Work Text:
"yo y/n are you ready?" you hear genya call for you from downstairs. beach towel? check. sunglasses and sunblock? check. hat? check. mentally checking off your list as you head down the stairs of your little town home, you see genya out of the corner of your eye smiling at you. sporting a purple hawaiian button up with a white tank top underneath and a donut floatie of a duck's face on his arm. "yup, just double checking my stuff" you've been friends with genya for years, he's probably your best friend if not for nezuko. "took you long enough." you notice white hair out of the corner of your eye and notice that genya's older brother is here. sanemi. he's also wearing a hawaiian button up but his is blue and he's wearing a black tank underneath.
you're not much younger than sanemi but it still makes you nervous to be around him. you're actually pretty short compared to him, only being 152cm tall. he does long shifts at his job all the time so you rarely see him whenever you're over at their place. genya has told you very little about him but from what you know, he's brash and abrasive and kinda just does his own thing. they share an apartment together while the rest of their six other siblings live at home. you don't really know how to talk to him other than a polite hello before slipping your sandals on. its not like he's done anything wrong, he just makes your heart skip a beat. funnily enough, you just have a big fat crush on him. but not those childish middle school crushes, like a 'i want to be with this person through the good and bad' type of thing. it doesn't help that he's so handsome and built.
"are the kids with you too?" you asked as you looked up at genya. he nodded his head. they have one younger sister and four other brothers in the family. "there's not a lot of space in there with the kids, are you cool sharing seats with them?" that's to be expected with a whole family in the car. so there you were, everyone squished in the car, sumi sitting up at the front ( she won shotgun ). each kid sitting in each other's lap, unluckily (or luckily) enough, you were sat on sanemi's lap as genya offered to drive. genya did this on purpose, you knew it. you glared at genya through the rearview mirror and he just winked at you. oh you motherfucker, i am going to drown you when we get to the beach" you said all the words through your eyes toward genya and he straight up smiled at you.
you hoped that you weren't heavy for sanemi, even offering to just have the kids sit in your lap but he said it would be easier to sit on him than stack kids on your tiny little body. you tried to clear your mind of all the bumps forcing you to rub against sanemi by looking out the window and staring out at the view of the body of water getting closer and closer. with every turn, sanemi's hands are on your waist to steady you, probably so you don't hit your head on the door or something. it has your mind spinning and heart pounding out of your chest.
when you finally get there, you're the first to hop out of the car. you help bring stuff to the beach area, and find a nice spot to set up. once everything is set up, you help apply sunscreen on the kids' bodies before they run toward the salty water. you take off the oversized shirt you were wearing to reveal the cute two piece bikini underneath. it was white and green with polka dots all over. starting to apply sunscreen on yourself while genya and sanemi do the same, you realize you can't reach that far to get your back. "hey gen, do you mind putting sunscreen on my back? i can't bend my arms that far back" you sheepishly smiled as you looked at the boy. he blushed but nodded. the salty breeze was already soothing your mind, getting you ready for the long day of fun. you look up and notice sanemi's gaze on you before he quickly looks away, you doing the same.
"y'know he likes you right? he's just really dense. now's your time to shine though" genya whispers as he finishes putting the sunscreen on, bending over to talk to you before getting up. you feel the tips of your ears burning as you get up as fast as you can before taking the floatie and genya toward the water, leaving the white-haired man behind. "genya! you can't just say that to me when he's right there!" you pull him into the water before laughing when he visibly chills in the water. "i-i'm just saying, you two are too dense for your own good. this is your chance, take it while you still have it."
“oh that is it. you’re going down y/n!” genya yells grabbing you and doing a german suplex on you, drowning you in the water. lost in messing with genya and playing with the kids, you don't notice sanemi still sitting underneath the umbrella. "nemi! get in, the water's great!" genya calls out, along with all the kids cheering.
he shakes his head, "im watching the stuff, you guys have fun." you hear him say as he lays down on the reclining seat they brought. you're a little disappointed, hoping you were gonna see him on display but oh well. "y/n nee-chan, wanna find seashells with me?" sumi sweetly asks, holding your hand. a little angel. you thought as you nodded. genya took the boys to go build a huge sandcastle while you and sumi searched for the prettiest shells on the beach. you find an especially pretty one, pink and shimmery almost and run up to sanemi, "hey sanemi look! isn't this one so pretty?" he has an arm over his eyes before moving to take a glimpse of the shell. "uh...yeah i guess"
"i kind of wanna make it into a necklace for sumi and teiko, they would look so cute with it" you smiled happily before gently placing the shell with all your belongings. after returning with a bucket filled with shells, everyone stopped for lunch. and then came the watermelon. teiko tried first but missed it completely, instead smashing genya's toe. it was too hilarious watching genya hold in a scream as he assured her that it was okay. you hear sanemi snickering behind you. once everyone had a turn, barely even cracking the melon, it was sanemi's turn. he inhaled and his muscles flexed as he broke the melon open, straight down the middle. that meowing sound on TikTok started playing in your head but you didn't say anything. "psst, you're drooling dude" genya whispers, you quickly wipe your face and blush.
after eating the melon, you all stopped for lunch and then it was beach volleyball. "genya, to you!" you set one to genya and he spiked it, hiroshi diving to hit it back up. "that's my boy! destroy his butt" sanemi yelled getting into position. that game lasted awhile, the two eldest brothers went non-stop until they reached peak exhaustion.
