Growing up can be hard sometimes... especially for the pony who never saw it coming.

Sweetie Belle was always Rarity's innocent (albeit a tiny bit troublesome) sister. The filly wakes up one day to find new, unexplained feelings coursing throughout her body... feelings which had always been there, but were a lot stronger now. If Rarity only knew exactly how quickly Sweetie Belle was growing up... why is it that none of her friends have grown up this quickly?

Under Mature for Adult Themes and Sexuality.