[…] when the Doctor collapses after being shot with lightning/the Master’s life force, the Master runs over to catch him (before dropping him, disgusted with himself). When asked about the Master’s reaction here in the online commentary for this episode, Russell T. Davies remarked, “Well, he loves him really.”
—  [source]

Thoschei ( Doctor/Master or Ten/Simm ) is Canon ?!
  • DOCTOR:You're a genius. You're stone cold brilliant, you are. I swear, you really are. But you could be so much more. You could be beautiful. With a mind like that, we could travel the stars. It would be my honour. Because you don't need to own the universe, just see it. To have the privilege of seeing the whole of time and space. That's ownership enough.
  • MASTER:Would it stop, then? The noise in my head?
  • DOCTOR:I can help.
  • MASTER:I don't know what I'd be without that noise.
  • DOCTOR:I wonder what I'd be, without you.
  • MASTER:Yeah.

Doctor/Master Human AU: John Smith & Harry Saxon  (1/?)

"Just take a break, Harry.Come on. I’ve got tea."               
          “It’s a national crisis. Do you really think you can solve everything with tea John?”
"Yep. Without any doubt."
          “You’re hopeless.”