Mistress Lena felt that her slave was disobedient because he refused to lick her spit. She had asked him to lick and swallow her spit but he felt it was gross and he did not want to do it. She asked him to lick the soles of her high heels but he refused to do even that. So she kicked him in the nuts to show him that he did not have a choice but to do it.
Mistress Lena had given this guy her money but he did not pay it back in the time he had said he would. She went ahead to extend the time but still he did not pay it back. She was not happy about it and she had to teach him a lesson so that he never forgot to pay back his debts. The mistress crushed his dick and his nuts using her high heels and that is what prompted him to pay.