You will be given a definition of a task first, then some input of the task.
In this task, you're given five sentences, numbered 1 through 5. Your job is to generate a title for the story that makes complete sense. The title must be short, with less than three words, use simple language, and include the main topic of the story.

Sentence 1: Theo was the first kid in school to have body hair. Sentence 2: He was always so embarrassed when changing for PE. Sentence 3: He tried to hide it from everyone because he thought he was a freak. Sentence 4: Until one of the popular kids spotted him changing. Sentence 5: He then told everyone how cool and manly Theo was.
Output:
Puberty