This chef had prepared food that made mistress Annabelle diarrhea. She was not going to suffer alone or in silence. It had to be shared and she felt that the best way to do it was to make him eat her diarrhea and lick it from her asshole so that he would be more careful about the kind of food he cooked and how he cooked so that it would not give anyone an upset stomach.
Mistress Annabelle and her business partner had issues. She did not want him to continue making decisions which had adverse effects on the business. She tried to talk to him but he did not listen. So she had no choice but to dominate and humiliate him. She did this by shitting on him. As he ate her poo, he realized he had no choice but to work with her for the betterment of the company.
This guy conned mistress Annabelle's mom because she was too trusting and she was pissed as someone had taken advantage of her mom's sweet nature. She had to get her mom get value for her money and for the guy to stop doing such things. So the mistress made the guy eat her shit and he changed as well as made sure he met his end of the bargain with the mistress' mother.
This guy was driven by his desire to fuck mistress Annabelle that he forgot about what she wanted. She could see what he wanted and she used him for her own fun. The mistress teased him and she got control over him before she had him eat her shit. He was scared and shocked but he did not do anything as he was afraid of the attendant consequences of his actions.