My name is Twilight Sparkle. When I was a little filly studying under Princess Celestia in Canterlot, I met a strange pony with a Blue Box. His name was the Doctor. He looks like a normal Earth stallion, but he's a Time Lord. His box is called the TARDIS, and it can go anywhere in time and space. When I grew up, he came back for me. I ran away with him, and we've been running ever since...
((NOTE: A basic understanding of the British television show, "Doctor Who", as well as bit of knowledge of the show "Torchwood", is helpful for full enjoyment)).
Credit for Cover goes to ~TheTitan99 on deviantART