"Well mistress your "daughter" should be quite busy with her new job a prostitute."
Mary is caught off guard by your words. "W-What!?"
Her son Max comes walking down the stairs "Hey mom whats going o...?"
Max stops mid sentience and stumbles as his body begins to change. Turning from a guy to a pretty woman in a very slutty black outfit. After few seconds she steadies herself a stands up and smiles like nothings happened.
"Hey mom I'm gonna go buy some more condoms and work the streets. Should be back sometime in the morning."
She turns and leaves to grab somethings before she goes.
Mary looks horrified "What no. My poor baby boy."
Mary looks over to you furious. "What did you do to my son!?"
You fight to hold back a smile. "Well mistress you wished for Max or I guess we should say Maxie now, to have a job. But you never specified what kind of job so I took some creative liberties.
"Well screw that! I wish for you to turn him back to the way he was right now!"
"Sorry but it's against the rules to undo a wish. (A lie but it's not like she'll know.) Maybe you should try a different wish?"