Mistress Natalia needed to punish this guy because he had wasted her time. She did not like it and she had to punish the guy for it. That is why she used her shit to do it. The mistress knew that that was the best thing to do to him and that is why she did not hesitate to do it. As he ate her shit, he realized it was not ok to waste other people's time.
Mistress Natalia and her friend were used to threesomes, but they had never had a scat threesome. So they got this guy who was down for it and after foreplay, they took a shit on him and he had to eat some of it before they smeared it on each other. Then he fucked each one as the other licked and fingered the other girl. It was a hot and dirty threesome.
Mistress Natalia wanted to try scat fetish but she did not have someone to try it on. So she had to find a way to go about it and she did it. The mistress chose to pay a loser that she knew needed the money and in turn, he had to eat her shit. The guy did not want to do it but the money was irresistible and he agreed to it.