Sarah felt a strange pressure in her clittoris, then a sharp pain as it began to grow slowly, a head formed as it errupted from it's hood, Sarah's hands dropped trying to grab at it or push it back in, or just in reaction to the pain of the change. The chanage continued, soon Sarah had a penis instead of a clit, no external testicals. just a penis.
As Sarah was changing Jon recovered and managed to spot the stone, he rolled off the bed and grabbed it.
"I wish Sarah would stay where she is until I say 'I release you'" Jon shouted, still startled by his new feminine voice.
Jon moved across the room to get as far from Sarah as he could. He sat and thought about how to get back to something more like his previous form, and what to do about Sarah, for quite some time.
After she recovered Sarah looked at Jon and realised he had the stone back when she tried to move, she sat down quietly doing her best not break Jon from his thoughts fearing his retribution. She looked sadly down at her new equipment and just deflated inside, now she knew what Jon meant when he said the stone was dangerous. She was also dimly aware, and doing her best to ignore, that Jon's new form was attractive to her, from his breasts and curves to his slit. Sarah was now attracted to women.
After several minutes Jon spoke, "I wish I knew exactly what logic caused the changes to Sarah and I". And he knew. When Sarah had wished that he could feel what she was feeling the wish made him female so that he could experience the pleasure's fo being penetrated, but if he had no suitable partener he wouldn't be able to experience it, so Sarah changed too. They hadn't noticed but they had both reclaimed their inihibitions at some point during their changes, they had both let go already and though they were now less inhibited than before, they now had control over themselves again.
Jon thought some more, and concluded that he wouldn't be able to go all the way back to normal, he could get closer than he was, close enough that he might be able to live with it. And the wish was simple and obvious.
"I wish my body was as much like the one I had before Sarah came over as possible and that changing would be instant." Jon said, he couldn't undo Sarah's wish, but much of it's effects weren't strictly nesscary to fulfill the conditions of the wish, and he had no desire to experience the pain that came with his previous transformation.
The stone glowed and flashed, and at the moment of the flash both he and Sarah experienced a sensation of a discontinuity in time, the world was one way before it and another way after.
Jon looked down at his naked body, he still had his average size breasts, and a quick feel between his legs told him he was like Sarah down there. What he could not see was that his pelvis was still very much like a woman's in width and shape, but his body was otherwise restored. "Well could be worse", he said, enjoying the return of his familiar voice, he turned to Sarah, "Now what to do about you?"
