Mistress Carla had a servant who was unreliable and she did not like it. She felt that the best way for her to deal with those issues was to use her ass and her farts. So she turned the guy into a fart slave and she choked him with her farts. He tried to plead for leniency but she ignored him and went on with her cruel punishment to ensure it never happened again.
Goddess Nika wanted to avoid having sex with her husband because she was not in the mood. But she did not want to hurt him so she came up with a way to do it so that she achieved her goal. The mistress used her farts to do it and he was turned off so she did not need to worry about hurting him with her rejection of his advances.