"You're a very lucky man," the War Doctor observed, nodding towards Clara.

"We're not like that," the purple tweed Doctor assured him, blushing.

"Oh, do get your mind out of the gutter!" the older-appearing man snapped. "I only meant to say that you're lucky to have a friend to travel with you. It's…I've been alone for so long. Since the end of my last regeneration." A bitter expression twisted his features, as he remembered brave, defiant Cass.

His counterpart looked at him with a kindness and wisdom that belied his youthful appearance. "It won't happen until you regenerate again. And even then, it'll take a while. But one day, you'll be clattering about the place, looking for trouble, and you will meet someone who seems to be the most ordinary person in the universe and…"

'And she will become your universe,' he finished silently.

"And?"

"I wouldn't want to spoil it for you," the current Doctor replied hastily, looking just a touch misty-eyed.

A hint of sly mischief twinkled in the War Doctor's eyes as he glanced back at Clara. "You know, you are both of the age of consent, in your respective societies…"

"Excuse me?"

"Oh, never mind," the War Doctor replied, with an airy wave of his hand.

"Never mind what?"

"It would never work out. Clara is far too mature for you," the War Doctor finished smugly.