Mistress Gu gets angry easily and she was so pissed at this guy today and she felt that it was important to make him understand that for his own sake and good, he was never to piss her off or anger her. And she peed on him until he learned his lesson and agreed that he would never repeat his mistake. She believed him and let him go when she was done peeing on him.
Mistress Cai was not amused by what she had learned from her slave. He had been doing things behind her back and she did not like it. The mistress had to set him straight and she did it as cruelly as she could. The mistress turned him into a pee slave and she had fun making him drink her urine. He could do nothing about it and had to settle for being a piss slave.