Thank you, anon! I started drawing your request and I accidentally on purpose made a Jane Eyre crossover.
“I knew you’d do me good, the first time I met you. I knew I wouldn’t mind being in your debt.”
…
“I am cold, sir.”
“Of course. And we agreed that you’d never be cold again.”
I may—MAY—be a giant sucker for John wrapped up in Sherlock’s coat.