This guy has a fetish for big asses and these mistresses have big ones. They have the exact kind of asses he loves. He wanted to bang the shit out of them but the mistresses did not think so. They thought quickly and came up with a solution. They told him to endure their facesitting fetish then he would get the chance to fuck them. He agreed. But they tricked him and they took a shit on him instead of just facesitting him.