It's so funny to me when Luffy is in a polycule with all of the strawhats on some level, platonic or otherwise, Vivi shows up and she is just brought in and acts like this is just how it is. Natural fit.
Law when he is brought in, he is more then a little overwhelmed
What do you mean when I date Luffy, I also have the option to date everyone else, not that he doesnt understand poly relationships, more like overwhelmed that they all casually flirt with him
That is just a fact, now. Sanji will pack him lunches, Usopp will make him trinkets for one thing or another. Zoro does walk by check-ins, not ever admitting that is why he randomly walks past Law's room, and looks in before walking away without a word.
Robin will leave books for him, or randomly pop-in to talk about her latest hyperfixation that she thinks he would like with a smug smile.
Franky keeps trying to give him blueprints on how to make the polar tang more 'hard-boiled' and cooler.
Law so used to keeping his secrets and everyone at a distance to keep them safe, is constantly confused at how they just know things, they dont seem to pry much but Luffy just knows, and so do they all
Nami often hanging around with Ikkaku, they hit it off, so she gets all the gossip aswell, like the little things of how Law likes and does this or that
Nami gets him plushies with a little notes of 'stole this <3'
Law slowly coming about to the idea, and trying to learn as much as he can about everyone, discreetly so he can exercise his love language in acts of service xd
It took longer for him to find a spot in the strawhats relationship web, but he gets there. Not even realizing that as far they were concerned, he was part of them as soon as they left punk-hazard xd
