Another reader insert fic featuring Osomastu x reader.
Warning: Smut ahead.
Osomatsu loved touching you. It didn’t matter when or where, he loved feeling your warmth under his fingertips. Even if it was inappropriate, he still found himself lost in the feeling of you. Maybe it was because he was touch starved or wanted more attention, but it didn’t really matter why. If you didn’t stop him early on, he would work himself up to becoming unbearably horny. You could usually tell when he was getting close to that point, but sometimes it really did sneak up on the both of you.
You had decided a day in was suited for the both of you, but you needed to pick things up from the store for dinner. Of course, Osomatsu didn’t want to be left alone, so you took him with. Unfortunately, today had been a touchy day, and Osomatsu was nearing his limits. You asked him multiple times if he wanted to wait for you at home, but he insisted on coming with. You let him hold your basket to keep him occupied, but it didn’t seem to work.
You were halfway through your shopping trip when you felt him grab your wrist. You looked back to him to ask him if he needed something, but before you said anything, he laced his fingers in yours to hold your hand. He gave you a quick cheeky grin but did nothing more at that moment, so you continued shopping. His palms were sweaty from being inside his hoodie pocket and every few steps he would brush his thumb over your hand. It was endearing, but incredibly suspicious. You could tell he was planning something in his mind.
You let go of his hand to grab something off the shelf you were looking at when he smacked your ass. Hard. The surprise and force caused you to shriek out in alarm. You shot him a glare while softly rubbing your backside.
“Osomatsu, what is wrong with you? This is a public space may I remind you!” You voice was just over a whisper scolding him.
“Sorry, I just really couldn’t help myself! You’re distracting me,” he replied, bringing his hand back to rub smooth circles on your ass while kissing your temple.
He gently pinched your ass cheek while continuing to litter you with kisses. His body was firmly pressed up against your side.
“Oso, not here! Can’t you wait 20 minutes until we are done and get home?” You pushed him away from you tidying yourself up while trying to snap some sense into him.
“Hmm, make it 15 and I think I can do it,” He playfully pondered scratching under his nose.
You rolled your eyes, but could see he was holding himself back now. You quickly tried to finish up the shopping, but he kept nagging you.
“Man, I can’t wait to get you home and fill you with my big fat cock. You’d like that wouldn’t you?” He whispered into your ear, hand set gently on your hip.
Your face burned at his words, but you did your best to ignore them and finish the task at hand. You raced through the store grabbing what you needed and quickly going to the checkout. The store clerk was slow. You watched as he carefully scanned each item and bagged them safely. You wanted to scream at how he took his time when you knew Osomatsu was already impatient. He came from behind you, slowly rubbing his hands down the sides of your outer thighs. His head sat itself in the corner of your neck with the perfect angle to whisper more obscenities in your ear.
“We could do it in the bathroom you know? I could fuck you bent over the sink.”
You swatted at him, but he stayed put.
“Just imagining your perfect ass jut out for me is making me hard, babe. You’re so cruel, not letting me fuck you right now.”
“Osomatsu, be quiet!” You urged him, but he snickered at your reply.
The clerk snapped you back to attention by stating your total. You quickly handed over the amount and grabbed some of the groceries, making sure Osomatsu grabbed the rest to fill his hands. You rushed out of the store, Osomatsu following close behind.
“You’re in such a hurry. You really can’t wait for my cock can you?” He questioned quietly to you.
At least he had the decency to ask quietly.
“More like I’m in a hurry to get you home so no one can hear you!” You snapped back.
“Woah tiger, getting a little snippy with me won’t help anything. In fact, it kinda turns me on even more,” He licked his lips at you.
You wanted to scream. Osomatsu really was the worst when he was like this. The only thing you could do was rush home and hope he shut up once the door was closed. You didn’t dare look back at him the entire walk home. It would only stir him on more. He kept giggling to himself and you could feel his eyes roaming you. You felt like you were being stalked by a wild animal. The feeling made you tingle. Soon enough, you were home. You practically ran to the door to open it and get inside. Osomatsu followed, shutting the door roughly with his foot. He dropped the groceries where he stood and attacked you before you could make it to the kitchen. He wrapped you in his arms, head in the crook of your neck kissing and licking the exposed area.
“Osomatsu, the groceries,” You pleaded.
“Can wait,” he mumbled into your skin, “need you right now.”
You tried your best to wiggle free, but he had an iron grip around you. You carefully let the groceries fall from your hands to the floor, excepting your fate. He lead you to a nearby wall, pinning you against it with force. He still attacked your neck from behind you leaving trails of saliva up and down it. He nipped at the reddening skin beneath his lips as he wiggled his leg in between yours to open them up. He pushed your back so you were bent over with your hands holding the wall to steady yourself.
“Oso, not here. I won’t be able to hold myself up,” You begged.
“I’ll hold you up, don’t worry,” He kissed your ear.
He made quick work of tearing off your bottoms. His finger traced your pussy through your underwear, causing you to shiver. He shuffled behind you unzipping his pants and dragging down his underwear to release himself. One hand held your hips up as the other continued to rub your heat. He moved your panties to the side and rubbed his dick between your lips a few times before entering. You gasped as he stretched you out slowly. He groaned out as he filled your hole. He was courteous enough to give you a little bit of time to adjust, but not very much. His pace was lazy and slow as he started to thrust into you. He was vocal about how good you felt.
“Ah, Y-N. You feel so good squeezing my cock like that. I can barely stand it, “ He breathed out, gently taking one hand to fist into your hair. “Nothing is better than me filling up your pussy, right? It’s really good, huh?”
You whined as he tugged back on your hair. His thrusts were deep, but the pace was infuriating. You pushed your hips back to meet his thrusts, but urged him with your body to move faster.
“Can’t get enough of me, can you? You want my dick that bad? Do you want me to destroy you? I can do that for you, but you gotta say it,” He teased you, pulling on your hair so that you were looking back at him. “Say it, babe.”
You wanted to smack him, but obeyed his request, “Please, Oso. Please destroy my pussy.”
His pace fastened enough for you to squeak at every deep thrust. His hands left their spots on your hip and hair to feel up your chest. He snaked his hands under your top to massage your breasts, bringing you up slightly from your bent over position to press into his chest
“To think these are all mine, I can’t believe it. Only I get to feel you like this, it really is a dream,” He spoke with a childishness to his voice, “ Y-N, say my name. Pretty please? I love it when you say my name.”
You complied and moaned out his name. He rewarded you with a rough buck of his hips. He was lost in your sounds, rewarding you with every pant of his name. His hips were faltering and gaining speed. He brought one of his hands down from your breast to slink it’s way into your panties and rub your clitoris. A wanton moan left your lips as he rubbed perfect little circles into it. You were coming to you climax fast.
“Baby, I’m so close, “ He breathed into your ear, “give me more.”
You reached behind yourself to grab onto his thigh. He pressed your face to the wall and pounded into your heat. A coil wound itself in your stomach. You yelled his name as he sped up his hand and pinched your nipple. Your hand gripped the wall for support while the other rubbed Osomatsu’s outer thigh, encouraging him. He tipped over the edge of came inside of you, groaning into the room. You cried as you reached your own climax after him, shaking in his grasp. You slid down the wall to the floor with Osomatsu following. He removed his hands from their places to wrap around your middle. He pressed kisses into the crook of your neck.
“Mm, Oso. The groceries.” You tried to shake him off along with your high, but instead felt him tighten around you.
“Like I said before, they can wait. I can’t,” He replied, nuzzling into you.
You allowed him to cuddle you on the floor for the moment. It was peaceful, that is until you heard a snore.
