Goddess Nika loves to give back to the less fortunate but since she did not have enough money for that purpose, she had to find a way to get more. And so the mistress turned to money slavery where she teased and flirted with moneyed sons of bitches and she turned them into her cash slaves and that is how she got the money she needed for her charity work.
Goddess Lena wanted to try things she had not tried in a long time and that is why she chose to use money slave to do it. She had a score to settle with this guy and so she used that chance to punish the guy by turning him into her financial slave. And she used the money she got from him to try the things she had wanted to try.
This mistress' bills did not care whether he had money or not. They were piling up and she had to come up with a way to pay them otherwise she felt they would overwhelm her if she did not do something about it. She sat down and after thinking it about it for a long time, she settled on money slavery given her thirst for fun and her hot body and big assets. And she became so good at it that it took care of her bills.