The thirteenth doctor

"Who are you?" said the blonde-haired woman who was aiming a weird beam of light at Gwen's direction. "Why do you pretend to recognize me? I have never seen you before in my life."

"I'm sorry," said Gwen. "My name is Gwen Stacy. I come from a distant country. I know we have never met but I have seen you in a lot of movies. In fact, I must have watched you in Attack the Block at least a dozen times."

"Somehow I think that's unlikely," said the blonde-haired woman. "I was never in the movies and I certainly would have remembered being in something called Attack the Block."

"Well, I know you from somewhere," said the original Gwen. "Perhaps I saw you on TV."

"You must be from an alternative universe," said the blonde-haired woman.

"Wait?" said Gwen. "Is it that obvious?"

"Are you kidding?" asked the blonde-haired woman. "A woman like you dressed in an outfit like that? And what, a resident of a country full of radioactive moths is not going to at least try to dress in something with metallic fibers?"

"Well, you don't appear to be wearing anything with metallic fibers," said Gwen.

"Well, that's different," said the blonde-haired woman. "I'm the Doctor. I was born to take risks like that. Anyway, let's get you inside before you get the sniffles."

"Excuse me," said Gwen, "but did you say you were a doctor?"

"No," said the blonde-haired woman, "I said I was the Doctor."

"The Doctor Wh --" Gwen started to say but the woman who called herself the Doctor interrupted her. "Don't you start. I get enough comments like that from Clara. Anyway, come along."

"But isn't the mansion entrance this way?" asked Gwen, pointing in the direction of the patio.

"We're not going to that mansion," said the Doctor. "We're going to my TARDIS."

"What's a TARDIS?" asked Gwen.

"Oh, you'll find out," said the Doctor. "By the way, what's your name?"

"Gwen Stacy," said Gwen.

"Glad to meet you, Gwen Stacy," said the Doctor. "How are things in the 26th century?"

"I wouldn't know," said Gwen. "I'm from the year 2019 myself. By the way, you wouldn't happen to have any extra clothes in this 'TARDIS' of yours?"

"Of course, I do," said the Doctor. "Anything else you might need?"

"Well, a super-collider would be nice," joked Gwen.

"Sorry," said the Doctor. "The only thing I have that's close to that is a time machine."

"That's okay," said Gwen. "All I really need is -- Hey, wait! You have a time machine?!"

"Doesn't everybody?" asked the Doctor.