt and swallow it. and he better gives his absolute best this time - or he'll be beat up and punished again until he has learned!