This mistress was not joking when she asked this slave to style up. He had to learn to do things the right way and that is why the mistress felt that the guy had to feel a little pain. The mistress took him to a deserted place and she undressed him before she crushed his balls with her hands. As if that was not enough, she whipped his naked butt as well.
Mistress Zephy found out that her brother in law was cheating on her sister and she was not going to let it go on. She knew it would break her sister as she adored her husband. So she asked him never to do it again and to make sure he did not do it again, she whipped his balls after she had tied him up. He never cheated on his wife again.