Jon left the bathroom and headed to her bedroom, wondering whether or not her room had changed too. On the way, though, Zoe came out of her room and was stunned to see the new Jon. After all, part of Jon's wish stated that people would notice whatever changes happened. So from Zoe's point-of-view, there was a beautiful gothic female stranger standing in her house.
"Who are you?" Zoe asked. "How did you get in here?" She didn't see Jon change, so she didn't know that this girl was her brother, now sister.