In a separate universe, Sunset Shimmer and Twilight Sparkle were born into the world as alicorn princesses, twin daughters of Empress Celestia. One day, they were sent away to Ponyville, where they were destined to meet 5 special ponies.
As an immortal alicorn, Celestia finally got to experience the joys of motherhood. However, there's one other thing she became familiar with during her long life