The One With Koo Koo’s Little Munchkin
pairing: jungkook x nobi (ft. uncle bangtan)
summary: nobi’s brother lets her babysit her niece but her and jungkook don’t really know how to take care of a baby
if she was warned of the disaster and the regret that would happen later, nobi would’ve never let that baby enter her home.
it all started when kazuki, her older brother, needed someone to look after his daughter since him and his wife were going overseas for a week-long medical conference. unfortunately, the grandparents were also out of the country since the youngest child, maiya, had a chess tournament in China and needed her guardians.
that only left him with his other sister, sakura, or most commonly known to the world as Nobi of BTS.
with the ring of cellphone and the familiar ringtone dedicated just for her oldest sibling, nobi placed the washing gloves down and retrieved the phone that was on the counter to squish it between her ear and shoulder.
“welcome to chili’s, how may I help you?”
a burst of laughter from the other side caused a smile on her face. “table for 4, please!”
she froze, “WHAT!? HANA IS PREGNANT!? AGAIN!?”
“WHAT!? NO! IT’S FOR THE DOG! WOONGIE THE DOGGIE!”
a relieved sigh passed through her, “dear asahi, please don’t scare me like that again.”
“i mean... my favor might?”
with that sentence, nobi should’ve declined and hung up without a second thought. but as the loving and dependable little sister she was, she pressed farther and asked what for.
“you see... hana and i need to go to germany for some conference and we can’t take nanako since we’ll be in workshops all day. ma and pa are with maiya in China for chess so it only leaves you.”
“wOW, i’M the lAST rESoRt?!” An outraged yell from her caught the attention of jin, jungkook, and jimin, who were lounging in the living room.
“please, kura,” he begged and she sighed. “you love nanako, don’t you? besides! jungkook’s there and i trust him, so you have someone for help!”
“i haven’t even seen the kid since she was born not even a year ago. and jungkook’s a man-child.”
“but you still like her. and him.”
“eh, if she’s 50% of you then maybe i don’t. and he’s a handful already so adding an actual baby will be a pain.”
the loud voice from her sister-in-law made her cringe and back her ear away. jungkook is familiar with the voices in her phone since he roomed with her and she called her brother and his wife often.
“please take care of nanako!” she yelled and hung up, not even giving nobi time to protest.
nobi cursed under her breath and finished putting the last plate on the rack before wiping her hands and walking over to join the rest. jungkook scooted to the side so she could sit next to him and she curled up on his side since he opened up his right arm.
“what’s up?” jin asked as he placed an UNO wild card on the table during the heated match the boys had.
“kazuki wants me to take care of his brat,” she complained. “didn’t even give me any say in it.”
“ah, it’s okay! jin-hyung knows how to take care of them!” jimin reassured, not looking up from his 5 cards.
“um, not really?” the oldest asked unsurely.
“she’s turning one in 5 months.”
“aren’t you happy kazuki finally settled down, though?” hobi’s question made her shrug.
“i mean, the parents have been bugging him since he turned 23 to find a girlfriend. the guy married his first ever girlfriend and had a kid with her!” she exclaimed. “to be honest, i really thought he was paying her to act as his lover but apparently not!”
“can you imagine being so desperate to buy a fake girlfriend?” yoongi mumbled making her laugh.
“use that one,” nobi nudged yoongi with her toe pointing to the card. “also, jin-hyung didn’t change any of our diapers.”
“but wouldn’t a baby be easier than raising 4 teenagers?” namjoon said and nobi looked up from jungkook’s chest.
“well, i guess it won’t be that bad if i have help.”
“speak for yourself,” yoongi mumbled to which she playfully jabbed his side.
“anyways. if their kid goes missing, it’s not my fault because i was forced in this situation.”
jungkook tightened his arm around her. “think of this as a trial-run, bub. since you never took care of your sister, you don’t really know if you’re good with kids or not. maybe you’re like the ultimate mother master.”
she giggled, “nah. suffering 9 months for a demon and being responsible for it for 18 more years? can’t even handle myself.”
true to her word, nobi really can’t look after herself, much less with a kid. the doorbell rang meaning they were outside and had the little demon to take care of waiting. she tripped over some of kook’s shoes on the floor and she stubbed her toe against the door frame in a hurry to answer the door.
when kazuki dropped off his baby girl, nobi begrudgingly took the carrier from hana’s hands and snarled when kazuki sent an victorious smile.
“it’s only for 7 days, kura.”
“you know what could happen in those 7 days?! anything can happen in that time period! i wrote an entire album in a week! what’s to say i won’t do something to the brat!” her whines made kazuki roll his eyes before thumping her on the forehead.
“you big dummy,” he mused. “it’ll be fine. besides, hana put in about 7 pages of instructions there for you just in case.” she followed his finger that was pointing to the bag on her arm.
“honestly, are you my brother?” she asked, irritated. “since when do you see me reading instructions?”
