Goddess Martina wanted to show her slave who was boss. Her slave looked like he did not realize the fact that she was his boss and he was supposed to do what she wanted. So she undressed him and she used a trampling box to crush his balls and to trample his dick. Goddess Martina trampled the slave using her high heels so as to inflict maximum damage to him.
Mistress Gaia's friend asked her to show her how to trample a slave. She agreed because she loved trampling. She went to her friend's place and asked her friend to bring her slave. She showed her how to trample on the slave and to make him cry like a baby. She showed her how to make the slave do anything she wanted just by trampling him using her high heels.