Mistress Kira and mistress Sofi had beef with this guy. He was too mouthy and the mistresses had to find a way to contain him. That is why they chose to use foot gagging and it worked out as he learned his lesson. But it was after he had been humiliated and dominated to an extent he could not forget or ignore. He did not want it to happen again so he changed.
Mistress Nicole and mistress Mia were great friends and this girl had observed them for a long time and she wanted to join their group. But it was not easy as she had to convince them and beyond that, she had to endure as they humiliated and dominated her to push her to the limit so that they could find out what kind of person she was. They liked what they saw.
When this mistress found out that she had gotten low grades for a subject that she loved and was good at, she knew there was something fishy. So she went to sort it out with the professor and he wanted to sleep with her first before sorting out her issue. She was insulted by that and she punished him by foot gagging her and crushing his mouth as well.