I just have such a profound need for best friend to lover AUs when both sides think there is no chance of anything ever happening.
Sharing beds together since they were little kids and never really growing out of that habit even though it now hurts to be that close to each other, knowing it will never be anything more than platonic cuddling.
Each of them being that one person the other goes to to feel better when they’ve had a shit day or date. Bonus if it’s 3am and they spend all night talking.
Neither of them realising how much they act like they are dating/married and getting super flustered or sad when someone asks how long they’ve been together because do you have to remind me of this painful unrequited torment I die a little more of with every passing second?
How much they make each other smile when one of them walks into a room.
Going as each other’s dates to everything because it’s “convenient”.
Wearing each other’s pyjamas when staying over somehow becoming more arousing than if the other person was naked.
Having inside jokes and finishing each other’s sentences as casual as anything.
Knowing random medical shit about each other. Bonus if one of them takes an allergic reaction to something and the other one just pulls out some random ass medicine like they carry it around all the time- spoiler: they do- just in case of this exact eventuality.
The heart break of seeing each other with other people but doing their best to see it through with a grin and with as much encouragement as they can muster.
Staring a little too long at each other.
The awkward moment when they reach the age they said they would marry each other if they were still single.
Getting fake married as kids and family members always reminding them about it , maybe going as far as to put on the video of the fake ceremony and giving them knowing looks.
Something happening- a kiss, sleeping together- and getting into an argument about it, scared this is it, this is the end, that they’ve fucked up and just wishing they could talk to each other about it, to their best friend.
Having the best black mail material on each other but ready to pounce on anyone else who so much as dares try black mail their BFF.
Having a song. Having a whole playlist.
Laughing the first time they have sex.
Already having seen each other at their very worst.
Getting to say cheesy things like, “I can’t believe I get to spend the rest of my life with my best friend” or “I know I’m marrying you but…do you think I could still be in charge of your send off party? I’ve been planning this night for ten years and I will not have someone else mess those plans up.”
Even after years of being together, still being in awe of the fact they get to have the one person they thought they’d never get. The person they helped ask other people out. The person they used to give the “you deserve someone who loves you for you” speech to. The person they used to look at and wonder why does it have to be you? The person they look at now and think it could never have been anyone else.