//------------------------------//
// Doctor by The Princess Rarity 
// Story: Princest is Wincest: A Lunestia Prompt Tag Collab 
// by TheWraithWriter 
//------------------------------//

Doctor by The Princess Rarity

It was deadly silent on this cold autumn evening. The trees were bare, a piercing wind coursed through the air, and it was eerie outside. Luna adjusted the long multicolored scarf around her neck, and she shivered.

"Where have you been?" a harsh whisper suddenly said.

Luna's eyes went wide, and she looked up to see her sister standing on the balcony, looking down at her disapprovingly.

"Celestia, I - I-" Luna stammered. She couldn't tell the truth; could she?

"You've been gone for three days!" Celestia shot back. She fluttered down to the ground and landed down next to her younger sister, who was surprised when she was hugged. "I was worried sick." She noticed the scarf and raised an eyebrow. "Where did you get this ridiculous thing?"

"From a friend," Luna said wistfully.

She looked up, and noticed a flash of white and blue in the night sky. Her smile twitched, and she sighed.

Celestia shook her head. "You can't keep disappearing like this," she retorted. "We have a nation to rule."

Luna nodded. "Yes, Tia," she murmured.

-xoxo-

"When will you ever tell me where you're going?" Celestia asked. "I don't understand it; you run off and then you come back, with the strangest stories. I have a feeling that this friend of yours isn't exactly stable."

Luna softly chuckled. "He is," she assured. "But the reason I don't tell you," She smirked. "It's because I don't even know."

Celestia's eyes went wide. "What?" she inquired. She grabbed her sister's hoof before she could run off. "Luna, explain. You've done for this so long, ever since before your banishment and now that you're back, you're running away again? You have to tell me something. I'm entitled to know."

Luna hesitated.

"He's wonderful," she sighed. "He even visited me when I was on the moon. Equestria wouldn't be the same without him."

"How?" Celestia murmured.

"If I told you why, you would accuse me of being insane," Luna admitted.

Her tone was strangely serious, and it took a moment for Celestia to realize that her sister wasn't kidding around. She stammered, unable to say anything. And even if she wanted to, she was cut off by a loud whirring noise, and right there, in the center of the Castle Hall, something materialized right then and there.

Celestia's jaw fell. "What in the world is that?" she muttered.

"It's a police box, can't you read?" Luna mused. She laughed when her sister was even more surprised as a pony emerged from the box. "I told him not to land here."

"Legs! I've still got legs!" the pony yelled, in a vaguely Trottingham-sounding accent. "Does anypony have a mirror?" He felt his face, and squished it in between his hooves. "Oh, please don't tell me I got old."

"You're still young, Doctor, no worries," Luna spoke up.

"Ha, wonderful," he said. He noticed Celestia, and gave a curt nod. "Hello, ma'am. Are you the lovely sister Luna speaks so highly of?"

"Yes, I am," Celestia replied shakily. "Who are you?"

The pony extended a hoof for a shake, but he fell down. "Damn this new body," he muttered.

Luna helped him up, and smiled at her sister. "This is The Doctor," she announced. "He's... well," She gave a shaky grin. "He's a time traveler."

"That's right," The Doctor said proudly. "All of time and space, anywhere and everywhere you want to go! All courtesy of the 'ole girl here," He pointed to the police box, and smoke was starting to billow out. "It's bigger on the inside, and right now... I wouldn't advise going inside."

Celestia blinked slowly.

"Doctor, I think we broke her," Luna muttered.