No way out?

"There's no way to reverse this you bitch!" John said as he collapsed down to the floor. "The wishes are irreversible, we're both stuck like this for the rest of our lives. Congratulations, we're both freaks"
Sarah walked over to John to gloat, "Well it serves you right for doing this to me" Even though the girl sitting next to her was still three times her size and was in fact taller sitting down than she was standing up she wasn't afraid. She could see that she had the upper hand to an extent, while they both had to live their lives as the smallest humans alive, at least she had always been a girl, John had so much to adjust to, she hoped she would be able to see it all. An evil smirk crossed her face as she reached out to John, seemingly to comfort him and apologize. John saw this and seeing how small she was didn't see a threat as she placed her tiny hand on his shoulder. He didn't see the other reach down for her stomach until it was too late. With her hand on his stomach, she said, "I wish the stone was no longer in John's stomach and in my hand" as John grabbed her around the waist and pulled her away she felt a warmth in her hand and looking down, saw the stone. John, noticing this grabbed her tiny hand in his and quickly tried to think of something.