Madame Marissa is a huge fan of bare feet walking in the summer - but obviously her foot soles get dirty quite easily. She walks a full day without shoes - goes to the super market, the gas station and even for a walk in the woods. When she sits down for a rest her foot soles are almost black from all the street dirt she stepped on - and then she orders her foot slave to lick them clean! He has to worship the disgusting dirty feet of his merciless mistress until they're spotlessly clean again!
Madame Marissa isn't satisfied with so many boots being dirty! She calls for her slave and brought 3 pairs of dirty boots for him to clean - with his tongue of course! She makes her submissive slave lick the dirty boot soles and suck the heels clean - but he isn't trying hard enough! She spits on the boots in between and makes him lick the spit from her boots as well!