Applejack's fortune says that honesty is fattening, which it sounds weird and ridonculous. Now that every time she uses her honesty, she grows 50 pounds fatter. Sure she believes that honesty is the best policy, but it's not always the best solution to every problem. She knows that she'll have to lift up the curse somehow before her health gets serious!

Note: [spoiler]This story contains weight gain.[/spoiler] If you're not into this, please don't read it.