The dirt on Mistress Jane's muddy leather boots dissolves so much better with spit, so she spits on them before making the slave lick them clean. Just to be sure, she spits on the them again. After all, all the dirt has to be properly licked away and the spit along with it. She watches the slave very closely to check his work because she wants her boots perfectly clean so she can go out in them at any time. But wait... what is this? There is still dirt on them! Mistress Jane spits on them again. Lick it ALL off, slave!
Bah! Why are these soles so filthy?! Mistress Zora has walked through dirt and mud with her sneakers and now wants them clean again. Fortunately the slave is right here for her. She makes him lick her dirty shoes completely clean - which works best with the help of her spit! She spits on her soles and pushed them towards the slave. No matter that he might be disgusted by this - Mistress Zora has no tolerance for that - she simply expects shiny soles. She'll expect them from you too!
On command, the servant fetches an ashtray for his mistress and submissively holds it out to her. But Mistress Anfisa doesn't need it at all - because his slave mouth is her personal ashtray from now on! She lights a cigarette and blows the smoke slowly into his face. So he can start getting used to his new function. Then she deposits ashes into his mouth and lets him eat them. So it goes on and on, until Mistress Anfisa has smoked her cigarette with great pleasure. She extinguishes the cigarette with her spit and makes the slave eat the filter too!