Mistress Mercedes wants to smother this guy by sitting on his face. She's wearing black shorts at the beginning but looses them quickly. After taking off the pants she can feel his face under her ass much better and enjoys riding his face. All of his begging and moaning is futile - this mistress isn't going to let him off the hook quickly!
Mistress Mercedes wrapped herself in cling film so he's totally unable to move and then sits down right on his face still wearing her pantyhose. But that's not enough for her so she puts his head into the pantyhose to sit directly on his face. In the end she takes off the pantyhose and smothers him underneath her great ass once again.