sherlockbbc_fic: (Default)
sherlockbbc_fic ([personal profile] sherlockbbc_fic) wrote2015-06-10 03:45 pm

Prompting Part XXXVII

This is the new prompting post for the Sherlock Prompting Meme. Prompts from LJ can still be filled there with links here or filled here in the new overflow post.

GUIDELINES

  • Anon posting is not required, but most definitely allowed. If you think you recognise an anon, keep it to yourself and don’t out them. IP tracking is off, and will remain that way.

  • Multiple fills are encouraged, and all kinds of fills are accepted! Fic, art, vids, cosplay, interpretive dance — whatever. Go wild! :D

  • Please do not re-post prompts unless the last time they were prompted was on an older part. Simply put: ONE posting of each prompt per part.

  • RPF (real person fic, i.e. fic involving the actors themselves) is not supported at this meme.

  • Concrit is welcome but kinkshaming, hijacking, and flaming are not tolerated.


THE FILLED PROMPTS POST
When you fill a prompt, please use the appropriate Filled Prompts Post to archive your fill (there are instructions on the actual post).

If the part you wanted isn't up yet, just wait and one of the archivists will get to it, but please, once it is up, make sure you post your fills there according to the guidelines. DO NOT skip out on doing this because it seems like too much effort. If you want your fill to make it to the Delicious archive, that’s the way to do it.

Do not be afraid to ask questions about how it works if you are confused! The mods will be happy to explain.

WARNINGS/OFFENSIVE WORDING IN PROMPTS
Please consider warning for prompts that may trigger people (and also for fills, because some people read in flat view) and phrasing prompts in a manner that strives to be respectful.

Things which you might want to consider warning for include: Rape/Non-Con, Death, Suicidal Thoughts, Self-Harm, Underage Relationships, among others.

That being said, this is a kink meme. As such, there will be prompts that could offend you in a number of different ways. Not every prompt will have a trigger warning, and not every prompt will rub you the right way. If you have an issue with a specific prompt, feel free to bring it up in a discussion that takes place off the meme. However, flaming will not be tolerated regardless of origin.

You are highly encouraged to scroll past any prompt that you dislike.

Remember: be civil, be friendly, but don’t be shy!

THINGS THAT MAKE BROWSING THE MEME EASIER FOR EVERYONE
Please nest your fills. Doing so will make it easier for archivists to save your fills to the Delicious archive. Using subject lines will also help people reading the meme in flatview keep track of what’s happening. Finally, titling your fills (even if it’s something silly) will be helpful to those tracking a lot of prompts or scrolling through the meme.

PROMPT FREEZES
Depending on the rate of activity, there may or may not be a prompt freeze when a part reaches 2000 and 4500 comments. However, there will be one when it reaches 7000. After the 7000 comments freeze, a new part will be posted, and all prompting should happen on the new part.

CONTACTING MODS
Your mods for this meme are [livejournal.com profile] ellie_hell, [livejournal.com profile] charname, [livejournal.com profile] anonspock and [livejournal.com profile] anonbach. If you have any questions, concerns, comments about anything at all on the meme feel free to contact us via the Page-A-Mod post.

MEME LINKS
Pinboard Archive - Delicious Archive - Guide to the Archive
Filled Prompts Posts: Parts 1-23 - Parts 24-36 - Parts 37+ - Spoiler Free
The Glorious FAQ - Page-A-Mod

Flat View of This Page - Newest Page in Flatview - Newest Page of the Meme

Links to previous prompting parts - Overflow Post

OTHER LINKS AND AFFILIATES
[community profile] sherlock_rants: A place to rant about or discuss anything with few to no restrictions.
sherlock_rpf: This is a kinkmeme for RPF about the show.
[livejournal.com profile] sherlockcrit: A multi-fandom betaing/concrit community, with a focus on BBC Sherlock.
sherlockbbc: A community dedicated to the BBC adaptation of Sherlock Holmes.
Useful resources for Sherlock and LiveJournal.
Sherlock screencaps.

John/Mary, Sherlock- Delayed Reaction, angst, h/c, divorce

(Anonymous) 2016-02-06 12:35 am (UTC)(link)
John hasn't forgiven Mary for shooting Sherlock. He just wants to make sure she doesn't disappear with his child or goes back to a life that causes her to miscarriage. As soon as she has the baby, John takes his child and leaves her.

