After arriving at Amy's house, they go up to Amy's room. When they got there, Amy told Lina to turn around while she put on the diaper. When she finished putting on the diaper she turned to Lina.
"How does it look?" asked Amy.
"Looks like a perfect fit." said Lina.
Suddenly, Amy's room disappeared for a split second, then reappeared as a baby girl'd room.
"What the hell just happened?" said Amy.
"I don't know." said Lina.
They looked around the room and discovered that it a baby girl version of Amy's old room. Amy looked at the wall where, before the change, a framed picture of she and Lina riding a roller coaster was hung. That picture was gone, and in its place was a picture of Lina helping Amy, wearing a diaper and babyish T-shirt, into a kiddie roller coaster.
"Look!" said Amy, pointing at the picture. "This never happened."
Just then Amy's mother came into the room.
"Oh, Lina! I didn't know you were here." she said.
"Mom, look at my room! Why has this happened!?" said Amy.
"Well, you certainly are talkitive, aren't you baby." said Amy's mother. "Do you need a diaper change?"
"What did you just say?" shouted Amy.
"Oh, my! Lina, I'm afraid I'm going to have to ask you to leave," said Amy's mother, "someone is being a grouchy baby."
Just as confused as Amy, Lina began to leave. Before exiting the room, she told Amy she would think of why this happened, and said she would come back tomorrow.