Princess Deh wanted to make sure she had done enough to teach this guy not to mess with her. So she used her bare feet, smelly socks as well as dirty soles to dominate the guy. He was in pain as the mistress did her thing on him and he felt like crying at what she had done to him. He had one of the worst times ever and she had one of the best times ever.
Princess Deh had to humiliate this guy because he was ill mannered. She felt that not doing so would encourage him to be badly behaved and she knew that was not ok. So she used her bare feet to do it. She crushed and trampled his face and when she was done, she had him pay for what she had done to him as it was to help him change.