The Elephant in the Room by kantayra (PG-13)

[scienceofdeduct.livejournal.com]

Fandom: SHERLOCK
Pairing: John/Sherlock (asexual)
Length: 4500+ words
Author on LJ: kantayra
Author Website: kantayra_fic and AO3
Why this must be read:

"These two people do love and kind of need each other in a slightly dysfunctional way, but it is a relationship that works." So says Martin Freeman, Benedict Cumberbatch, Mark Gatiss and Steven Moffat—these two men do, in fact, love each other. John is sexual, and figures he must be interested in Sherlock sexually. But, as Sherlock Holmes teaches, after eliminating the impossible, whatever remains must be the truth. John comes to the same conclusion. You really can become asexual for the right person.

The Elephant in the Room
On AO3.