Lady Krasaviza chose to warn her husband about her chastity key. She told him that if he ever did anything stupid with other women, he would only have himself to blame for what would happen to him. And she went ahead to tell him that one of the things she would do to him was to make him wear a chastity device and she would hide the chastity key where he would never find it.
Lady Krasaviza felt disrespected by this loser and she had to teach him who was boss. He had to learn his lesson and learn it the hard way. So the mistress carefully plotted how to deal with him and she chose to use her chastity femdom humiliation at the start. She would implement the rest as she went along. So the mistress took him to a remote area and she tortured him using a chastity device which he was forced to wear while he was naked.
Lady Krasaviza was not going to do any of the things that her slave wanted her to do. She did not like the fact that she was being given instructions by her slave when in fact it was to be the other way round. To put the slave in his place, the mistress forced him to wear a chastity device and she threw away the chastity key. She then turned him on and tortured him.