After losing running, climbing, throwing, and burping competitions to her obnoxious older brother, a young girl makes a wish on a falling star.

Monster Natalie gets angry with her little brother Alphonse when he starts eating her favorite book, but she doesn't stay mad for long.

Twelve-year-old Jamal has always lived in his twin brother, Malik's, shadow. All he wants in the world is to know, just for one day, what it's like to be his more popular, more talented, and more confident brother. So when a mysterious man named Dr. Facilier appears and offers Jamal the opportunity to do just that, Jamal jumps at the chance. But when he wakes up the next morning to find his dream has come true, he learns it comes at a terrible cost....

Alex compares his younger brother William with himself and concludes that because William is so different, he must have come from outer space to join this otherwise perfect family.

Third-grader Clementine tries to adjust to the news that her perfect family of four is adding a new brother or sister.

Tiring of a newborn sibling who demands all her busy mother's attention, Ruby gets bored with endless solo activities and imagines creative ways to make her baby brother disappear, adventures that become so much fun that she decides to tag along.

Mother Nature rouses her squabbling daughters, March, April, and May, so they can awaken the world and welcome spring.

Tired of all the trouble his no-good baby sister causes, John tells his mother the baby has to go and she agrees, but as John packs the baby's suitcase, he realizes there are some things he likes about his sister, too.

Iris' baby sister Rose is a very, very fussy baby, and Grandpa takes Iris out for a special day without the baby.