"I actually prefer being John Watson. That is legally my name. I was in the military. I did go to medical school. All the things you deduced about me are true. I just also happen to be Merlin..." he said still not looking upmarket

After a moment of no reply, he looked up. Sherlock was staring at him a bit gobsmacked. He licked his lips and made a choice.

He moved over to Sherlock, put his hands on the man's face and kissed him.