“Right, now then where to next”. This is the 8th incarnation of the Doctor. The Doctor had just left San Francisco after regenerating, and having a showdown with the Master. (Not to mention also snog a nurse).
He was overall happy with his new incarnation. He had long curly brown hair, and dark blue fur, he was an earth pony much to his displeasure as he wanted to become a pegasus. He also had a Victorian like suit.
He was sitting comfortably in his TARDIS. On the outside the TARDIS was a blue police box, but inside it was like a whole other world. It was a rather large Victorian style console room with some furniture, multiple bookshelves stacked with the Doctor’s favorite books, a record player, a fireplace, and a big chair with a side table next to it. That was the Doctor’s favorite place to sit. Not to mention in the center a large console. It had all sorts of levers and buttons on it.
The Doctor sat alone listening to music, having a bowl of Jelly Foals, and reading one of his favorite books the Time Machine. He had begun to think about some of his past adventures and realised he needed someone to travel with.
“Well it shouldn’t be too hard. All of the ponies love me, at least most of them. Now lets see here”. He was starting to think of all the different places he could find a companion.
“Hmm, not Manehatten ponies are too rough there. Not the Crystal Empire ponies there get scared easily. Ahh here we go Canterlot. The ponies there tend to be fairly nice, plus I get to see Tia again. Wonderful”. He got up to console and started to push and pull random buttons and levers.

“Canterlot here I come”! The TARDIS began to wobble, and the familiar wheezing sound began.

Meanwhile in Canterlot Princess Celestia was showing Twilight some of the royal duties. They were in a court discussion with a so called scientist.
"Princess with my new device I could help heal anypony out there", said the scientist. He had bright green fur with ragedy dark green hair. His cutiemark was of a microscope. "No more need for hospitals if I can get you to invest in my device".
"Well how does it work", asked Celestia.
"It takes certain parts of the body that are failing and replaces them with cybernetic enhancements". He pulled over an x-ray of a pony. "Notice that some parts of the body are enhanced causing them to function at 100%. We could also replace nearly every part of the body with cybernetics creating the ultimate pony".
Princess Celestia thought it was a sickening idea but held it in. "Now Tinker I think you're idea is very.....unique. If you give me some time I might be able to come up with a way to invest in your.....device".
"Say no more Princess just come to my lab if when you get the bits". He then hurried out the door.
"Princess you can't be serious", asked Twilight.
"Of course I'm not serious. That pony is mad, but you always need to let them down gently. Don't just throw them out immediately". Twilight was still getting used to all of this. She was caught on the spot when Celestia's guards showed up asking to see her. Twilight knew she would be in Canterlot for at least a month so she let Spike go stay with Fluttershy. She missed her friends. but she also knew that she must learn to take charge for Equestria. While wating for the next idiot to come in she heard a strange sound.
She didn't know what it was but Celestia shot up and began to run down the halls.

"Princess where are you going", she shouted as she ran after her.

Celestia knew that sound as she ran after it. It didn't take long until she found the source. In the middle if her study was a blue box. She recognized the box, she recognized the sound what she did not recognize was the pony walking out of it.
"I must learn how to land better", the Doctor muttered to himself. Once he looked up he started smiling. "Tia! Oh it's been a while I haven't seen you in years. Well, at least from my perspective, from your perspective it must have only been a month or two". He shut up as Celestia began to hug him.
"I've missed you Doctor."
"I missed you too Tia." Twilight came running in looking rather confused.
"Celestia why were you running, why is there a box in your study, and why are you hugging that pony"?
"Twilight calm down theirs a perfectly good reason for all of this", Celestia said calmly. "This is the Doctor he's an old friend of mine. Doctor this is my student and new Princess, Twilight Sparkle."
"Good evening miss Sparkle". He picked up her hoof and gave it a small kiss. "I'm the Doctor".
"Doctor who"?
"I'm just the Doctor. Now lets see what has changed since I've last been here". He began to walk but was blocked by Twilight's wing.
"Hold on, so you're supposed to be Princess Celestia's friend".
"Yes"
"And exactly how did you get in here without the guards noticing you".
"Well that's quite simple". He pointed to the box. "This is the TARDIS it takes me anywhere I want to".
"Oh please that box looks like it could barely fit you"
"Well it's quite bigger then it looks".
"Okay now that's just ridiculous"
"Now both of you stop", Celesta said firmly. "It doesn't matter how he got here, he just did. And it's been a while since I've gotten to see him". With that being said both of the ponies stopped talking. "Now Doctor come with me and I'll show you what's changed" All three ponies walked out of the room.
"I still don't trust him".

Author's Note

This is my first story so feel free to tell me any errors.