Swapper Slide: Back to normal or are they?

Heading into Jon's bedroom, Jon picked up the small wooden box and took the stone out. "Okay" said Jon, "Lets fix things." Clutching the stone, Jon made a wish, "I wish we were swapped back to normal." There was a bright flash from the stone, and Jon and Karyn were forced to look away. Jon looked down and was happy. He could see the bikini bottoms hugging his crotch as normal. "Thank you Jon." Karen said and almost kissed him there and then. Jon could see the bulge twitch a little bigger in Karen's shorts. It made him a little wet himself. It appears the stone made them think the current situation was normal.