In an effort to keep her mind occupied, Twilight Sparkle decides to delve once again into the grand mysteries of Pinkie Pie. This time, Twilight's focus is on her claims of growing up on a rock farm: like so many things related to Pinkie Pie, the idea that somepony could grow rocks as an agricultural product makes absolutely no sense. However, the investigation eventually leads Twilight to a rather... surprising discovery.

This is the first story in The Petriculture Cycle.

Artwork by Page Turner. Now with a TV Tropes page.

Dimly it occurs to her, somewhere through the haze of magic and the relentless onslaught of images, that the spell has both gone very right and gone very, very wrong. A TwiPie story.

Rarity has gone to sleep, and the Cutie Mark Crusaders find themselves extremely bored. What could they possibly do? Play a slumber party game, of course! An innocent game of truth or dare turns into something not-so-innocent when Apple Bloom gives Scootaloo an interesting challenge... Soon the three fillies find themselves learning a whole lot about one another, themselves, and certain taboo parts of life.

[WARNING!] Borderline mature!

Co-op with Criticul

An unfortunate event gives Princess Celestia a fresh view on her life by forcing her to see the world from a very different viewpoint. With Equestria changing around her, she is faced with a personal crisis... if she can ignore how cute a certain lavender unicorn suddenly looks to her.

Featured on Equestria Daily!
And some site about horse porn!
Liked this story? Read the sequel.
And the story this was a sort-of prequel to.