It was somewhat awkward to smile and be kissed at once, but Watson couldn't help it, just then. He'd fretted over the pipe a little, but he could surely recognise, after so many years, when Holmes was interested in something, even without being told that was the case. Watson did not always feel confident of his ability to read clues in a crime scene and pick out every necessary detail, but he did know Holmes. A reaction like this was the very best that he had hoped for, and it was astonishingly gratifying to see it now before him.

"I am glad you like it," he murmured, somewhat breathlessly, before kissing Holmes again, his hand upon Holmes's waist. "Should I take it that I managed to surprise you?" He was gently teasing, but he did honestly enjoy being able to do that.