This mistress had paid for gym membership but her gym instructor was shitty. She did not like how he trained her. He was always looking at her boobs and her ass and did not concentrate on his job. So she plotted to punish him and she did it humiliatingly. She forced him to lie down and she crushed his face with her ass. He had to lick and smell her ass before she let him go. She farted to make it more humiliating.