
Once upon a time, there was a small boy called Jack. He loved playing all day long and never wanted to sit still.
One day, while playing, he noticed his mum wearing a new dress. It had a zipper in the front, and it looked very fit. She had to resist zipping it up because it was too tight.
"Mum, what's wrong?" Jack asked.
"It's too fit for me," she said. "I have to resist zipping it up."
Jack wanted to help. He grabbed the zipper and tried to make it fit. He wriggled and pulled, but it still didn't fit.
Mum smiled. "Thank you for trying, Jack. We'll have to find a bigger dress for me." 
Jack was happy he could help his mum and they went off to find a bigger dress. And they lived happily ever after.
