The Doctor always travels with a companion, usually a human. But when he appears on a world that he has no prior knowledge of, he picks up a new companion. One that is not human, but a pony named Twilight Sparkle.
Now that the Doctor has a new companion, what crazy adventures will they encounter in space and time?
Note: The Doctor being used in this story is the tenth incarnation, and he is not a pony, he is the humanoid Doctor. And this is not a romance, it's an adventure story.