“when you’re handling a tiny human and you won’t have anyone there to help you. that’s when.”
the boys were huddled around the carrier in the middle of the parlor, absolutely smitten with chubby cheeks of the baby and the little puffs of air she let out. sleep was heavy on her and her tiny fist clenched the baby blue blanket that her mother knitted her.
nobi was sorting out the baby powder and the nappies at the kitchen while jungkook squeezed some of the milk on his arm to test the temperature. he had assembled a crib in their room earlier and she placed all of the clothes into an emptied drawer that used to house her socks.
“sakura! how could you hate this little angel?!” jin squealed.
“hyung! too loud!” jungkook chided and nobi laughed.
“she looks too much like maiya.” her answer didn’t reach the others ears since no one reacted. she leaned her hip against the island and crossed her arm, amused and watching the boys get hypnotized by nanako.
“can you believe a little munchkin, not even a year old, has all the members of bangtan wrapped around her tiny finger?” jungkook asked from behind her, resting his chin on her shoulder.
nobi leaned against his chest, “well, the guys love kids in general. even she has yoongi-hyung’s attention, the attention that is reserved only for his baby Holly.”
jimin saw nanako flutter her tiny eyes open and watched it widen at the sight of 6 unfamiliar faces. she must’ve been frightened at the foreign surrounding and the lack of her mother and father only added to the fear. soon, her wails filled the previously quiet dorm and the boys panicked.
“oi! eomma! appa! your baby is crying!” tae shouted and nobi rushed over from the nappies, kneeling quickly and hovering over the carrier.
“hello, darling,” she cooed. “have a nice nap?” nanako didn’t respond but her cries did quiet down a bit, blinking up at the familiar-looking person. nobi picked her up and placed her on her arms, fingers gently touching her cheeks.
jungkook came over with the ready bottle of milk and handed it to her so she could feed the baby. “here.”
the boys watched the 2 peer down at the suckling baby and they snapped up when someone’s camera shutter and camera flash went off. taehyung had his old camera, jin had his polaroid, while namjoon had his phone up, all with wide eyes as if they were just caught.
“oi! nanako is feeding!” jungkook scolded causing nobi and the others to laugh.
“wah, it’s like we’re looking into the future!” hobi whispered, shocked at the sight in front of him.
“joonie, look! our babies with their baby!”
nanako continued to feed, eventually finishing her entire bottle, and nobi passed her off to jungkook so he could burp her while she washes the bottle for the next feed.
the guys shared a look and they grinned, relieved that taking care of this baby wasn’t going to be as bad as they thought.
eyebags and wrinkles were making their home in the faces of nobi and jungkook, victims of her irregular sleeping schedule. it was only the third day and her second night with them was the roughest time they’ve went through in a while.
jungkook was slumped over at the dining table, sleeping and breakfast shoved to the side, and nobi was clutching her coffee cup and seemed to be sleeping with her eyes wide open.
jin and namjoon were observing them with concern since they too were woken up by the loud cries of the child and they know the maknaes haven’t had a good sleep since the first night.
“kura?” jin poked her at the shoulder but received no response. “sakura?”
she jolted, wildly looking around as if she didn’t know where she was. “huh?”
her sudden movement woke jungkook up and he also looked out of sorts, eyes suddenly going wide. “the baby!”
“the baby!” nobi echoed before shooting up to stand but a hand stopped her.
“sshh,” namjoon soothed. “taehyung and jimin washed her already and are changing her right now. don’t worry, hoseok’s there with them.”
similar fatigue-laced eyes settled on the oldest and the leader as they sat back down, confusion and alarm slowly disappearing. jungkook groaned and started to slump over to go back to sleep but shot up when he heard the giggles from the devil herself.
“appa! nanako is here!” tae said in a child-like voice, carrying nanako with jimin and hobi trailing behind him.. “nanako is clean!” nanako saw jungkook and nobi and immediately wiggled to go to her temporary parents.
“nanako wants to see eomma!” jimin followed but nobi immediately shook her head.
“no!” she expressed, back away from the baby.
“aw, why?” tae pouted but smiled again when jungkook outstretched his arms.
“come here, my little munchkin,” he grunted. nanako found solace in his arms and she laid her head on his chest, as if she was listening to his steady heartbeat with her eyes closed.
nobi observed the girl’s calm behavior, slightly leaning forward to get a better look. “if only she was this peaceful last night.”
“hm, this is what parenthood is like, kids.” yoongi’s comment made the rest shiver.
“when was the last time you both slept longer than 3 hours?” jin asked as the amount of times he heard walking in their room was concerning.
“the night before she got here,” jungkook answered.
“well, you’re lucky she’s only here for a week. next week, we have a meeting with Bang and we might start choreography classes then. it’s good that we won’t have a baby in tow.”
everyone nodded at namjoon and at the mention of the meeting, hobi and yoongi dispersed to leave to their studios while the 95-liners were leaving to go to the gym to prepare their bodies for the grueling dances. namjoon was accompanying jin to the grocery store so it left the maknaes and the baby at home with no one else.
thankfully, the child was starting to fall asleep and nobi noticed jungkook fighting to keep his eyes open.
