This guy thought that mistress Lena had a huge crush on him and she wanted them to sleep together. She made him believe that as she teased him and talked dirty to him. He loved everything she did to him and he did now realize he was slowly losing control over himself and it all went to her. In a short while, she had control over him and made him do what she wanted.
Mistress Lena was tired of how hard it was to rise up the corporate ladder at her work place. So she came up with a way to get what she wanted in a shorter time. The mistress played and messed with her boss. What she really did was to brainfuck him and after she had hypnotized him, she had fun making him see things from her point of view and do what she wanted.