Mistress Mystique was about to fuck this guy but she got the idea to test his desire for sex by pissing him off. That is why she used her fart fetish to do it. The mistress asked him to smell her farts and the guy took one look at her curvy figure, her hot and big ass as well as her big tits and he smelled the shit out of the farts before fucking the crap out of her.
Mistress Mystique wanted to dominate this guy and she had to make sure that she did it in the best way possible. That is why she had to ensure that she facesat this loser and that she farted on him. Mistress Mystique enticed him with her big ass after which the mistress got him to lick as well as to smell her farts and nearly choked him in the process.