Re: John/Mary, Sherlock- Delayed Reaction, angst, h/c, divorce

(Anonymous) 2016-02-06 09:09 am (UTC)(link)
Yes, yes and yes. +1

John has to choose between Mary and Sherlock. Character's Death.

(Anonymous) 2016-02-06 09:22 am (UTC)(link)
Slightly inspired by one of the previous prompts, but I'd rather see John as the one who has to make the choice. He has to decide between saving Mary's life (the baby is optional or maybe already born and is not involved into the whole situation. But it's entirely up to you) or Sherlock's.

Please, no woobie, weak John he isn't, no matter whom he chooses, but neither he's a Dark!John. Just John who takes the responsibility.

Prompt: Incubus John

(Anonymous) 2016-02-18 01:23 am (UTC)(link)
John belongs to a species of rare, nearly extinct incubi, that inseminate their surrogate (mate?), grow the fetus by feeding it through repeated ejaculations into their surrogate, and birth their child by continuously stimulating orgasms from the surrogate, all during a single marathon five-day mating session. Needless to say, surrogates do not survive the constant stimulation, but are usually too sexually sated to care by the end.
Sherlock and John are currently in a happy, sexual relationship, but they're not getting any younger, and not propagating his species is taking a physical toll on John. He knows he will not have long to live, but refuses to reveal his true self and risk Sherlock's life in the bargain. Sherlock, of course, finds out the truth and insists that they can prepare for all eventualities and this is a quick way for them to have a child for which they are both prepared.
Cue marathon sex, pregnant and horny Sherlock, insatiable John, erotic birth, and happily ever after.

Re: Prompt: Incubus John

(Anonymous) 2016-02-18 02:40 am (UTC)(link)
Oh the possibilities! Sherlock could bring it up when they're having sex. John could become ill at a case. Sherlock could entice him to reveal himself (maybe he did some research?). All the feeling Sherlock would go through during his pregnancy and compromised state. His body changing and outside his control. John fighting his instincts and being careful. And all the glorious sex! Second.

Re: Prompt: Incubus John

(Anonymous) - 2016-02-27 18:58 (UTC) - Expand

Re: Prompt: Incubus John

(Anonymous) - 2016-03-03 22:24 (UTC) - Expand

Re: FILL: Don't You Ever Tame Your Demons - 1/?

(Anonymous) - 2016-09-10 13:25 (UTC) - Expand

Gen or Any; John questioning Sherlock's Past (warning: child abuse)

(Anonymous) 2016-02-19 12:26 am (UTC)(link)
John is absolutely shocked when he learned about Sherlock's parents. Not just because Sherlock still actually has parents in his life, but because they seem like normal, loving parents.

Because John is Sherlock's doctor. He has seen his medical scans, his x-rays, and his scars. He's seen them multiple times in multiple emergency and non-emergency situations. And as a doctor, he recognizes marks left by prolonged and extreme physical abuse, marks that (again, as a doctor) he can date to having happened throughout Sherlock's childhood from a very young age up to adulthood. Marks that could not have been faked, self inflicted, or accidental.

They've never discussed this. And up to then, John just sort of assumed his immediate family had to be to blame. It wasn't his place to pry or ask questions. But now...

How did Sherlock get those marks? Was it his parents? Someone else? Did his parents know what was going on? Does Sherlock's past abuser still have access to him? That, John really wants to know.

Note: feel free to interpret the reason for Sherlock's marks in any way you care to, EXCEPT don't make John's assessment false: the marks aren't faked, self inflicted, or accidental and they were inflicted over a long period of time from a very young age. They are marks of actual abuse that did happen; who did it, type of abuse, and why it was so prolonged (particularly if the parents are completely innocent) is entirely up to you.

Re: Gen or Any; John questioning Sherlock's Past (warning: child abuse)

(Anonymous) 2016-02-19 08:00 am (UTC)(link)
+1

Shezza + Shotgunning

(Anonymous) 2016-02-19 05:49 pm (UTC)(link)
How about Sherlock, when he's Shezza, shotguns and does blowbacks and all kinds of other gay smoking things with random junkie men he meets (this is what he was trying to do with Henry Knight). John witnesses this somehow (perhaps with Shezza not aware John is present) and nearly explodes with lust.

Pre-relationship! Does John casually take up smoking? Does it lead to a relationship? Cannbis/tobacco/both.

