Okay, if no one will make the content for JynBine, I am going to do it myself. But this time I am going to add the Blueberry Boi™ because I want to.
Anyway, friendship headcanons for some kind of canon-divergent AU, here we go:
• If girls spent time with each other in their teenage years then it would be hilarious to watch how they blow stuff up and bring Ezra along. Like, they would make a ridiculous "prepare to get wrecked" trio that gets in trouble all the time. All of them would probably bond over living on the streets, committing crimes and in Ezra and Jyn's case, being an orphan.
• Ezra would teach Jyn how to meditate as soon as he sees her cyber crystal. Just to, y'know, help her feel closer to the Force, to her mom. At first, Jyn acts indifferent but then, with time, she actually starts to enjoy it and meditates at an opportunity, feeling grateful. This habit annoys Sabine at first but she accepts it with time and even participates in that activity... Too bad her temper is limited but she tries, she truly does.
• Jyn enjoys watching Sabine paint anything... Unless it depicts her. In that case, you can hear sounds of hysterical laughter (brought by tickling from Jyn as a revenge), art supplies falling from a shelf and Jyn saying "You painted ME? I WILL PAINT YOU!" That's when Jyn realizes that she has more in common with Ezra Bridger than she initially thought.
• Unfortunately for Ezra, Jyn also shares a sense of humor with Zeb and Chopper so for him it's hell multiplied by 3. Sabine finds it hilarious and amusing, especially in their younger years.
• Hera basically gains yet ANOTHER child (friendly reminder: both Sabine and Jyn were born in 21 BBY). She understands Jyn's pain about the loss of her mother (AND her father), they have a good talk about it and our Space Mom is caring, like always. At first, she wonders where Jyn got her quirks from until she learns that Saw raised her. And then Hera is like "Yup, makes sense now".
• Girls often fall asleep together on the same bunk bed. They can't help but carefully embrace each other. Sabine notices that Jyn sleeps with an angry face and lovingly makes fun of it, she likes to poke the spot between her eyebrows because it looks so scrunchy. Jyn envies Sabine sometimes because unlike her she has a peaceful smiley face most of the time. Which is the reason why she loves either poking or caressing her cheeks to see if she'll stop smiling.
• Jyn loves helping Sabine in her artistic expression and sometimes brings her stolen art supplies just because. Once she came back with her face covered in ash, hair clearly burned at the edges and boots submerged in motor oil. Turns out she somehow brought a huge package of glitter. When Sabine prepares to ask Jyn about her appearance, Jyn nonchalantly says "Nah, please don't ask". Then Sabine asks "Wait, why would I need a package of glitter?" To which Jyn replies "I'm sure you'll find a way to use it :D". Two or three days later an imperial base is covered by sparkly rebel signs and some stormtroopers are left confused (and terrified because somebody actually threw f-ing glitter bombs at them).
• In their younger years, Sabine often jokes about drawing on Jyn's face when she takes a nap. That's why Jyn doesn't take naps most of the time. However, Ezra still manages to find Jyn dozing somewhere on the Ghost and quickly tells Sabine where exactly she is. It's childish but hey, they are children.
• Jyn actually has a surprisingly good relationship with Ketsu. Which prompted the latter to say 'Oh, so now I have TWO little sisters'. The former was both embarrassed and relieved when she heard that.
• Of course, in this AU, Jyn basically joins the Rebellion way too soon but not without a doubt. She meets Cassian under other circumstances but it's still full of tension. Blueberry and Bean often tease Jyn about him. When they get older Jyn gets revenge on both by teasing THEM about their relationship instead. Sabine and Ezra immediately regret all the years of 'let's make Jyn's love life a living hell'.
