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.
Lady Despina felt that the best thing to do to this guy was to use her sneakers to dominate him. He had been a pain in the butt and it was time to make him pay for what he had done. That is why the mistress used her sneakers to do what she wanted. She even went ahead to invite her friend and the two of them had fun torturing him with their sneakers as well as bare feet.