Sorry it took so long :)
Fallen
Things were starting to slide into place in Sherlock's mind and he was appalled at himself for not picking up on it sooner. It had lurked in the corner of his mind but he had refused to acknowledge it.
"It's kind of a testament to our friendship," muttered John.
"If that's the case, then why isn't it The Adventures of Sherlock Holmes and John Watson?"
"Sherlock, you're the star here. I'm just the guy who takes it all down."
Sherlock hesitated. "…You said it wasn't finished?"
John looked at him honestly. "I certainly hope not."
Sherlock realized then just how hard he'd fallen for John Watson.
Prompt was from Hidden Forever, and it was: lurk