Dark John/Sherlock, forced pants wetting and punishment (warning: non/con, abuse)

(Anonymous) 2016-02-20 12:25 am (UTC)(link)
Full Warnings: non-consensual drugging, shaming, and graphic physical abuse, possible rape

John secretly slips something in Sherlock's tea that makes him need to pee, then sets him up to piss himself. Then John shames Sherlock about the 'accident', and punishes him for making a mess. Sherlock in no way enjoys the humiliation or the punishment (which is excessively painful). It's up to you whether any part of the punishment is sexual in nature or if it includes rape.

Bonus: John continues to drug Sherlock. After a few weeks of this and increasingly painful punishments (including being beaten directly on his cock), and then even more punishments when John catches Sherlock 'messing with his health' by avoiding liquids, John pretends to get tired of the messes and makes Sherlock wear a massively thick nappy, and when his pants don't fit over it he gives him a super short skirt instead that does little to hide what he's wearing. John only changes it once a day, no matter how often Sherlock fills it. The punishments for not making it to an actual toilet continue.

Bonus 2: Include the Yard. After all, surely Sherlock's 'accidents' don't only happen at home? And What about Mrs. Hudson? How does she feel about all these new messes?

Bonus 3: Mycroft sees what's going on. Instead of putting a stop to it he puts up more cameras to enjoy his brother's humiliation and pain.

John/Sherlock, Alpha Sherlock gets dommed, warning:dub/con or non/con

(Anonymous) 2016-02-20 01:25 am (UTC)(link)
Sherlock is an alpha. He is an alpha among alphas, at the top of his class. Which is why it is so utterly humiliating when he finds himself completely dommed by the smaller, weaker, OMEGA John. Without quite knowing how it happened, Sherlock is on the floor, being mounted and pounded and all he can do is submit and let John do as he likes, completely at odds to Sherlock's very nature.

Bonus: Being an Omega, John doesn't have a knot and his dick is much smaller than Sherlock's. This is made up for both by the fact that Sherlock, as an alpha, isn't designed to be mounted at all so John's size feels monstrously large to him, and also because John, like all omegas, is capable of multiple orgasms. Sherlock isn't getting away from John anytime soon. Then, just when Sherlock thinks they're done, John decides his omega hole hasn't had enough attention and sits on Sherlock's face.

Bonus 2: Sherlock gets hard too, but no matter how hard he tries, he discovers that without John's permission he just can't come. Or alternatively he comes with John the first time, only to discover John isn't done and now Sherlock's all sensitive. Or a mixture of both.

Bonus 3: other's reactions to an alpha dommed by an omega (maybe they can smell it? Or John continues to dom him in public?)

Sherlock/John, teen!A.U., triggers for rape/sexual assault, victim-blaming

(Anonymous) 2016-02-20 05:32 am (UTC)(link)
Teen!John is sexually assaulted, but no one believes him when he tries to report the incident--no one except teen!Sherlock.

Lots of healing and young love. Hurt/comfort. Angst in spades.

Re: Sherlock/John, teen!A.U., triggers for rape/sexual assault, victim-blaming

(Anonymous) 2016-08-08 09:37 pm (UTC)(link)
I like this idea; I'm going to give it a try. It will be a couple of weeks though before I can post anything. Thank you for the lovely prompt.

Fill Whispers of the Heart chapter one

(Anonymous) - 2016-08-08 23:34 (UTC) - Expand

Re: Fill Whispers of the Heart chapter one

(Anonymous) - 2017-01-19 18:09 (UTC) - Expand

Lie back and think of England - dubious and non con, incest

(Anonymous) 2016-02-21 10:04 am (UTC)(link)
Mycroft has a honeypot mission for Sherlock.

Sherlock agrees knowing the mark loves to get very friendly and occasionally enjoys it when his partner isn't 100% consenting.

It's no big deal really, Sherlock says. He's technically agreeing to sleep with this man and he knows how to act and lash out and "change his mind" halfway through. But it's still a honeypot mission and Mycroft gets too emotionally invested in this.

Sherlock comes out of it alive and bitter, unable to quite settle back down into his ordinary life with John. Sherlock knows John wouldn't understand his sacrifice and besides he doesn't want to tell John. John would just get furious and Sherlock wouldn't be able to handle that. Instead, he slides into Mycroft's bed and tries to convince Mycroft to sleep with him in order to help Sherlock forget about that man's chubby, moist hands on his hips. He wants his last sexual experience to be with someone familiar before he goes back to John.

John and Mycroft both think Sherlock has lost it.

Alternate universe, teen!lock, unrequited Moriarty/John

(Anonymous) 2016-02-21 06:29 pm (UTC)(link)
Jim, Sherlock and John meet when they are very young and navigate their teenage/university years as close friends.

