Princess Serena was bored and she felt it was high time she tried something new. After shopping around, she settled on giantess butt crush and she gave it her all. The mistress wanted to find out whether it was as fun as she hoped it would be. When she became good at it, she used her new giantess prowess to blackmail guys and to scare the shit out of them.
Princess Serena wanted to show her slave what she would do to him if he messed up with her. She did not want him to think that she was going to let him go scot-free. So the mistress took a doll and butt crushed it was he watched. She explained to him that she was going to turn him into a tiny man and butt crush him until he suffocated. He got scared and did what he was told.