Mistress Vicky had sex with this guy but she did not want anyone to know that she had fucked him. It was their little secret and she had told him to make sure that he never opened his mouth. But the poor guy did not and she was pissed at him for it and she choked him with her scissorhold because he had betrayed her trust. He never got to see her pussy again.
This mistress did not like how this guy spanked her and she was not even in such kind of a relationship with him. She felt that he needed better judgment and respect for boundaries. That is why she chose to trample and cruelly punish him so that he respected her. So the mistress cruelly stomped and crushed him but the icing on the cake was when she choked him and made him pee his pants.