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Top 10 Best Mature Sherlock BBC Fanfics

The 10 highest-kudosed mature fanfiction works in the Sherlock BBC fandom on AO3. Filter: mature-rated.

Sherlock BBC Sherlock BBC 123k combined kudos 737k words

Top 10 Mature Sherlock BBC Fanfics

1

What Meets the Eye

Complete

by worldaccordingtofangirls · Sherlock Holmes/John Watson

Amnesia is just another case to solve. Piece together unfamiliar faces, reconstruct the old identity, the lost reality. A challenge that Sherlock could even enjoy. He can read people like books. The man with the silver hair is his boss. The tottering old woman, his landlady. The girl with the worrie

39k kudos 8,249 words Mature
2

Nature and Nurture

Complete

by earlgreytea68 · Sherlock Holmes/John Watson

The British Government accidentally clones Sherlock Holmes. Which brings a baby to 221B Baker Street.

26k kudos 203,273 words Mature
3

Acceptable Behaviour

Complete

by bbcatemysoul · Sherlock Holmes/John Watson

Sherlock isn't really sure why John wants to shag him, but he's certain that if he's careful to behave properly about it, John can be persuaded to keep doing it.In other news, John is a good boyfriend and Sherlock is an idiot.(German translation available.)

23k kudos 3,449 words Mature
4

you are a paradigm

Complete

by 1electricpirate · Sherlock Holmes/John Watson

Sometimes, only sometimes, when Sherlock is very far away and absolutely guaranteed not to return for at least three hours, John sits on the sofa and lets the tea make itself. In which John is (reluctantly) a wizard, Mycroft is (apparently) omniscient, and Sherlock is (surprisingly) oblivious.

17k kudos 10,013 words Mature
5

Left

Complete

by lifeonmars · Sherlock Holmes/John Watson

John Watson is left-handed.He’s tried not to let it affect his life, but as any Lefty knows, that’s almost impossible.

15k kudos 45,153 words Mature
6

Sui Generis

Complete

by Francesca_Wayland · Irene Adler/Sherlock Holmes

When Irene Adler contacts Mycroft Holmes with some shocking information and instructs him not to share it with Sherlock, he believes it to be a calculated power play against him. In some ways he's right, but the truth is more complicated, and personal. This is an AU sequel to 'Neither A Soldier Nor

1k kudos 265,031 words Mature
7

Bride Of The Water God

Ongoing

by twistedthicket1 (orphan_account) · Irene Adler/Sherlock Holmes

Sherlock Holmes hates watching over Humans. Hates his job, taking care of the little village of Recheinbach. It's all boring. Boring and dull. All he has to do to keep himself busy is let it rain. Banished for years to the outside of his village due to an 'incident', the Water-Spirit dreads the fact

950 kudos 41,009 words Mature
8

Neither A Soldier Nor A Gentleman

Complete

by Francesca_Wayland · Irene Adler/Sherlock Holmes

Missing series of scenes from A Scandal in Belgravia. How does Sherlock actually escape from the Karachi insurgents himself, and what happens when an adrenaline-filled Sherlock finds Irene waiting for him in his hotel room right after his audacious rescue? COMPLETE.

707 kudos 96,981 words Mature
9

Between the Waters

Ongoing

by kickasslibrarian · Molly Hooper/Sherlock Holmes

Set directly after Sherlock's 'fall' from the roof at Barts. Molly's work isn't finished; Sherlock still needs her help. But how will they keep everyone else from finding out the truth?Angst, suspense, possibly some naughtiness!I'll be posting the next few chapters very shortly!

218 kudos 31,115 words Mature
10

Shelter

Complete

by amyutz · Molly Hooper/Sherlock Holmes

Molly turned toward him, “So what do we do? Go straight to Mycroft? Tell him what you’ve seen?” Sherlock's tone sharpened, “No. Not yet. If his channels are watched, if they’re listening, we’d be dead before he could act. Until I understand who’s pulling strings, we vanish entirely.” He added, “This

203 kudos 32,656 words Mature

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About Mature Sherlock BBC Fanfiction

This list features the 10 highest-kudosed mature fanfics in the Sherlock BBC fandom. Every story listed has been recognized by AO3 readers with substantial kudos — the platform's main signal of reader engagement.

Mature-rated fics contain adult content as defined by AO3's rating system. All stories below are flagged mature by their authors. Reader discretion advised.

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