ONF MEMBERS AS YOUR SIBLING (Hyojin & MK version)
Either you are related to any one of them prior both families combined through marriage. Or maybe you are the little one who is born later.
Totally doable if you are elder than them, or birthday is actually sandwiched between them (same age as Minkyun but slightly earlier birthday) or even the youngest.
My suggestion would go for the youngest. Either born later or being the younger sibling of any one of the boys.
(Being eldest of them both are pretty fun too but it will totally becomes a love hate relationship lol. So I thought being babied by both of them are not bad after all)
Some common headcanons for all scenario below:
One of the most vocalist family in all sibling au. Also,Hyojin vocal appreciation squad.
Seungjoon drops by alot as if he is adopted by your family and sometimes joins your family stuffs lol
Either secondhand embarrassment because of Minkyun being funny or being crackhead with Minkyun and later gets nagged by parents lol
But also I should warn you that this is going to be somewhat chaotic duo in the family. High decibel screaming of annoyance and high decibel nagging towards each other are inevitable so rip your ears.
So let's dive in for more
Scenario 1 - you are related to Hyojin, and Minkyun being the new join
Minkyun has no trouble open up, gets comfortable and being a part of the family
Hyojin also tries to welcome his new brother. Even includes Minkyun when he hangs out with Seungjoon
You are very used to Seungjoon in your life, he is just like another brother of yours. Minkyun at first thought Seungjoon is a close relative lol
Either you are also a nagger yourself (if you are elder sibling of them both) or
You are also victim of Hyojin's nagging
But, you also know your blood brother well so you will tell Minkyun to be careful. But he still imploded Hyojin several times. Lucky for him, Hyojin does not hold grudge.
You two face palming at Minkyun's weird antics lol
One example taken from a video where Minkyun is playing at crab legs and Hyojin just look at him like aish this kid and his antics again. And yes you are the one filming it, and you sees Hyojin staring thats why you are chuckling. Minkyun thought it was because you think he is funny. But you sees a bigger picture.
Sometimes you would side on Minkyun when Hyojin being mischievous (and it might lead to weird how is your fave person battle between them if you are the youngest)
Probably Hyojin goes , hey I am your brother
Minkyun goes, but I am his/her brother too!
Minkyun going out alone to feed stray animals. At first you and Hyojin were like well, Minkyun has his own life and friends. But then you two noticed Minkyun at an alley when you two are heading home from groceries.
There is a kitten that is very much attached to Minkyun. And he is worried that his new family won't let him keep it. (Maybe Minkyun's side parent did mention that your family never have history of having a pet, thats why Minkyun can only feed it secretly)
You and Hyojin decided to persuade your parent. Thankfully both parents agreed.
Minkyun being a massive helper taking stuff from higher places. It could be he sees you trying take stuffs by standing on a ladder, he would rush over to help holding the ladder (even though its very stable). Maybe low-key nagging at you why you did not ask him for help.
Minkyun instant faves Hyojin and admires his voice the moment you 3 hang out at karaoke
RIP YOUR EARS BECAUSE THEY WILL BE SINGING TEARS AND HITTING ALL THE HIGH NOTES
Scenario 2 - you are related to Minkyun and Hyojin being the new join
I totally can see your blood brother Minkyun takes advantage of his height and bullies you. Holding up your stuff high and you are jumping around him. Cues in Hyojin just pass by and kicks Minkyun at his shin without a word.
If you are the sensible one, you would bond with Hyojin quicker, again due to Minkyun's weird antics lol
Hyojin inviting Seungjoon coming over to stay overnight. Your family very much welcome Seungjoon.
Occasionally Seungjoon voice out to you about how he felt relieved that Hyojin is being comfortable with the new family.
Hyojin being a happy kid because the new household can have pets.
It will be funny if your family pet open up to Hyojin and then ignores Minkyun (inspiration drawn from Minkyun's VLive)
Example if you have a dog/puppy at home, when you three comes back, it will pounce at Hyojin, let's you ruffle its head but then when Minkyun calls its name, the dog just turns and ignore him lol
You and Minkyun would bring Hyojin to pets cafe or pet shelter.
Maybe sometimes finding Hyojin sleeping on the couch or sitting on the couch at living room because he had trouble sleeping.
Also finding Hyojin sneaking instant food from the fridge. Or waiting his instant noodle to be done at the kitchen.
Either he bribes you with food or you join him for late night supper
Its a surprise to you that Hyojin actually can be mischievous. Especially when he is with Seungjoon.
This is one headcanon I forgot to include in previous but I think it is even better to include in here. This is due to I feel that Minkyun's family are more pure in personality.
Hyojin hiding his tattoos in the beginning because he did not want your parent to think he is a bad kid or being bad influence. But later when found out, they all accept it just fine. Maybe you and Minkyun ask him the history and reason for both of his tattoos.
Bonus if you get a tattoo later on as well
Scenario 3 - you are the child born later
People are going to be jealous of you because your brothers are damn good looking
They get even jealous if you, Hyojin, Minkyun and Seungjoon go out in a group
You feel like you have 3 elder brothers lol
Both Hyojin and Minkyun very much anticipates your arrival to the family.
Minkyun might try hard to make the baby you smile. While Hyojin mostly in charge of feeding you.
Piggy back and shoulder ride by Minkyun
Alot of clapping of praising and encouragement towards baby and toddler you.
Hyojin and Minkyun both are supportive but in a different way. Minkyun is the total lets go for it time but Hyojin would be if its planned nicely and you are sure of it then ok you can do type
Hyojin as a helper of your parents video recording the growth of baby you.
You are so used to hearing both Hyojin and Minkyun singing at home
When you grown up more, maybe you have a crush with Seungjoon? Probably Minkyun will try to help you out but Hyojin might try to make you fail because you are even more precious. Also the thought of his best friend being in laws is just weird lol
A/N : sorry for the long delay. And sorry if this one is messier than usual cos my brain is not functioning lol. See you on the next hc!