Lady Shay knew how to make this guy relax. She could tell that he was under a lot of stress so as she showed him her hot body, she at the same time used aromatherapy to make him relax. It was after that that she got him hypnotized. The mistress was interested in getting into his mind and helping him subconsciously. She was not interested in hypnotizing him for any other reason.
When this loser lied to lady Shay, he did not know that she would turn on him and then get the truth out of him without him even knowing it. She hypnotized him with her mind fucking prowess and she had a great time sifting through all the things that he had in mind that he did not want anyone to know but that she now had access to courtesy of hypnosis.