Mistress Iside is an impatient person. When she noticed that she had a slow slave, she had to teach him how to change that part of himself. But he did not change as fast as she wanted and expected him to. So they had a problem and to send him a message, she chose to fart on him. She nearly choked him as she farted on the poor guy without caring.
This guy was not good company. He bored the hell out of mistress Iside and she felt that the best thing to do to him was to humiliate him which she did without any hesitation. The mistress turned the guy into a fart slave and she had fun dominating him and making him him smell her farts. The guy was lucky she did not make him lick her dirty asshole.