"Rose?"
The ninth incarnation of the Doctor tugged on his leather jacket, striding into the control room in search of his companion who he hadn't seen for a few hours now.
"Rose, there you ar- What are you doing?!"
The Doctor hurried back, letting out a strangled cry at the sight of Rose's face, distorted into a manic expression as she crossed her eyes and stuck out her tongue at an unnatural angle. The Doctor's hearts hammered in his chest. What if she had caught some sort of infectious disease?
He rushed over to his blond companion, grabbing her face between his hands, fear running through him.
"Oi!" Rose's face smoothed out from it's previous distorted expression as she looked up at him in annoyance. "Get off, ya big lump! Get out of my picture!"
"Pic- Picture?" The Doctor took a step back, bewildered.
"Yeah," She looked at him as if he was stupid, something the Time Lord was not accustomed to. "Snapchat, you daft alien! I'm snapping Mickey!"
The Doctor gaped at her. "But why the face?!"
"You never take a pretty snapchat, Doctor," Rose sighed, rolling her eyes. "Where's the fun in that!"
She gazed at the screen and let out a loud laugh, clamping her hand over her mouth as her eyes danced with mirth.
"Oh, I am so screenshotting this!" She grinned, tongue poking out from between her teeth.
"Snapchat?" The Doctor mumbled, scratching the back of his head in confusion. He left the laughing Rose Tyler to her phone as he went to the Tardis library.
"Okay, Old Girl," He addressed his Tardis, scanning through the covers of various books. "Show me something that explains the term, 'Snapchatting'."