Playing with his hair when you kiss, or just to annoy him or when you lay in bed together.
Calling him “Holmes”
Sherlock wouldn’t introduce you to Mycroft for a while because he would be worried Mycroft would make you leave somehow. But when you did get formally introduced to Mycroft it would be a little strange… “Oh this is your brother? I met him the week I met you in a coffee shop. We had a nice little chat! What a coincidence.” You would all know it definitely was not a coincidence.
Sherlock would teach you to dance. He would be shy about it at first but once you’d stepped on his toes a few times and looked so shocked and apologetic afterwards he wouldn’t be able to stop laughing.
Telling Sherlock you won’t talk to him until he eats something substantial. “Oh, you’ll crack eventually.” You don’t. Sherlock ends up aggressively eating a sandwich in front of you while you burst out laughing - he’d had enough of asking your opinion on a case and you just giving him an eyebrow.
Sherlock takes you on cases with him because he likes you to see you (impress you).
You keep laughing at inappropriate times, earning the eyes of everyone at the scene. “Sorry, it’s just that that’s Sherlock’s um… face.”
Taking baths and showers together because you can both be absent minded in the shower and this helps you save water.
John wouldn’t know for a week or so that you two were actually dating. He would’ve thought that you didn’t swing that way so he would be very shocked when he walked in on you and Sherlock making out. “Is this um… for a case?”
You and Sherlock would dress and undress each other (mainly for motivation for Sherlock) as he would often not bother to get dressed and would stay in the same clothes for days. This way you did it for him (which he quite enjoyed).
Subconsciously imitating his clothing style. You don’t realise until there’s a photo of you two in the newspaper.
Laying on his lap when he’s reading through papers
Mrs Hudson would adore you. She would keep asking when you two were going to get married.
It would make Mycroft uncomfortable to see his brother so happy with someone in that way.
Meeting Sherlock’s parents. They have many funny stories about Sherlock to tell you.
Sherlock suddenly going to you at random times, holding you by the shoulders and half yelling at you because he’s “realised why I feel this way about you”.
Standing up for him with cutting comments whenever someone insults Sherlock. You’ve picked up on how to hurt people with words (you don’t use it very often though).
A lot of hand holding but not that much else PDA
Imitating him when he’s being stroppy. This causes him to imitate you back and you’re both strutting around the flat in each other’s clothes , shouting mockery at each other until Mrs Hudson bursts in laughing. “You two are so strange! You’re perfect for each other!”
When she leaves, Sherlock turns to you. “We are you know. I mean, statistically speaking.” “What?” You laugh. In answer you just kiss each other, him in your clothes and you in his.
“Does it make me self indulged to say you look really hot in my clothes, Sherlock?” “Perhaps. But I do have to agree.”
Σ(ﾟДﾟ；): Have they ever sprained or broken their leg before? How about their arm? What was the story behind it?
╰(*´︶`*)╯: Do they appreciate hugs? Would they prefer to give hugs or receive hugs? What kind of hugs do they like to receive and/or give?
ಠಿ_ಠ: Do they look up or down when they are trying to recollect something?
ヽ( ´O｀): What is their body language like when sleepy?
(Дﾟ≡ﾟДﾟ): When they are surprised by somebody do they physically jump? Scream?
(⸝⸝⸝ ̑ ̑⸝⸝⸝): Does their face get red after they drink?
(„ᵕᴗᵕ„): Does their face turn red when embarrassed? If so, how else do they react when embarrassed? (I.E. Shifting of weight upon foot, etc.)
( ๑‾̀◡‾́)σ»: Do they have a sensitive spot/s?
(〇o〇；): What is their body language like when they are stressed? Do they try and hide the fact that they are stressed? How do they recover from said stress?
ಠ-ಠ: Do they like it when people touch their hair?
(ﾉ≧ڡ≦): Do they like to show affection by physically teasing? (I.E: Shoulder punches, etc.)
♪⁽⁽٩( ᐖ )۶⁾⁾ ₍₍٩( ᐛ )۶₎₎♪: How are they like when they dance? Are they stiff? Fluid? A good dancer? Do they prefer to dance with a lot of others, with one other person, or alone?
ง ( ⌓̈ )ง: Are they physically strong when it comes to fights?
(´∀｀): Do they laugh when they get nervous?
ಥoಥ: How are they like when they cry? Do they just stream tears nonstop? Does their nose get clogged to the point that it’s hard to breathe? Is it easy for them to speak when they are sobbing? Do they hiccup when they cry?
ಸヮಸ: Do they lean back or forward when they laugh hard? Do they snort? Slap their knee? Do that seal-esque clap? Do they often laugh to the point that you can’t hear their laugh anymore?
「(°ヘ°): How does one calm them down when they are freaking out? Do they prefer physical comfort, or would they rather be left alone?
⊙.☉: Does their voice get an octave higher when they lie? Does it crack?
( ˘͈ ᵕ ˘͈♡): Does having somebody stroke their head make them feel relaxed?
(ꈍᴗꈍ)ε｀*): Do they prefer kisses on the cheek? Forehead? What about neck kisses?
(-.-): How should one wake them up? Do they get out of bed easily?
(ó﹏ò｡): Are there any foods that make their stomach upset?
Jim would make it very clear to everyone (especially Sherlock) that you were his.
Anyone even remotely threatening to your safety wouldn’t get within ten metres of you.
Going out for extravagant, elegant dinners and dances when Jim had managed to clear a restaurant/location for the two of you. These dates would all be last minute so Jim would supply you with suitable attire.
“If someone pulls up in a car next to you, you must not get in, alright?” This backfires on him later when he picks you up and you ignore him just to annoy him. “(Y/n), get in the fucking car.”
Even though he would be possessive, it would be sort of behind the scenes possession. As in he would tell you you could do whatever you wanted but would keep an eye on you. If he wanted you in a specific place or to spend time with him he would someone manipulate you into doing so.
Calling him Queen or King.
He would call you “Kitten” or “Jewel”
Sherlock would finally meet you when Jim sent you to 221b on a “diplomatic mission”. Really, it would be an exercise of Jim’s power, showing Sherlock that even in his own flat, no harm would come to you.
Sherlock would find you quite fascinating because you hadn’t bored Jim, which seemed unusual.
You would just smile slyly as Sherlock tried to deduce you, (this would annoy Sherlock even more).
Jim would kiss you with a lot of force. It would be exciting yet terrifying.
Whenever you made a sarcastic remark to Jim he would imitate you, “Oh I’m outsmarting my boyfriend ohh” You’d laugh, sticking your tongue out at him. Jim would smirk, asking you if you wanted to put that tongue to better use. (Depending on his mood he may just pull out a lollipop.)
He would buy you a crown.
Jim would enjoy making you tea for some reason. Whenever you had to buy him a gift you’d get him fancy tea cups.
When he was in a rage and smashing things he would usually hesitate to smash the teacups you gave him. This hesitation would cause him to calm down slightly.