"me and the kids are gonna go get something to drink, want anything?" genya asked, pointing toward the stores with food and drinks around. "uh, yeah mango juice if they have any, if not water's cool" you said, checking the time on your phone. it was still the middle of the day and the sun was shining down even harder than it did in the morning. genya puts a thumbs up and sanemi goes with them, saying he can help carry drinks, leaving you under the umbrella. by yourself. oh well i guess i can read my book while i'm waiting. you think, pulling out a book from your bag. you start reading and don't even notice the many guys staring at you.
"hey there gorgeous. all alone out here?" one guy asks, you click your tongue and notice there's three guys standing right in front of you. ogling you so shamelessly. "no, leave me alone." you say curtly before looking back at your book. "feisty, i like a girl who can bite. how 'bout you ditch that book and come hang with us? we can show you a good time"
"thanks, but no thanks" passive aggressive was starting to show. "c'mon, don't be like that, we're fun guys. better than reading a dumb book" you were about to go off on them when you hear knuckles cracking from behind you. "oi who the fuck are you?" you hear a low laugh and turn around to see sanemi looking at the guys with the most menacing face they could make. sanemi had his arms out on display, all the scars and the lean muscle to flaunt at the men.
"she said hit the road bub" sanemi said, pointing the other direction with his thumb. sanemi pulls down his sunglasses just a bit and glares at the guys. the guys shrink back in fear when they take a good look at sanemi. "what, can't take a hint? do i need to beat it into your thick skulls?" as soon as the guys took a good look at sanemi, the men quickly shake their heads before dashing away, leaving you snickering.
"hey, you good? they didn't do anything to you right?" genya, who was right behind his brother, hands you the drink and you thank him.
"nah, just trying to flirt with me. thanks though, i don't think they understand the word 'no' from me too well" you turn to look at sanemi who is drinking his water. "you too sanemi. thank you." it was only polite that you say thanks to both the shinazugawa brothers. the other children come back cheering with their favorite drinks. by that time, the sun was starting to go down and the kids were getting all worn out. you decide to take a stroll one last time before the day ends. "i'll be back before you guys start cleaning up, just wanna take a quick lap" you say, dusting off the sand on your legs before beginning to walk off.
genya looks over at his brother who is staring at your back as you walk away. its so obvious but they're both clueless, genya thinks. genya shoves sanemi in your direction and says, "hey walk with her. i don't want any creeps bothering her" which isn't a lie but he really just wanted you two to confess. sanemi glares at genya before rolled his eyes and walking toward you. he finally catches up to you, "yo" is all he says, startling you from your thoughts.
"o-oh hey. thought you were with the kids?"
"a walk ain't bad" is all he says. there's a slightly uncomfortable silence that falls between you two before sanemi speaks up again.
"so how long you been with genya?" is all he can ask. you stop in your tracks and whip your head toward him. he thinks your eyes are gonna pop out of your head, the way you're looking at him.
"me...with gen?" you point to yourself, trying to process the words in your mind before you break out in laughter. "me and him are not a thing. that's weird, he's my best friend" you explain to sanemi who almost looks happy in your opinion to hear that? but it could be your imagination.
"you're not fuc-" you slap your hand over sanemi's mouth, holding your own shut. "don't even finish that sentence. i would never. he's like my little brother" hope sparks in sanemi's eyes.
"so...you're single right?" sanemi wraps his hand around your wrist, pulling your hand away from his face. there's a tension between you two as the gap gets smaller. you nod your head slowly, looking at him with glossy eyes. "good, that means i can do this" and thats when you feel the soft touch of something on your lips. sanemi had bent down to your level and was kissing you. circuits were going haywire in your brain as you tried to process what was going on. you leaned into the kiss, relaxing a bit. he was still holding your left wrist, leaving your right one open to grabbing his shirt for support. you knees were growing weak and sanemi catches you by your waist, pulling you impossibly closer to him. his lips were soft and tasted like green tea and ohagi. he caresses your lip with his tongue, asking for permission to go further. you oblige.
his tongue enters your mouth as the kiss deepens, sanemi grabbing the back of your head, pulling you into an even deeper kiss.
when sanemi finally lets go, you're completely out of breath. cheeks dusted pink, a soft glow to your skin, puffy lips and a string of saliva still connecting the both of you. "that was...you..." you struggle to form a coherent sentence which has sanemi chuckling. "honestly thought you were with genya this whole time" sanemi says, brushing away the stray hairs on your face. you look up at him incredulously before he continues, "i mean you guys are together all the time and always whisperin' and gigglin' and shit. even today, he put sunscreen on you and was leaning over you like that. who wouldn't think you two are together"
you giggle before wrapping your arms around sanemi's neck, his hands resting on your hips. "well how about this? how about we're together now because i have had feelings for you for awhile" you say, sanemi smiling and picking you up by your hips.
"sounds like a plan, sweetheart. now let's go home, i'm beat." he proceeds to throw you over his shoulder as you thrash around laughing. genya hears you in the distance laughing and knows that his plan worked. it only took paying some guys and forcing sanemi to show off for it to happen. the guys come back around to genya and he hands them 20 bucks. all in a day's work. genya thinks as the men leave.