So... it was that time again. The Doctor had to regenerate. But this time, it wasn't because his life was taken. No, no, not that. It was because he was at the end of his regeneration cycle, and the Time Lords had given him another.

It was confusing to you, as his companion, but you understood. You were also sad, as you had grown attached to this version of him.

"We all change... when you think about it." He began. "We're all different people; all through our lives, and that's okay. That's good. You've gotta keep moving, so long as you remember all the people that you used to be."

"I will not forget one line of this. Not one day, I swear. I will always remember when the Doctor was me."

Then, he reached out to take your hand. You took it, looking at him with teary eyes.

Then, he jerked backwards, and when he straightened up... there was a completely different man. This was the Twelfth Doctor.

He stood there shocked, just like you were. He was older than the last one. Taller, too. But his eyes still held that familiarity.

Then, suddenly, he doubled over as if he was punched in the centre of his stomach, and gasped out something that might have been hilarious in a different situation:

"Kidneys! I've got new kidneys!" He then added with an air of distaste, "I don't like the colour."