Mistress Nina asked her foot slave to give her his best foot lick but it was not up to her standard and she was pissed as it was literally a waste of her time. That is why she used her sweaty and smelly feet to dominate him. He was humiliated and when that was over, the mistress also financially humiliated the guy so that he would learn his lesson even better.
Lady Karame had a problem with her slave's discipline and she ensured that he changed. She asked her friend to help her punish him and her friend agreed. The two mistresses were sadists and it was not hard for them to torture him. He regretted why he had disobeyed her as he was now in pain and he was degraded as well as humiliated like he had never ben before.