Mistress Angelina does not like slow people. When she realized that this slave was slow, she had to do something about it. She chose to punish the slave using her facesitting. So she choked him with her ass as she sat on his face. He cried but it was not enough to change anything and so she made him regret why he had pissed her off by being slow. He changed.
Princess Serena caught this guy looking at her ass and she knew he had a thing for it. She flirted with him and teased him and he followed her. He was hooked and she knew she could do anything to him. She used her ass to humiliate him by facesitting on him. She had him lick and smell her ass and when she was done, she was surprised to find he had fun instead of being humiliated.