Tasty street dirt for human-rug

Description: My slaves pathetic face is lying right under my feet, when i'm sitting in the chair texting and ignoring this bitch most of the time. then i've spat in his mouth and ordered to lick dirty soles of my sandals clean. my feet are still standing on his face/neck during the process. sometimes i'm wiping soles on his tongue like on rug. the soles are really nasty: here is only street dirt, mixed with something gross (the sticky pieces of something obscure on the right sole; and bright dried blots of someone's spit from the street, or pet's piss, i don't know what it was, it was just something wet and nasty in what i've stepped on at the bus stop today, when i saw off my boyfriend... so, whatever it is, i'm totally don't care, my slave must lick and swallow everything from my soles, no matter how it might hurt him).