“come on, let’s go to bed.” her suggestion sparked a little life in jungkook and he carefully carried nanako to their bedroom where they could all get comfortable.
within seconds, nanako fell asleep and with the rise and fall of jungkook’s chest combined with his heartbeat made her slip into dreamworld quickly. jungkook was already snoring by the time nobi laid next to him and she hummed in content, happy that she was able to finally sleep.
their days continued on like that.
being fortunate enough to be on break, jungkook and nobi were able to sleep whenever they wanted since they were usually kept up by the energy that nanako only released at nighttime.
but they weren’t the only ones suffering.
it was now clear that the lungs that sakura had was genetic as it also transferred over to her niece by the way she belted her cries, the boys jokingly singing along to it (cue bretman rock). at night, they have created ways to block out her cries like sleeping with airpods plugged in or on jimin and hoseok’s case, leaving for 3 nights to sleep in a hotel since their room was right next door.
however, tonight was especially bad.
nanako refused to drink her milk, instead crying and screaming the entire time she was awake. when she did sleep, she would eventually wake herself up and start the entire cycle again. nobi was getting worried because she only had 1 bottle of milk today and she didn’t want to be held or touched by anyone.
combined with the worry and the sleep deprivation, nobi was in tears, sobbing on the floor next to nanako’s crib, who was also crying, so together they had a crying session. everyone else was busy, even jungkook since he joined the others in the gym, so she was left to fend for herself and the baby wasn’t helping by refusing to take in any milk.
“nanako, please,” she begged. “one bottle, hm? just one bottle.”
nanako shook her head and cried louder making sakura wail more. maybe it wasn’t the ideal situation or the ideal move but nobi didn’t know what to do because she’s never taken cared of a baby before. initially, she called her brother to figure out how to solve the problem but neither of them were answering and the booklet had nothing on there on how to get her to drink.
honestly, of all things, that should be in there.
the two girls were so busy having their sobbing match that they completely missed the front door and jungkook’s greeting. the boy was in shock at the sight of nobi clutching the crib with nanako inside while they both cried their eyes out.
“bub,” he whispered before grabbing her to his arms.
“i don’t know why she won’t drink, kook. and i’m so tired,” she wailed and cried harder.
jungkook racked his brain on what to do until settling on a decision. “tell you what. go to bed and plug your airpods in so you could sleep while i take care of nanako.”
nobi started to protest because she knew he needed sleep too but he waved her off. the feeling of the plushness of her bed was so foreign to her now since she rarely had time to sleep on it and relish in the comfort. the loud lo-fi music drowned out the screams and wails of the baby, allowing her to finally slip into her own dreamland.
it was only about 2 hours that she woke up and she cursed, fearing that she has so suddenly created a new maternal sense in a span of 5 days.quickly sitting up, the panic in her chest soothed when she saw an empty bottle on the dresser and jungkook swaying with nanako cradled on his arms, sleeping. she gently pried the earbuds out of her ears and smiled softly at jungkook’s quiet singing, feeling relaxed herself.
“go to sleep, my little munchkin,” he whispered. “koo koo will be here when you wake up. i promise.”
nobi closed her eyes in gratitude and forced down a scream of gratitude to the lord and savior, god almighty, that nanako has eaten and finally fallen asleep. and jungkook was here.
jungkook noticed her rising figure and he sat down next to her, still cradling the baby.
“morning,” she grinned to which he returned. “how was she?”
“well, took a while to convince her to eat but she did and she just fell asleep.”
“you’ll be a great father someday, koo koo.” jungkook bashfully looked away to hide the smile that threatened to escape.
“nah, i just communicate with children better.”
“do you want a baby girl? or a baby boy?”
a moment of thinking caused silence until he answered, “doesn’t matter. as long as i have my family.”
if she didn’t grow up with jungkook and didn’t see through his puberty and awkward and ugly moments, nobi might’ve just busted out a ring and married him then and there.
kazuki and hana were amused at the smiling face of the usually shy jungkook and the anger and irritation that radiated off of the girl beside him. the father gently took hold of his daughter from jungkook’s arms and she giggled, seemingly happy to see her father again.
hana placed a hand on nobi’s arm and squeezed in gratitude. “thank you so much, kura.”
nobi had no energy left in her to lie a smile so she sighed. “you’re really welcome. but she’s a handful. she kinda reminds me of maiya.”
kazuki laughed at the mention of their youngest sister. “you stayed with grandmother for a year because you hated her crying.”
“she was really nice, hyung.” jungkook reassured the man. “loud, but sweet.”
“then she should be over any time, right?”
“during the day, yes.” but she made a cross with her arms. “but nighttime, is no no.”
“either way, thank you so much, sakura, jungkook-ssi.” hana gratefully said and the family finally moved to leave.
nanako, who had her head on her father’s shoulder, turned to peak at the two who were slowly getting farther away and raised a wobbly hand as if saying her good-byes.
“bye bye, my little munchkin!” jungkook yelled and she giggled, flapping her arms.
when they were out of sight, nobi sighed and felt the relief flowing through her veins.
“she’s an absolute adorable little baby. but if i have to spend another night with her, i will lose it.”
jungkook laughed and wrapped an arm around her shoulders to pull her closer.
“again, it’s to prepare for the future, right? because i really want a munchkin of my own.”
a/n: don’t be silly, wrap your willy
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