Jim is shy and soft-spoken. He's also painfully in love with John, who is the only person in his life who treats him with kindness. But Sherlock is interested in John, too, and Jim, who is far too introverted to admit his feelings, watches from afar as John and Sherlock grow closer and closer.

The day comes when Jim has had enough. John deserves better than Sherlock and Jim is going to make him see that. He confesses his love for his best friend only to be rejected, and this is the day that quiet, withdrawn Jim becomes James Moriarty.

Johnlock Dom/Sub Aftercare

(Anonymous) 2016-02-22 03:27 am (UTC)(link)
John is Sherlock's sub and he loves every minute of it, but he also always looks forward to how gentle and loving Sherlock is during aftercare, because this is a time where John lets himself be taken care of, he lets go of his need to be the one looking after someone, lets someone else take control. I'd just love to read something with the focus on aftercare. RTYI's welcome! :)

John/Sherlock Dom/sub Sherlock has been tense since he left

(Anonymous) 2016-02-22 10:47 am (UTC)(link)
Sherlock hasn't subbed consensually since before his fake suicide.

John has always thought Sherlock to be a Dom because well duh. And now that Sherlock is back, recovering from his high, it becomes obvious how unstable and unable Sherlock is to stay grounded.

John realises Sherlock needs to sub and he convinces Sherlock to let him. Sherlock agrees because he trusts John but the past few years of trauma and the need for him to hold himself together just makes it impossible for Sherlock to stop being so tense. John cannot get Sherlock to relax enough to make their sessions comfortable and they both work through the trauma and tension.

Re: John/Sherlock Dom/sub Sherlock has been tense since he left

(Anonymous) 2016-07-20 06:24 am (UTC)(link)
Seconded!

Edging

(Anonymous) 2016-02-22 09:55 pm (UTC)(link)
John edges Sherlock in public all day.

Sherlock spirit animals? (Or something like that)

(Anonymous) 2016-02-23 12:45 am (UTC)(link)
Everyone has an animal connected to there soul, usually what they are shows in there personality. A crow is smart a snake is cunning or snaps at people easily ect.

Now a small number of people have animals that are mythical or extinct, the catch? 99% of those people are clinically insane (they tend to be serial killers and the like)

I want John's to be a hell hound or dire wolf or something mythical/extinct/dangerous, but Johns not crazy.... Is he?

Bonus points!
1. John and Sebastian are friends in the army (maybe they bond over love of danger/violence)
2. Johniarty or john/sherlock (no jealousy or love triangle please)

Please no rape or omega verse!!

Johns from Nightvale

(Anonymous) 2016-02-23 12:47 am (UTC)(link)
Johns from Nghtvale, so sherlock may may be a breath of fresh air for john, considering how crazy both are.
darthhellokitty: Schrodinger's cat - a box with Hello Kitty's hair bow (Default)

Re: Johns from Nightvale

[personal profile] darthhellokitty 2016-11-15 05:46 am (UTC)(link)
Night Vale has such good, normal boys, and they do love scientists!

Dom john johniarty

(Anonymous) 2016-02-25 01:34 am (UTC)(link)
I love when John is the dangerous one, so anything with John being in control of Jim in some way (though no rape please)

Awkward first time S/J

(Anonymous) 2016-02-26 12:30 am (UTC)(link)
Don't know if anything like this has been prompted before, but I'll put it out there anyways.

John and Sherlock FINALLY get together and have sex for the first time, after all the time they've spent dancing around each other and flirting and making mistakes *cough, Mary, cough*. They think the sex is going to be perfect and great because they are perfect and great for each other, but it turns out that the sex is very lackluster and awkward. Nothing like what they were expecting. Afterwards, they have a very uncomfortable talk about the experience and find out they were both disappointed with it. John tells Sherlock that they should keep trying because sometimes it takes a little while for two partners to mesh just right.

So they do different things to get them to try to take the pressure off, like drinking some alcohol or couples massages to get them to relax, but things always end up going wrong (i.e they get too drunk and end up throwing up or are unable to have sex, or the person getting the massage ends up falling asleep). Eventually, after a couple of different tries, they talk about the idea of just going back to being friends, but neither of them wants that because they love each other and can't think of not being together.

In the end, they just let things happen naturally and it finally goes right. Sparks and fireworks and choirs singing in the background.

It is up to you whether Sherlock is a virgin or not. I will totally take RTYI's as well.

