This guy was weak because he did not have control over himself and his desires. When this mistress realized that, she knew he was the kind of person she needed as she would turn him into a paypig in no time. That is why she opted to financially dominate him while teasing him with her hot and sexy body. All that time, she was doing naughty things for him to be hooked.
Mistress Dana has a hot body. That is not in doubt. She has a sexy ass and some nice tits. Everything on her body is of the right size and it is all in the right place. She used the fact that many men found her irresistible to dominate this one and to make him her money slave. The guy found himself doing what she asked him. He was on autopilot.