Princess Helen is in a mood and she needs someone to torture to make herself feel better. It just so happens that she has a slave for just that. She gets him on his knees and orders him to lick her dirty shoes clean. The she gets right up onto his back and walks all over his. Once she's done with that, it's time for the real pain to start.
This guy thought that he could defame this mistress and get away with it but she proved to him that it would not happen under her watch. She had to make sure that he learned his lesson and that he would never do that to anyone else. That is how she chained him and she whipped his back painfully until it was all red and in pain. He screamed but it did not help.
This mistress felt betrayed by this slave after all she had done for him and since she was basically done with him, she had to punish him to teach him how she wanted him to act and behave in future. She used her high heels to trample his mouth and she gagged him with her foot and nearly tore his mouth apart. But she also slapped the shit out of him.
This mistress had a new slave and she did not want to have any argument or issue with him so she used her high heels to trample him as a warning to him. She did this to send a message that he was to obey her at all times. The guy was made to lick her soles after being trampled and he was also turned into a human pony and she rode him all over the house.