After a text conversation with Irene Adler makes Sherlock question his feelings for John, something in his mind changes. Now he can't seem to stop these very racy dreams, thoughts, and fantasies about John. How in the world is he supposed to deal with this?

When I get stressed or depressed about something, I take a piece of paper and write out all my thoughts to clear my head. Apparently Sirius liked the idea, because here is his attempt to do the same in his journal. This takes place after Goblet of Fire.