One day you discover that being to close to a girl's farts will cause you to rapidly shrink. The more disgusting the fart the more you shrink. The longest, loudest, smelliest, wettest farts will make you shrink the most. There is no limit to how small you become but the smaller you become the more gas it takes to shrink you. Over time you will slowly grow back, but another blast of ass gas will make you shrink right back. This is honestly just a plot device to let people have the main character be whatever size they want. It also allows for the characters to be unaware that anything will happen until it's to late. So go ahead and use it as much as you like as long as you write in the conditions correctly (gas=shrink and time=growth).
Rules:
1. No death and no eating or flushing the main character down the toilet.
2. No males other than the main character.
3. Chapters must be at least 1 paragraph.
4. No characters under 18
If a chapter breaks the rules I will try to rewrite it but if it's to far gone it will be deleted.