Lady Scarlet had found out that it was this guy who had been doing some silly pranks on her. She was pissed but could not do much since she did not know who was doing them to her. But when she found out it was him, she made him regret what he had done by forcing him to lick her spit and trampling him as well as having him eat food from the floor.
Lady Scarlet was disappointed in her husband and she did not like it. She felt that he would not stop disappointing her unless she sent him a message he would not forget any time soon. That is why the mistress trampled him as well as had him lick the soles of her heels. In addition to that, the mistress forced the husband to swallow her saliva before she was done.
When her slave erred, lady Scarlet had to punish him. The slave knew as much and he prepared as well as he could for the beating he was sure was coming. But it did not materialize. Instead, the mistress used her spit to degrade and humiliate him. She wanted the punishment to be painless but one that he would never forget for as long as he lived. And that is what happened.
Lady Scarlet and lady Selly wanted to change his guy because they did not like his manners and since he was around them all the time. The mistresses tried telling him but he ignored them. So this time they used humiliation to get what they wanted. He was forced to lick their feet as well as open his mouth to swallow their saliva. He did not want that humiliation again and this time he changed.