Aether is the one that makes their food the majority of the time and is less impulsive than Lumine, usually there to point out flaws in her plans/ideas because if she executed them they'd have horrible consequences that she was aware of but didn't actually process.
Lumine has to drag Aether off of every tall tree/building because the rat won't stop climbing everything he sees and she's sick of it. She's thrown rocks at him to make him come down. She's also the one that made their clothes and the one who properly learnt how to fight and taught Aether how to do so (which is why she's a faster fighter than Aether, while Aether is a strong defender)
I like to think their wings, even if not physically attached to their bodies, are still very much part of their bodies due to it being tied to their powers. So they can feel and move the wings just like any winged creature. They also feel the subtilties in atmospheric changes with them and can easily recognize wind currents and where they're going (results in wings being very sensitive to touch)
Bodies are Much warmer temperatures because they're star creatures and also need the heat for when they're flying through space. They're both also pretty light for the whole flying thing.
I like to think that if they get Extremely upset/desperate, they'll full on unleash the raw power of a star on someone (unknown god) as a last resort, though it takes up a Ton of energy and tires them out greatly.
The glowing spots on their clothes (chest, wrists, knees for aether. Those things) are glow spots they have on their bodies because of the whole star people thing. Those areas are probably much warmer than the other body parts too.
Based on voicelines from characters and just how the game works; i also believe that Aether prefers to use sign language around people but will verbally speak if comfortable enough or when fully alone with someone he fully trusts (like Lumine or Paimon)
Sorry for the big text i just have a lot of thoughts about these two twins and saw that you do too and am now throwing them at you. I have more but brain is starting to lag
woah Woah WOAH HELLO THERE??? This is the first time anyone has sent their headcanons to me oh my god??? I’m absolutely buzzing this is fantastic! Hi!!
Okay okay I’m gonna answer this in sections cause this is a lot of writing. Im actually so excited to reply to this wtf
Okay this one fits in absolutely perfectly to my headcanons. Aether makes most of their food due to Lumine not having the patience for it. She can cook she’s a good cook but with her cooking it would turn into an episode of Gordon Ramsay Hells Kitchen hella fast.
Honestly it’s better to not have Lumine around when making food at all. She will try to take over and get really pissed off if everything isn’t done exactly how she would do it.
This is Lumine after Aether takes a fish off the fire exactly five seconds before she tells him to take it off:
Aether is patient. Aether can make a salad without almost breaking the bowl.
And I also agree with the impulse one! I feel like Lumine usually comes up with a lot of the plans for anything they do. Exploring a world, fighting something, escaping something yada yada.
Aethers the one who gives her a lot of advice for it and ‘polishes the plan up’ so to say. As you said Lumine is very impulsive and in the heat of the moment will go with the first thing she thinks about rather than giving it serious thought. That’s why Aether is there. He tries to help calm her down and tell her the flaws of the plan and what would/could happen if she went through with it.
And THATS why traveler Lumine gets into so much shit CONSTANTLY. Her brother isn’t around to be her fucking BABYSITTER. She stuck helping fucking aranaras constantly I hate those stupid aranaras.
Climbing/Clothes/Fighting
THE RAT HELP oh my god you’ve made me giggle with that. I absolutely love this headcanon it’s fantastic I can picture her throwing rocks at him while Aether hangs onto the branch of a tree like a stray cat.
Personally in my eyes they are both a HUGE chaotic duo when they are together so they would both be constantly trying to climb shit and probably getting stuck.
They see tall building and immediately look at each other like 😏
The amount of places they have been banned from for climbing shit is astonishing. It could fill up a small planet in itself.
Oh my god you know I haven’t properly thought about their clothes and I like your idea. I feel like she would of purposely given them inverted themes so they could be matching in a subtle sense while still going with both of their personal styles.
She tried to teach Aether to sew but he kept pricking himself with the needle 💔
Ooooh okokok right this is genuinely just stuff I’ve made up in my silly mind but okay so
I’m my little headcanon lore thingy they were both taught to fight by little guardians/teachers in a world (worlds???) they went to. Originally both being taught the opposite - Aether fighting and Lumine defending until they both started teaching each other their moves and excelled in the opposite things. I can 100% see Lumine teaching Aether to fight though.
Okay I don’t have much to say here other than i completely agree with absolutely everything you just said. Adding in that I feel like their wings were gifted to them by one of the first planets they came across and helped! This was eons ago so the two have gotten extremely accustomed to flying and feeling through their wings, though I feel like the two can make their wings disappear and reappear. Kinda like when the traveler throws the sword behind their back and it just appears in their hand then they are fighting.
Also! Aethers wings being made from sunlight and Lumines wings being made from moonlight 🫶
Oh my god imagine they made a little language through their wings if one or both isn’t able to speak? Like one flutter means stop, two means attack etc etc stuff like that!
I deffo see this, though I feel like their bodies are way more adapted to the cold rather than the warm. It’s INCREDIBLY cold in space which is where the two spend the most of their time and where they technically live. Their bodies have adapted to the cold and can absorb heat from planets the go to and kind of store it?? Kind of like a little thermal radiator.
Oh oh I like this this is interesting. What do you headcanon that to be like? Like what kind of power do you think they have when they get so desperate?
THIS IS SUCH A CUTE HEADCANON I have no idea why but I absolutely love this wtf?? I can totally see him doing that.
Okok my version of this IS the twins have their own language. They can both learn to speak other languages pretty fast, but it takes a bit of time. So in the meantime they (the traveler) allow Paimon to talk for them and translate it and only talk when necessary and when they know what to say.
I ALSO feel like around each other the twins have this kind of telapathic connection (you know what they say about twin telepathy and such) and so sometimes don’t need to speak to each other to talk. They can communicate through knowing what the other is thinking and feeling and through touch and stuff like that.
The two have deffo gone through days of not speaking and just talking through thoughts and such, when out of nowhere one of them will break it by just saying the most out of context shit and making the other jump out of their skin.
No please do NOT apologise this made me so happy to answer! I love hearing any and all headcanons about the twins they are my BIGGEST hyperfixation at the moment. Feel free to send even more! That goes for absolutely anyone. Thank you so much for sending this to me :D