Rachel sucked in another large breath, and held it for a second as he looked at Karyn. She smiled and nodded her approval, and he began: "I wish that all wishes made during Jon's swap with Rachel will only last until he turns back into Jon."
"Good safeguard," she commented.
"I wish," he continued, "for Jon to retain the smallest desire to be Rachel, even despite himself, until the next time I say the word, 'polyamorous'. That should keep us going for a while."
"I wish Jon would not suspect the rock of making any changes, even if he hears the wish. I wish Jon would not attempt to find the rock, and will not recognize it if he sees it. That will keep him from interfering with our wishes."
"I wish for Jon to recognize changes to reality as if he had heard the wish, unless I wish otherwise. Wouldn't be very fun if he thought the wishes were normal, or his own idea."