Omega Sherlock owning it Johnlock

(Anonymous) 2016-02-26 12:37 am (UTC)(link)
It seems like there are a lot of fics out there where Sherlock is an omega but he hates it or is constantly fighting his biology. I would like to see something where Sherlock is an omega and is okay with it, and everything that being an omega means. He enjoys being an omega and how he can make people think twice about the gender by generally being a badass. He loves being bonded to John because John treats him so well, and makes him happy. John understands Sherlock's view on his biology and supports Sherlock no matter what. Happy, happy, fluff, fluff with lots of sex!

rtyi okay too

student/teacher omegaverse Johnlock

(Anonymous) 2016-02-26 12:40 am (UTC)(link)
i haven't seen a lot of fics in the omegaverse that are also student/teacher.

john or sherlock can be teacher, it doesn't matter. no underage, please.

if there are rtyi I will take that, too.

Re: student/teacher omegaverse Johnlock

(Anonymous) 2016-02-27 11:31 pm (UTC)(link)
Me too. +1

Teenage omegaverse mpreg fic! S/J omega Sherlock

(Anonymous) 2016-02-26 12:49 am (UTC)(link)
Teen!John and Sherlock are long-time boyfriends, even though Sherlock hasn't presented yet. John has already presented as alpha and has spent the time since he presented taking care of Sherlock and generally keeping people from bullying him in school. They know Sherlock will present as an omega (maybe there is some prior dna tests that families can run on their kids in this AU?) and are just waiting, taking things slow, NOT HAVING SEX. Just being good kids. One day, while at home with John on his way over, Sherlock feels a little sick. John gets there and takes care of him, they don't know that it is actually Sherlock going into heat until its too late. They have sex for the first time, but they use condoms and they don't bond because they know they are too young. Everything is rainbows and sunshine.

A month or two later, Sherlock finds out he is pregnant. His family is very old fashioned and wants him to put the baby up for adoption because they think he is too young to take care of it, but neither he or John want to do that. They want to have their baby and become a family. Sherlock's family says that since Sherlock doesn't have an alpha (because he and John aren't bonded) they can decide the fate of Sherlock's baby.

Bonus points for John being a bamf and standing up to Sherlock's family

Extra bonus points for both boys having their own doubts but ultimately wanting to be together and make the other happy

Re: Teenage omegaverse mpreg fic! S/J omega Sherlock

(Anonymous) 2016-02-26 07:29 am (UTC)(link)
+1

Re: Teenage omegaverse mpreg fic! S/J omega Sherlock

(Anonymous) - 2016-03-01 00:04 (UTC) - Expand

(Anonymous) 2016-03-01 12:02 am (UTC)(link)
Could I please have a fic with younger omega!Sherlock and Alpha!John? Could it also have John being older but very noble and very protective and to lust madly after a sweet, innocent and virginal Sherlock. Sherlock doesn't have to be underage just young and frightened, and maybe because of past trauma he is very scared and in a vulnerable situation. Please could it also have John as an Alpha soldier who saves Sherlock from being claimed by Moran?

(Anonymous) 2016-03-03 01:19 am (UTC)(link)
There is nothing I like better than BAMF but noble and loving John. Perfect. I love this theme. Here we go with Night Song. :-)

