That wish was good, but Jon had another fantasy he'd kept secret until now -- one deeper than just being able to sleep with any woman he wanted. It had always been impossible without magic, but now that he had this wishing rock, now was his chance to enjoy his fantasy!
Jon picked up the rock. "I wish that when I ask a woman if she wants to be my fuckpet, she'll transform into one. Her hands will become feet and her back will shift so she has to walk on all fours. She'll be aroused at the thought of me, and be inclined to do what I ask, but she won't be my slave and she'll keep her original personality. Despite these mental changes, she'll be fully aware of the change, but everyone else in the world except for me and Karyn will think this is a perfectly normal state for her, and they won't mind if I have sex with her at any time. I wish that when I ask one of my fuckpets to stand up, they'll be transformed back to normal, and the rest of the world except for me Karyn and the fuckpet won't have any memory of the change."
"I wish that if I tell a woman that she's my fuckpet, she'll be transformed just as though I had asked her, but she'll also believe that this is her normal state. If I tell one of my fuckpets to stand up, she'll be changed back as though I had asked her, but she won't remember being my fuckpet. Any sexual activities we did while she was my fuckpet will be replaced with some other memory that makes sense."
Now then... what to do?