This guy bragged how he was a tough guy. This mistress laughed and it was the kind of laugh that was meant to ridicule him. He was offended by it and wanted to prove to him how tough he was. He was walking right into his trap and she gladly put him to test. She trampled him while he was wearing only his boxers. She enjoyed doing it and watched how he struggled to endure the pain till he could not endure it anymore.
Princess Serena learned that this slave had a habit of pilferage. She had to make him stop so she crushed his hands so that next time he felt like doing it, he would think of the pain and stop. She used her high heels to crush both the fingers as well as the hands. It was so painful the slave swore never to do it again and he never did.