Lady Rockabella wanted this guy to do the kind of things she had asked him. But the guy was not super keen to do so and the mistress did not want that to let that happen again. That is why she teased him, disarmed him and then dominated him with her dildo. He knew never to piss her off again after that as she was angry and he knew it.
Lady Rockabella was not satisfied with making this guy a sissy. She felt that he deserved more and that is why she used chastity humiliation to teach him the lesson that she wanted him to learn. The mistress forced him to do all the things that she wanted and that is how he knew never to piss her off again. He ran away as fast as his feeble legs could carry him.
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.