Clara heard the now familiar sound of the TARDIS materializing and ran downstairs, flinging open the door before the Doctor had a chance to ring the bell.
"Did you miss me?" he joked, as she rose up on her toes to wrap both arms around his neck. His hand stroked over Clara's hair, coming to rest on the back of her neck, which simply radiated tension. He pulled back slightly to see her face. "Hey, what is it? I didn't mess up again, did I? It has just been two days, like we agreed, right?"
She nodded.
"Then what is it, Clara? Tell me," he prompted.
"Actually, this you need to see," she replied, taking his hand and leading him over to the kitchen table, where her laptop was set up. She sat down and began to pull up photographs.
Intrigued, the Doctor knelt beside her so he could see the screen. Unconsciously, he draped his arm across the back of her chair, just lightly skimming her shoulders.
"The kids found these on the internet," Clara explained.
"Blimey," the Doctor breathed, "looks like it's time for me to update that computer virus again."
"What computer virus?"
"The one that removes all traces of me from the internet."
"Lovely idea, but they weren't searching for you, they were searching for me, and as you can see, they found me. All except for this one," she said, indicating the Victorian photo of herself that she simply knew had never happened.
"I can explain that. Sort of. Ish. Er, well, anyway, what did the kids conclude from all this?"
"That their nanny is a time traveler."
"Now that is what I love about children!" the Doctor crowed. "They believe the evidence of their senses. You show them photographs of their nanny taken throughout different moments in history, and they simply conclude that she's a time traveler. They don't muck about wasting their time trying to think up ways to convince themselves that what's right in front of their noses isn't. Unlike a lot of grownups I can think of."
Probably not even aware of what he was doing, the Doctor was gently twisting a long curl of Clara's hair around his fingers, and while the sensation was certainly pleasant, it wasn't helping her figure out how to broach the next topic…quite the opposite, in fact.
"There's a bit more," she added, blushing deeply, and trying to decide if 'alien' or 'boyfriend' was more embarrassing. "They think you're my boyfriend. And they're pretty sure you're an alien, as well."
"Oh, dear."
"And they want a trip in the TARDIS, or they'll tell their dad," she added in a rush.
The Doctor started to laugh, and Clara elbowed him in the ribs.
"It'll be fine, Clara, really. I'm a centuries old Time Lord…I think I can manage one short trip in the TARDIS with two kids."
"You really don't mind?"
"Not at all," he assured her.
Clara turned her head slightly at the exact moment the Doctor moved, and a soft kiss intended for her cheek brushed her lips instead. "Sorry," he muttered, sounding anything but.
"Don't be," she breathed.
They both whirled around as a spate of giggles erupted behind them.
"I told you he was her boyfriend!"
"I told you he was an alien!"
"Hey!" Clara and the Doctor shouted in unison.
