Mistress Harley has a hot ass and she knew that she could easily use it to dominate this guy. So the mistress went out of her way to use it to tease and humiliate this guy. The guy loved what he saw and he took the bait. That is how she easily hypnotized him and controlled him. Then she had fun making him do what she wanted and give her what she wanted too.
This mistress did not want to go through the whole process of applying for a raise and having to justify it when she could just hypnotize her boss and have it in a second. And that is what she did after she had found out her boss liked to secretly check out her ass. She teased him with her ass, her pussy and her tits and she got what she wanted without having to give up the cookie.