This girl was forced to be naked by this mistress because she wanted to punish him. She had been sabotaging her and it was time for her to take action. That is why she had to trample and smother her as cruelly as she needed to in order for the girl never to try sabotaging her ever again. The punishment worked and the girl never even thought of it again.
This guy was irresponsible and for that, he had to be punished painfully. This mistress felt that the best way to deal with him was to force him to cruelly endure the pain of her trampling. That is why the mistress opted to make the guy lie down while naked and to take the pain and punishment like a man. He did so but not because he wanted. It was not out of choice for him.
When this mistress needed to teach her landlord a lesson, she knew that the best way to do so was to hit him where he least expected her to. So she turned him on as he had a thing for her. The mistress waited for him to be naked before she crushed his balls and his dick with her sneakers. That is how he learned his lesson the painful and hard way.
When they got married, this mistress knew that her husband's dick was hers only and exclusively. And that was why she had to punish him and remind him of that fact when he cheated on her. She did it cruelly by using her high heels to trample and crush his dick. He cried but she was not moved as he was not crying when he was cheating on her and did not imagine how much it hurt her.