Jon walked back to the tent deep in thought. Since, the Bunny costume had disappeared, he had to believe that it had "disappeared" along with his female body when he restored himself. That meant that it had been created at the time of his transformation, and his own clothes had been stored inside some kind of buffer inside the remote. That being the case, then what he was wearing before he changed himself back must now be within the same buffer.
Karyn was trapped within the remote somewhere.
Going back inside the tent, Jon picked up the remote from his sleeping bag where he had tossed it. He examined it closely, saying "So, how do I get her out?"
He looked over the buttons carefully, before spotting the PREV button. "That must mean 'Previous'," he decided. "If I use it on myself, maybe it'll turn me back into a woman, and put me back in the clothes I had on at the time." He sighed. "Only one way to find out."
He stood in front of the mirror again, pointed the remote at himself, and pressed PREV.