Once upon a time, there was a little boy named Tim. He had a whistle that he loved to play with. One day, his friend Sue came over to play. Sue saw the whistle and thought it was fun. 
"Can I borrow your whistle?" Sue asked Tim. Tim was a little fearful because he loved his whistle so much, but he wanted to be a good friend. So, he said, "Okay, you can borrow it today."
Sue played with the whistle all day, and they had lots of fun. But when it was time for Sue to go home, she forgot to give the whistle back to Tim. Tim was sad, but he knew Sue would bring it back the next day.
The next day, Sue came over and gave the whistle back to Tim. "I'm sorry I forgot," she said. Tim was happy to have his whistle back, and they played together with it all day. They learned that sharing can be fun, even if it's a little scary at first.
