Mistress Marlena did not like how condescending this slave was and she did not want to let him continue doing that. He had to be punished and the mistress chose to use her shit to do it. She facesat the guy and she forced him to eat her shit as well as to drink her pee before she felt it was enough torture and punishment for him and let him go.
Mistress Layla knew this guy had some hidden agendas and when she finally found out what they were, she knew it was time to punish the guy and she did it using her shit fetish. The mistress forced the guy to eat her shit for misusing her and she made sure that he would never try that on anyone else as he knew what would happen if he ever did.