Mistress BlackDiamoond loves to torture guys for her own fun and this is especially so to assholes who deserve it. She found this guy being a complete asshole to an elderly couple and she knew she had found a good candidate for her cock cage. She hunted him down and flirted with him. He took the bait and she got him to wear a chastity device before she teased him and let him hurt in it and used it to teach him to stop being a dick.
Mistress BlackDiamoond wanted her ex to suffer a little bit so she made him wear a chastity device. And once he had worn it, she went ahead to tease him and she had a great time teasing him and making him have a hard-on which she knew would be painful for him as his dick would not have anywhere to expand to. He cried as that happened and he begged her to open it for him but she did not.
Mistress BlackDiamoond wanted her friend to learn more about chastity femdom because it was a good way to tame someone whether a slave or a boyfriend. She also did not want to be the only one among her friends who was good at chastity femdom. So she invited her friend lady Alice to her house and she showed her how it was done and let her have a go at it.
Mistress BlackDiamoond is a jealous person. She does not like sharing her man with any other girl and to make sure he did not cheat on her, the mistress forced her new boyfriend to wear a cock lock. He was shocked at what she asked him, but her sex was great and he loved how she took care of him. In addition, she turned him into a human ashtray and he had to do as she asked.