Mistress BlackDiamoond found out what had happened to her friend and she was not amused. She realized that her friend had been threatened and humiliated by this guy and she was not happy. She sought to punish him and make him apologize to her friend. She lured the guy to her house where she tied a chastity device to his penis and she teased him and made him feel pain as she aroused him. In addition, she also had him lick the soles of her shoes.
This mistress does not like to do things in vain. She had been given a guy to punish because he was a sex addict. But he did not heed her instructions of what to do and what not to do. So she went a bit extreme and she made him wear a chastity device. She locked it and kept the keys. She then teased him and had him feel pain as he got an erection against the tight device.