Night Song

(Anonymous) - 2016-03-03 01:21 (UTC) - Expand

Re: Night Song

(Anonymous) - 2016-03-03 09:42 (UTC) - Expand

Re: Night Song

(Anonymous) - 2016-03-03 12:18 (UTC) - Expand

Re: Night Song

(Anonymous) - 2016-03-03 22:20 (UTC) - Expand

Re: Night Song

(Anonymous) - 2016-03-03 23:14 (UTC) - Expand

Night Song Fill 2

(Anonymous) - 2016-03-03 22:22 (UTC) - Expand

Re: Night Song Fill 2

(Anonymous) - 2016-03-03 22:28 (UTC) - Expand

Re: Night Song Fill 2

(Anonymous) - 2016-03-04 09:19 (UTC) - Expand

Re: Night Song

(Anonymous) - 2016-03-03 22:25 (UTC) - Expand

Fill Night Song 3

(Anonymous) - 2016-03-04 20:07 (UTC) - Expand

Re: Fill Night Song 3

(Anonymous) - 2016-03-05 00:05 (UTC) - Expand

Re: Fill Night Song 3

(Anonymous) - 2016-03-05 16:51 (UTC) - Expand

Fill Night Song 4

(Anonymous) - 2016-03-10 21:19 (UTC) - Expand

Re: Fill Night Song 4

(Anonymous) - 2016-03-10 22:40 (UTC) - Expand

Re: Fill Night Song 4

(Anonymous) - 2016-03-18 02:48 (UTC) - Expand

Fill Night Song 5

(Anonymous) - 2016-03-11 20:19 (UTC) - Expand

Re: Fill Night Song 5

(Anonymous) - 2016-03-11 21:42 (UTC) - Expand

Re: Fill Night Song 5

(Anonymous) - 2016-03-18 02:49 (UTC) - Expand

Fill Night Song 6

(Anonymous) - 2016-04-03 00:04 (UTC) - Expand

Re: Fill Night Song 6

(Anonymous) - 2016-04-03 18:28 (UTC) - Expand

Fill Night Song 7

(Anonymous) - 2016-04-04 22:48 (UTC) - Expand

Re: Fill Night Song 7

(Anonymous) - 2016-04-05 19:48 (UTC) - Expand

Fill:Night Song 8

(Anonymous) - 2016-08-02 22:13 (UTC) - Expand

Re: Fill:Night Song 8

[personal profile] mdk2013 - 2016-08-04 05:05 (UTC) - Expand

Re: Fill:Night Song 8

(Anonymous) - 2016-08-04 19:58 (UTC) - Expand

Fill Night Song 9

(Anonymous) - 2016-08-08 21:27 (UTC) - Expand

Fill Night Song 10

(Anonymous) - 2016-08-15 19:30 (UTC) - Expand

Fill Night Song 10b

(Anonymous) - 2016-09-09 22:12 (UTC) - Expand

Mycroft/Lestrade - Relationships

(Anonymous) 2016-03-01 11:00 am (UTC)(link)
Mycroft subtly destroying every date Greg goes on, because he has a not so little crush on him. This inevitably gets pointed out to Greg, who then confronts Mycroft. Mystrade ensues.

A thing

(Anonymous) 2016-03-04 10:56 am (UTC)(link)
I just really want to see a fic in which Sherlock is deducing stuff about someone before speaking to them, and in doing that he works out that they're transgender (without having actually transitioned yet or come out to anyone) and he uses their proper pronouns. Cue their surprised/grateful reaction.
I dunno, just a thing. Preferably no smut and so on, but the ficcer can take this in whatever direction they want.
polkadot_socks: (Default)

Re: A thing

[personal profile] polkadot_socks 2016-03-04 12:27 pm (UTC)(link)
Yes this please! X100
I read something from an Elementary fan that BBC Sherlock would never do this, but I'd like to see it, because I think he would.

Re: A thing

(Anonymous) - 2016-03-07 11:35 (UTC) - Expand

Re: A thing

(Anonymous) - 2016-03-11 07:14 (UTC) - Expand

Re: A thing

(Anonymous) - 2016-03-11 12:30 (UTC) - Expand

Rape fantasy and the comforting afterwards

(Anonymous) 2016-03-04 09:35 pm (UTC)(link)
John and Sherlock play out a rape fantasy and just as it ends, Sherlock breaks down sobbing and begging John to stop this. John holds A crying and shaking Sherlock and comforts him as Sherlock hides his face in johns chest.

And John finds it a little bit awkward... Sherlock has never had such a reaction before.

Alpha/Alpha knotting Sherlock gets way too curious about it

(Anonymous) 2016-03-04 09:46 pm (UTC)(link)
Sherlock comes across a alpha/alpha relationship during a case and it triggers something within Sherlock. It's not exactly unheard of, but seeing it actually in real life for Sherlock makes his imagination run wild. Sherlock develops this obsession of experiencing another alphas knot within him. He starts masturbating frequently, plays with his own knot and much to John's horror, Sherlock starts actively trying to flirt with any alpha he sees in hopes that one of them will bite and fuck Sherlock.

Of course, as a doctor, John knows all the horrible ways it could turn out and hurt his best friend and he's the one who's going to be there when Sherlock is hurt. So he begs Sherlock to stop this nonsense. Sherlock is stubborn until he thinks john could do it! With his medical knowledge, John could prepare and knot him!

And so it eventually happens and it's terrible. It hurts so much and Sherlock is far from aroused, his erection lost long before full penetration... But he's determined and the actual knotting sends Sherlock into tears. But after its all over... After a couple of weeks... Sherlock wants to try again. And by this time they've both admitted to being attracted to each other.