This guy did not know how to be moderate. He was too loud for these mistresses' liking and they could not keep quiet. They had to find a way to deal with him and the mistresses chose to spit on him as well as smother him. He was degraded like never before and he learned never to be too loud in the presence of others as there was no telling what they could do.
Mistresses Domi and Kimi wanted to dominate this slave because he seemed to have some bad behaviors which they wanted to tame. He had to learn to do things the way they wanted and that was why they chose to punish him. They settled on making him lick the soles of their shoes so that he would realize that they were not messing around and that he had no more time for fuck ups.
Mistress Katja and Lady Lena are training their little slave. They slap his face several times, and make him thank them by kissing their shoes. Great humiliation actions. Also including Jeanssitting and Smothering.