Mistress Dana felt that she had to punish her slave because he was too slow for her. She did not want to let him get away with it and she chose to use her jeans as well as her bare ass to torture him. He was not only in pain, but he was also humiliated by what the mistress did. Needless to say, he learned his lesson and he would stop being slow.
Mistress Dana loves to show off her hot ass and today she did it. But she was not doing it to make money or to dominate or even tease and deny. The mistress did this in order to appreciate her money slave as he had been cooperating with her the way she expected him to and she loved it. So she had to encourage him to continue so she gave him some jerk off instructions.