This guy wanted to get a taste of BBW awesomeness and the mistresses did it with their big asses. They gave him a taste of their asses as they smothered him with them. He nearly choked as the mistress sat on his face and their big butts covered his head and face completely. The guy peed his pants before the mistresses stopped smothering him and let him catch some air.
When you have a huge ass like Mizz Thyck has, you can do a lot with it and she chose to use it to tease and also to punish. It depends on what she feels like doing. Today she felt like crushing this loser and she did it by weaponizing her ass. He was smothered and choked by what she did and that is how he learned never to go anywhere near her.