Mistress Clara wanted to force her broke paypig to lick her dirty feet because she had no use for him if he was broke. He was her paypig and he was supposed to be loaded at all times. But if he was going to be broke, then she certainly did not want to be associated with him. So she humiliated him by making him lick her feet so that he would understand that he was not to be broke again.
Princess Kitty felt that she needed to make money out of this slave. She had realized that the slave was loaded and she did not want to lose that. She felt that it was easier for her to turn the slave into a paypig and make money off of him, which she did without thinking twice. The mistress only teased him a little and then went ahead to turn him into a pay slave.
Goddess Nika had entertained her paypig and she had done it because she knew he would pay for her time. She knew he would not resist her charm and that is why she used it. He was turned on and as a result, easy for her to control. She laughed all the way to the bank when she was done financially dominating the guy. He did not even fully comprehend what had happened.
This mistress was broke and she could not afford to pay fees for her brother. Her parents were broke too. But they were all determined to help him graduate without debt. So she chose to use a paypig to get the money she needed to help him pay his tuition. She used her hot body and naughtiness to get the tuition paid in full for that year and it was worth it.