Lady Naomi and her friend were just chilling and having fun when this guy tried to spoil their fun. They did not like it and for what he had done or tried to do, he needed to be punished. That is why the two of them chose to punish him and they did it with their feet as well as smelly socks. He had to lick them all and do other humiliating things.
Mistress Alice did not want to continue arguing with her slave. He was stubborn and she knew she had to find a way to tame him as she knew it would reach a point he would not listen to her at all. So today she forced him to lick her soles and her bare feet to show him that she was not going to sit by and watch as he disobeyed her. And she told him the punishments would get worse and worse.