Mistress Lyla came home and found her boyfriend masturbating. She abhorred it and she could not imagine that he had been doing it instead of having sex with her. She did not want it to affect their sex life and she slapped him as punishment. She did it so cruelly that his face turned red and she knew it was not only painful, but it was an incentive for him to stop.
Mistress Gaia found out that this loser had been doing the kind of things they had warned him about. The mistresses did not want to deal with him so they beat his ass to make sure he changed what he had been doing. The mistresses slapped the shit out of him and they did it while he was naked. He learned his lesson and changed the way they wanted him to.