Lady Rockabella got her boyfriend to wear a chastity device after making him believe that it was something to make them have a great time. She shocked him when she hid the keys and then teased him to hurt him when he got a hard on. That was when he realized that the chastity device was to control him and especially his sexuality. He was only able to pee with it and could not cheat on her with it on and she had the key so he could not remove it.
Lady Stefanie used her seductive skills to get her slave to wear a chastity device. He thought it was something naughty she wanted to make him do but it turned out she was having fun at his expense and at the same time punishing him for something he had done a few days prior to that. The mistress got him to wear it, hid the keys and turned him on for it to hurt him. She let him stay with it for a few days.
Goddess Mel knew her boyfriend had a high sex drive. And she did not want him to cheat on her because she was going away for work for a long time. She did not want him to be tempted and find himself in the arms of another woman. So the mistress chose to make her man wear a chastity device so that he would not be tempted to cheat on her.
Mistress Tiffany's boyfriend is hot. He is well built and he is handsome. He has a deep voice and he dresses nicely and smells nice. She does not want other women preying on her so she takes great care to make sure that he does not cheat on her. That is why she loves to make him wear a chastity device not so much to humiliate him, but to make sure he would not do anything with his dick.
This mistress knew this loser had been paid and she wanted a little money from him. She had made him wear a chastity device so he was not able to get a release. She was the only one with the key to the device and she offered him the chance to remove it but he had to pay her. He jumped at the chance and gave her the money she asked for.
Lady Suzanne knows she is beautiful. She truly is. And she loves to use that to have fun. Unlike other mistresses who use their hot looks to gain favors or make money, she uses hers to have fun. And for her, fun is chastity fetish. She likes to make guys do stuff that they have never imagined they will ever do. And that is how she always has her fun.