Slave licks my dirty, muddy outdoor shoes

Description: I present my very dirty trail running shoes to the slave - i lend her to a friend of mine when we went for a walk in the woods ... and now they're in dire need of a proper cleaning! i instruct the slave to stick out his tongue and lick off all the disgusting dirt and mud that's stuck to the shoes - he's clearly disgusted by this task, but he won't be allowed to stop until these shoes look brand new again. after a while, i leave him for a short while - and when i return, i'm wearing my - also very dirty - hiking boots ... of course, these got also dirty when we went for a walk in the woods ... and the deep tread of those collects even more dirt! and obviously, the slave will lick these clean as well!