PAST LIVES
Sophie was born to run. Not in the American sense of things, rock-and-roll and police chases, but in his way, the grinning wild rollercoaster way. He held out his hand and she took it and they ran. It seemed like destiny, or opportunity, or chance, or fate. Any way you put it, it was perfect.
So they travelled across space and time, saving the world. Well, sometimes the world—well, occasionally the world—well—
Anyways. She was a thirtieth century girl, and she liked the no-slowing-down pace of life with the Doctor. She liked stepping through those impossible wooden doors and not knowing what was going to be beyond them. She liked meeting new species, and seeing first hand things that shouldn't—couldn't—exist. At the end of a long adventure, she liked a relaxing swim in the library. And even though the Doctor teased her about it, someone had to stock that enormous wardrobe room of his. He was just lucky to have chosen a lady with such excellent taste as a companion. Planet-of-the-Shoes, she's ready.
They had a good run. Wild and laughing and dangerous and terrifying and absolutely wonderful. She loved every minute of it.
But all good things come to an end. Eventually, she got stuck in a parallel universe, and he couldn't get her back without risking a tear in the space-time continuum. She just smiled at his technobabble and told him it was okay. She could take care of herself. She'd taken care of him just fine. Heck, she could save the bloody world! They both laughed, but then it was time to say goodbye. The Doctor was bad at goodbyes, so they skipped that part.
Sophie said thank you instead.
And then the hole in the universe closed and the Doctor and the TARDIS were gone, and so were her adventures with them.
But that was okay. She'd have new adventures.
She'd kill for a bit of psychic paper, though.
A/N: I'm going to do a brief little story with each of the team having crossover origins, and where I think they came from. I have everybody but Nate already written-any suggestions for him?