Starlight Glimmer and Sunset Shimmer have been experimenting with their powerful magic. One afternoon, Twilight walks in while they're inside the Castle of Friendship casting spells, and in a freak accident, Twilight is abruptly turned into a small filly.

Is Starlight and Sunset worried about what they've just done? Not really.

Actually, they're too busy admiring, and snuggling the adorable filly Princess Twilight to care about their looming consequences.

Poor Twilight...