This guy was a notorious bully and mistress Van Licks and her friends did not want him to continue. He had bullied someone close to them hence why they had to punish him. He was forced to endure the pain of being fisted. It had never crossed his mind that he could be made to undergo that and it was a wake up call for him. He stopped bullying others after that.
This guy refused to cooperate with mistress Luciana and she did not like that. She had to make sure he was dealt with and the learned to cooperate with her. The mistress did not hesitate to fist him as she wanted him to feel pain. He was shocked by what she did to him and it was excruciatingly painful. But he learned his lesson and never messed with her again. He cooperated with her.
Mistress Barbara and her friend had agreed to do certain things with this loser but the loser did not do the things they had agreed on. And that is why she chose to degrade him and to punish him so that he learned to honor his word. She did not want to work him again if he was untrustworthy and that is why she fisted him cruelly in the ass.