Jon was sucking on Karyn's boobs. There was a lot of milk in them. More than a lot, it seemed a vast quantity. Then as Jon sucked he changed. He's clothes remained the same but he became the old Jon. Then as he continued to suck he realized that the "rocket scientist" that was Sarah had worded her wish for him to remain her sissy boy slave until she released him. When he asked person to drain Karyn, Sarah had said it was ok, aka he got released and changed back to his oldself. That particular wish had an escape clause and Jon was now escaping.
Sarah was standing there mumbling to herself about what to do next. She heard Karyn scream that Jon was done yet. She looked up and only got out a "duh" before Jon sent her reeling to the floor with a right hook. This took Sarah by complete surprise, than again the sun coming up was a surprise for her some days, and consequently she lost her grip and the rock went shooting across the room.
It landed in the midsts of the people Sarah had modified. It was not lost on the group what that rock could do. The people and animals in the room converged on the rock as one. It was becoming obvious somebody had the rock as changes were happening everywhere. From the looks of Sarah, it wasn't too likely she was the one holding the rock!