Lady Scarlet was told of the things this guy had been doing behind her back and she investigated them and found them to be true. She was so pissed and disappointed in the guy that she had to make him realize that he had messed up big time. So she used her high heels to trample and to torture the loser in a way he had never been tortured before. She did this by slapping him on the face with her high heels.
Lady Scarlet and her friend did not want a smelly person anywhere near them and that is why they chose to dominate the guy and humiliate them. The mistresses had the guys lick their bare feet as well as lie on their backs and endure being trampled. The guys had thought that the mistresses were after having fun with them but it turned out to be something totally different and they were tortured and humiliated.