Head canon of two older Alpha brothers and a really sweet small and caring Omega little sister? (I really enjoy reading your stuff!)
Like all siblings do, when they’re young, they tease their little sister occasionally, but the teasings are so light compared to other families because the two brothers often can’t stand to see her upset
Once they both get a little older, it quickly become a competition between the two to see who can become her favourite, and who can make her happiest
Her laughter is often the loudest thing in the house
They’re fiercely protective of her, and on her first day of school, they both point-blank refuse to go to their own classes until they’ve gone with their mum to see off their little sister
The little sister loves playing doctor with them, so when they come in from playing rough and tumble and are covered in scrapes and bruises, she adores sitting them both down and ‘tending’ to them
They discover she’s actually a very fierce little fighter herself, and more often than not they have to mask grunts of pain when they’re play fighting with her
If ever the brothers catch wind of someone bullying their sister, they’ll descend on the child without hesitation
They’ve been in trouble for fighting a lot, purely because they get angry at anyone who so much as looks at their sister
As the brothers get older still, their childish anger calms down a little and they become more reserved and able to control themselves better, but that primal urge to protect their sister never fully leaves
She cries on their first day of middle and high school when they have to leave her behind and go to a different place every day
When she joins high school, the two brothers are in junior and senior year, and everyone knows the little freshman who has two enormous alpha brothers who will lay down their lives for her
The sibling teasing and rivalry returns as they grow older and they’re able to tell the difference between playful teasing and bullying, and it’s not uncommon to see one of the brothers chasing or being chased by the little omega in the halls