This mistress was on a mission to get this guy. She wanted to date him and be as popular as he was in school. What worked for her was the fact that she was hot and she was mysterious. He had noticed her and she took that chance to bait him. She then showed off her hot ass and he loved seeing it and he wanted more of it. That is how she knew he was hooked.
Mistress Carla has a hot and spankable ass. And she wanted to use it to dominate this guy. She had an easy time doing it as she was able to turn the guy on and make him lick her ass. The guy wanted to fuck her and that is how he found himself being humiliated by the mistress. He had taken the bait and it was too late to go back.