Chapter Text
Siblings, the people of your life that stay forever. No matter how much you want them to, no matter if you ask them to or not. They don't know how to get lost, it's like their unpaid job just to annoy the shit out of you. Though despite it all, you still can't help but love them!
Having siblings is fun when you're a child, especially when you're near the same age.
Wether you're twins, or have a slight age gap. Katsuki was no stranger to this, having had gained the relationship of sibling love at the ripe age of two years old. Being able to see his sibling come home after getting out of the hospital.
It took some time to adjust to the new person in the house, still wanting to be his parents only focus. Not wanting to share the affection with whoever that thing belonged to. Which is what he thought at first, but all that changed when he finally got the chance to hold her in his arms.
Sitting him on the couch so he didn't drop her, Mitsuki picked up her baby from her husband's arms. Placing the girl lightly in her son's arms.
"Remember to support her head, Katsuki." She sat next to him, ready to take her back incase he decided he didn't want her hold her anymore. Putting his hand behind her neck, Katsuki smiled down at her.
"Aww, stay like that! Masaru get the camera!" Mitsuki squealed quietly as to not startle the pair, shooing the man to make her go faster. Scurrying to find a phone he grabs hers off the kitchen counter, handing it to her. Standing up she takes a photo of the two, unable to help herself from snapping photo after photo. The last one being a photo of Katsuki looking up at the camera with a toothy grin.
Which brings us to today, now age fourteen and sixteen. The same photo now being in a 11x15 frame on the wall going up their stairs. Which the two we're currently communicating to each other through.
"Where's mom?" [Name] questioned, looking up at him on the steps scratching her head tiredly.
"The hag went to the store, why?" Katsuki answers with his arms crossed, raising an eyebrow.
"No reason, she usually invites me to the store with her though. I would've said no but the thought would still be nice." She shrugged, "Nevermind that though, want something to eat?"
"Not if you're cooking it." He scoffed with a cocky smirk, probably thinking he said the most badass comment in existence.
"You know... I was just gonna ask ma to buy us something to eat, but now i'm gonna use the last of the milk to eat a bowl of cereal." [Name] retorts, eyes narrowing as she points to the door with her thumb. Running to the kitchen as she sees him charge down the stairs to get to it first. Stopping as she heard him slide and fall behind her, covering her mouth in surprise. Also tearing up from trying to hold back a laugh.
Stepping back into the kitchen slowly to try and focus on getting the milk, the tear running down her cheek as he stood up quickly. Face red from anger and embarrassment.
"I'm gonna kick your a-" He got cut off by his mom kicking the door open with a few of the groceries in hand, closing the door behind her before slipping off her shoes.
"What are y'all... you know what? I don't care. Just go get the groceries out the trunk." Mitsuki shook her head, walking to the kitchen to sit down the groceries. [Name] wiping the tears from her eyes, fanning her face as she followed Katsuki out the door.
"You will never speak of that, or i'll kick your ass." He gritted though his teeth, grabbing some of the bags.
"Yeah okay." She scoffed sarcastically, stacking things on top of each other to make them easier to carry. Earning a punch from him on arm, jaw dropping in pain. Clutching onto the part he hit.
"This is why you fell down the stairs!" She yelled loud enough for only him to hear, making him glare back at her. Leaving her on the ground with the groceries fell on top of her.