Mistress Gaia likes order and when she noticed that this guy was being unruly, she knew it was up to her to punish him and teach him to behave the way she wanted. That is why the mistress enjoyed whipping him since she was sure that it was the best and easiest way to dominate and humiliate him. She whipped him while he was naked and tied up before she spat into his mouth and he had to swallow it.
Lady Emerald likes to enforce discipline in brutal and cruel ways so that one does not repeat it. That is what she did to this slave because she felt that he was becoming complacent and she had to stamp out the indiscipline associated with him. So she whipped him mercilessly and he felt pain he had not felt in a long time. He was tied up so that he would not resist.
Lady Phoenix felt that this loser's behavior was getting out of hand and that he needed to be tamed. She had to do it in a clever way and she chose to use her whips to do it. He was in a lot of pain as she did her thing on him. He cried and begged her for mercy but the mistress ignored him and she continued to whip him until she felt he had gotten the message.