Lady Naomi does not like to deal with inconsistent people and that is why she had to do what she did to this one. She was fed up with the way he behaved and that is why she had to do what she did to him using her ass. She smothered him, choked him and even farted on his for good measure. He got the message and he promised to be more consistent.
Lady Naomi was so mad that when she got home, she took out her anger on her slave when he did something she did not like. It was as if she was waiting for him to mess up for her to pounce on him and torture him. She cruelly descended on him with her trampling and smothering and made sure he was in a lot of pain before she was done with him.