I do not own these characters. They belong to the BBC. Major spoilers for The Reason is You.
In the Name
The Doctor had slurped down three-quarters of his Ekudesian lactashake before he noticed that Jack was staring at him. He ceased slurping and looked up. "Something wrong?"
"No, I was just thinking," Jack said before a long drink of his lactashake.
The Doctor resisted the urge to tease him. "Oh?"
"I don't think I can call you 'the Doctor' anymore."
The Time Lord frowned slightly. "Why not?"
"Because now I've also known you as Daniel."
"That was just a false name," the Doctor pointed out.
"I know. So's Jack." He shrugged. "I know you chose the name Doctor, but that was after you'd been Daniel."
The Doctor nodded. "I suppose there's only one thing for it then."
Jack took another sip of his drink and raised an eyebrow. "What's that?"
"You'll have to use my real name."
Jack's jaw nearly hit the ground. "You trust me with that?"
"How about a trade? I'll tell you my real name, if you'll tell me yours, Captain."
Jack grinned. "It's a deal. Only to be used in private, of course."
"Of course," the Doctor agreed. He leaned over to Jack. The human's heart hammered in his chest as he felt the Time Lord's lips against his ear.