Gymnastic girl is about a girl name Janet, that wanted to be a sport girl, but her mom laura did not let her. They say she wasn't one of those people that like doing sports. Till one day she did a backbend, then she surprised her mom and now she was a sport person that was in gymastics

After the death of his wife, Simon Fuller moves to a new home, with his two daughters. One day, his daughter introduces a new imaginary friend - Nathaniel. She 'gives' Nathaniel to her father, telling him he can keep the boy "forever". Simon tries to find out who the boy really is, but is unable to. Questioning his daughter, she tells him, again, that it's Nathaniel, but he prefers to be called by his nickname, Mr. Boogie.