Mistress Milah and her boyfriend argued. She was proven right and she could not let it go. She facesat on her boyfriend as punishment for arguing with her on something she knew she was right about. She humiliated him with her facesits and she got him to learn never to argue with her unless he was pretty sure he would win the argument. She stopped facesitting on him before he choked.
Princess Serena loves to do things in her own way. When she realized that her slave was not about to do what they had agreed on, she was pissed and had to humiliate him. She did this by making him lie down and facesitting on him. She threatened to choke him and the slave who was scared shitless promised never to do what he had done to piss her off.