Hello? do you remember me? (SBI + reader)

When two siblings are separated at a young age because their parents get in a car accident and don't see each other again for 8 years, will they remember each other?
probably, but hey their lives have gotten so fucked up already who says they'll ever have a happily ever after

TW: self h@rm, e@t!ng disorders, body dy$phori@, @bu$e, seggsu@le @ssult