A/N A Secret Santa gift for brain-suck-inc on tumblr. I hope you like it!
Amy wandered into the control room of the Tardis. The Doctor wasn't there, but a quick glance through the glass floor revealed him to be in the swing seat below, fixing some of the Tardis' inner workings. She ran her hand over the console idly as she walked by, and noticed the Christmas Advent Calendar she'd bought for the Doctor at the beginning of the month. She also noticed that although it was only the 5th of December by her counting, all twenty five doors were opened. Sure enough, as she checked, she found that all of the chocolates were gone too.
She rolled her eyes, and trotted down the steps that lead to the cavernous space below the Tardis console, where the Doctor sat tinkering away.
"Doctor?" she asked, and he finally noticed her, whipping off his goggles.
"Good morning, Pond!" he said, beaming, catching her off guard with his oddly formal greeting.
"Good morning," she repeated, feeling like she was back in school. "Doctor, you know that advent calendar?"
"Yes?" he asked, his eyes wide and innocent.
"Did you forget that you were only supposed to eat one every day?" she asked teasingly.
"No," he replied, still innocent.
"Then why are they all gone?"
"Oh!" he exclaimed, as if suddenly realising what she was talking about. "I had a very busy night while you were asleep here in the Tardis. I've actually had twenty days since you went off to bed, Pond. I got a call from Churchill, had to help him out with some sticky business with German Silurians seeking asylum. Then I got sidetracked on Gorum, where I actually saved a family of Tiddlings from a giant Raccnoss monster. Visited Liz Ten, had tea with Elizabeth the First – who thankfully, didn't recognise me with this face. Saw River Song, had an excellent adventure with her – we got kicked out of three dances in a row! – and spent quite a lot of time admiring the Gardens of Helidan. So I had a lot of days, and on each day, I did what you said and had a chocolate."
Amy listened to this whirlwind explanation, her arms crossed. "So why have you got chocolate around your mouth?"
The Doctor licked his lips guiltily. "Ah. That was today's."
Amy raised an eyebrow, not believing him for a second. "You are a terrible liar."
The Doctor fumbled guiltily for a few moments, his fingers twisting around each other as he tried to think himself out of this predicament, anything to get him out from under the accusing gaze of the angry Scottish Amy Pond standing before him. Nothing came.
He sighed. "Yes. I am a terrible liar. Fine: I ate them all at once. But they were just so good!"
Amy frown melted into a huge grin as she laughed, then playfully punched his arm. "You think I don't know that? God, you're like a little kid!"
He laughed along with her, surprised by her reaction. "You're not mad?"
"Are you kidding?" she asked between giggles. "Three years in a row, Aunt Sharon had to buy me two advent calendars because I'd eat the first one in one day. She threatened not to buy me any more, so Rory decided he was gonna keep it, and only give me that day's chocolate."
The Doctor laughed. "Good old Rory!" Suddenly, his expression turned earnest and pleading. "Can I have another advent calendar?"
Amy laughed and rolled her eyes. "I came prepared: I bought you two to begin with. The other one's up on the couch in the console room."
The Doctor gave the biggest grin she had ever seen. "Amelia Pond, you are the best human in this Tardis."
"Doctor, I'm the only human in the Tardis."
"You're still good!" he shouted over his shoulder as he bounded up the stairs, beckoning for her to follow him. "Now then, where to today?"