Mistress Nica wanted to show this stable boy that she was not the sort of person to ignore the way he had been doing. He did not groom her horse as well as she wanted and she punished him for that. He had to lick and smell her butt as she facesat on him on hay and she also got him to lick her boots which had mud on them.
Mistress Nica did not like how rude her slave was. She did not mind showing off her big tits as she punished. She knew it would throw him off balance and make her punishment of him easier. And it did. She crushed his face with her hot ass and he nearly choked as she did so. The mistress laughed at him as he peed on himself and begged her for mercy.