I have a terrible feeling that this story has been done before, so tell me if it has but let me say straight up that I am not copying anyone, this entire story is a spur of the moment thing, please leave a like and follow if you like this story and if I get enough it will be bumped up on my schedule for regular updates.

Chapter 1: The Doctor and the Pony

Emptiness, it was the only way the Doctor could really put it, emptiness. It had felt like this in the Tardis before, for brief periods however ever since losing Donna the place that he called home just didn't seem alive enough for him anymore, he had a brief moment of happiness when he reunited a man with his son on Christmas day and stopped a cyberman invasion, but when he met a woman who he thought could refill the hole that Donna had left it turned out she was a thief and could not be trusted, that had stung him and he was back to moping about the Tardis, just seeking a friend, a friend he knew he shouldn't have, as he knew that any person he took with him would end up dead, hurt or changed forever.

Donna had come back into his life when he needed her most, when he just needed a mate, no companion who developed feelings for him and he would eventually develop them back like Rose and even Martha to a degree, no, just a friend like Mickey or Sarah Jane, that was what Donna was to him, a friend he could see himself travelling with to the end of her days.

When you lose a lover it was supposed to be harder and when you lose a friend it should be easier, but the way the Doctor lost her stuck at him in a bad way, she would never remember the great, amazing things she did or him and she would just return to her old life, there was a mercy in that he thought but it seemed worse in his perspective.

He returned himself to looking over the last thing he had in this entire universe, the last piece of his home, he stroked the Tardis on occasion, something Rose had pointed out to him but he no longer cared, he was at the stage where he constantly referred to it as 'she' but there seemed to be something wrong his Tardis this time, the screens were showing some sort of weird energy around the Tardis that was affecting it's trajectory through the time stream.
"Well that's odd" the Doctor said aloud.

He looked over the energy source which was being described by the monitors as unknown "How is it unknown, that's not possible you have information on all the energy types throughout the galaxy."

The Doctor quickly ran around the centre of the Tardis checking consoles and screens making sure his ship wasn't in immediate peril, but he was now frustrated that he wasn't able to identify what appeared to be dragging his Tardis to a new destination, he instead decided to take a new approach and see exactly where it was dragging him to, it wasn't pretty, "How, how is that possible? We closed them all up!"

Before the Timelords went extinct they had closed up all the cracks in the universe, however one must have slipped past them as about two years ago the Doctor, Rose and Mickey fell through one into an alternate universe and discovered a new race of Cybermen, the Doctor was certain this time he had taken care of it but according to the scanner someone or something was pulling him right down into a new crack which had just formed, the Doctor watched in awe of the event "This… this isn't possible, how can someone just rip open the boundaries of the universe like this."

It wasn't something he could comprehend or even fight against as he was being pulled down through the crack, the central console of the Tardis was starting to set alight, the Tardis was shaking uncontrollably sending the Doctor all over the place until he landed on the coach near him. He held on as tight as he could as he watched his home, his everything get thrown around like a ragdoll, he felt helpless to do anything all he could do was hope that when the Tardis landed that it wasn't to damaged to the point where he could never leave from whatever world he was about to land, then suddenly it all went black.

---

The Doctor awoke in what he could only describe as an uncomfortable position; he got as quickly as he could and checked himself over to see if anything was broken, with that sorted he quickly looked over his precious Tardis for the same reason, "Nothing broken, everything in working order, good."

He looked over everything a second time to be sure and again the Tardis was telling him it was functional, his attention was drawn to the Tardis door, it wasn't like last time when they were stranded and they had to venture outside to have a look at the situation, this time he could just leave right now and no one would be the wiser but there was something drawing him to the door.

He could be in some lost dimension, a place that never was but he couldn't help himself when there was an opportunity for adventure to be had, for the first time in a while he smiled to himself, a smile he always gave when he felt something good was about to happen, he grabbed his brown jacket which he had grown a lot of affection to over the years, he wiped his face with his hands and he opened the door to the Tardis on his way to a new adventure.

---

As soon as he opened the door he could tell that he was in some kind of tree, however it had been hollowed out to make what appeared to be a library, the Doctor liked it "Wow now this is cool."

The Doctor looked down to see what looked like a purple pony in front of him, the pony had her mouth opened in shock to what she was seeing, the Doctor was immediately fascinated by this creature and in his usual manner he put on the biggest grin he could and said "Hello!"

She looked familiar to the Doctor, however he couldn't place his finger on where he had actually seen her before, he got down on one knee facing a visibly shocked pony, he brought out his sonic screwdriver to check her biology in order to ascertain that what he was seeing was indeed real. The pony in front of him backed away a couple of paces in fear and as soon as the doctor finished he felt the need to apologise "Sorry about that just needed to see if you were real."

He examined the analysis further and some weird unexplained energy was centring on the horn of what the Doctor guessed was a unicorn, suddenly it hit the Doctor exactly what he was dealing with. He had spent a long time learning about popular trends on earth, from music and the Beatles to books and the Harry Potter series, he actually remembered crying at the final book but one thing that he also remembered was popular cartoons, transformers, family guy, Ducktales and of course My Little pony: Friendship is Magic. Even the Doctor was as you would say 'a Brony' and he was truly loving this, this somehow managed to make his smile grow wider "Why hello there Twilight Sparkle."

Twilight hearing this finally managed to shake the cobwebs enough to get a sentence.

"OK I want you to answer four questions for me; one, who are you? Two what is that blue box? Three what are you doing in my library? And four how did you know I was Twilight sparkle?"

The Doctor stood up now looking down on her, he looked back at the Tardis.

"Oh that, oh that's just nothing, well nothing important anyway, well nothing dangerous anyway, well a little dangerous but still… anyway I haven't introduced myself have I? How rude of me, I'm the Doctor."

"Doctor? Doctor who?"

"Oh just The Doctor."

Twilight now had a chance to scan what she was looking at, it was a humanoid figure that was wearing a jacket and vest combination with a tie and trousers.

"Actually I have a better question, what are you?"

"Oh I'm nothing important just a Timelord but that wouldn't mean anything to you."

"Would that mean that you control time?"

"No I just travel through space and time and… I've clearly said too much."

The Doctor realised that Twilight's expression had changed from shock to entranced.

"Oh my gosh, how does your device work? What does a Timelord do? How many are there of you?"

The Doctor was being bombarded with questions and slowly he kept backing up to the door of the Tardis, readying his escape.

"Miss Sparkle I would love to answers your questions however I feel that I have overstayed my welcome, goodbye."

He quickly opened the door to the Tardis and locked it behind him, he put his ear to the door and could hear Twilight just outside the door, he thought about how he could be in a children's show, he soon remembered that there was in fact an infinite amount of universes with an infinite amount of possibilities and one appeared to be the show being real, he decided the best course of action would to just leave this time around, maybe it was from recent events that affected his decision but in the end he knew he should go before he messed something up in such a peaceful world.

He got to the central console again setting the necessary switches, "There we are; now when we go through the crack to leave it should close up behind us."

He looked up and realised that he was talking to himself, he had been so used to talking to someone about all this, he walked slowly to the leaver that would send him off back to his universe, he looked up one more time and said quietly to himself "Goodbye Ponyville."

He pulled the leaver down and… nothing happened, the Tardis just didn't move, no noise, no nothing he looked around and breathed heavily "Well that's… that's not good, not good at all."

This story takes place between the planet of the dead and the waters of mars, what will the Doctor do now he is stranded in Equestria, like the story is you want regular updates, and of course follow also to get them.

Please say what you liked and what you didn't like thank you, Praise + constructive critism welcome!