His Flow State
Synopsis: Note to self: Do not let Rin enter his flow state when he’s buried inside you, unless you don’t want to be walking around in the next couple of days! Spoiler alert, he doesn’t give you a choice. What he says goes so prepare a wheelchair!
TW: Rin Itoshi x Reader (Blue Lock) Smut, Possessive Rin, degradation, comfort, Rin enters his flow state, multiple rounds, squirting, accidental pissing, aftercare
We all know that Rin Itoshi, growing up, was a messy kid. He drooled all over the place without care and seemed more autistic than normal kids. He used to break his toys for no reason at all and would just fall down randomly. He even bit his crayons, which gave his parents a constant migraine.
But by the time he grew up and became a pro soccer athlete, most of those habits changed. He had simply outgrown them. Still, some habits never die, and sure, Rin keeps his room tidy now compared to his childhood bedroom—but make no mistake, Rin was still a messy person. It just manifested differently. And just like his crayons and other belongings, he liked to mark things in a more primal sense.
People would describe Rin as a black cat because he gave off that nonchalant, independent, loner kind of energy. And he really did look like the epitome of one—but he wasn’t. He was a dog. And if you were to classify him into a breed, he’d be a Doberman. Rin was loyal, protective, possessive, hyper-focused, and deeply attachment-driven. When you started dating him, he became more controlling—like an alpha in a pack, as cringey as it sounded. But that couldn’t be helped. That was just how he was.
That’s why, during the times you’d fuck, Rin went all out primal. He would practically pin you down in two specific positions always simce they were his favorites, using his weight as an advantage against you. He pinned so you could do nothing else but be forced to take what he gave. Rin was always on top and he always pressed you in the meanest mating press known to mankind or dirtiest doggy style that made every other position look like a joke. The name doggy style was pretty ironic, huh?
And just like all dogs, he liked to mark up his territory. Normally, he’d mostly drool inside your mouth and force you to swallow it or he’d leave several hickies on your neck in areas that were difficult to hide, the one time you did had Rin furious. He didn’t want you to be ashamed of him because why shy away from being part of his territory. He needed to mark you in some way that would make sure other people wouldn’t even try to mess with you. And ever since that day he made an internal promise to himself that the world would know you you belonged to.
Speaking of furious, the way Rin fucked you felt more angry than loving. Normally, the way he took you depended on his mood and today hadn’t been that bad, it was pretty normal and so it was a huge question was to why your soft but firm Rinnie was fucking you like this. He was fucking like you had done something wrong as though you committed an act of treason against him and this was your punishment.
He manhandled you so roughly as though you were meant to take all his built-up frustration, all of his weight, and everything he’d give you. And you needed to make sure not to waste any of it or else Rin would get pissed off even further. Your moans wouldn’t stop spilling out, while Rin insult and degraded you without hesitation just like he did with his teammates, calling you names like lukewarm, tepid, the usuals. But of course, he couldn’t help slipping in something some soft words and compliment every now and then as a reward.
“But you’re my good girl, aren’t you… just for me.”
And you’d expect Rin to be more composed but he wasn’t doing much better himself, he was just as wrecked as you, groaning nonstop and unable to stop the whimpers slipping past his lips. Though he had to admit, thanks to Blue Lock, his stamina was on another level. Otherwise, there was no way he’d last through this many rounds while you were already on the verge of passing out. How many times had you come? Six… no, maybe eight? He’d lost count. But Rin had no intention of stopping—not when he had you exactly where he wanted you.
He held you up by your legs, forcing them to spread open as he continuously and rapidly pierced through you. You laid down on the bed, crying out for mercy as you gripped onto the sheets beneath you for dear life. Rin’s drool fell over your chest and you couldn’t help but cry out and shudder at that. There you were squirming around pathetically, trying to get away while Rin refused to even part or pull out of you for more than 3 inches.
Good thing Rin installed sound proofing panels or else he'd have the neighbors complaining again about how loud your guy's activity was. And it would only get louder because Rin activated something in himself that he never expected to happen while he was inside of you. Unfortunately Rin entered his flow state, his eyes darkened with a different kind of focus and concentration as the tongue he was already having trouble keeping inside his mouth finally lolled out freely, saliva and drool dripping from it, landing on your stomach and sliding down to your pussy.
If you had been loud before, you could only imagine how it was like now as Rin’s thrusting style changed, it became harsher, deeper, and faster that it felt like it broke every law of physics. You were practically wailing his name beneath him as you tried to run away from his cock which resulted in Rin pinning you down with his weight easily.
He wasn’t going to let you go anywhere, you were going to take him all night if he wanted to because when you're in the flow, you perceive time differently.
How long has it been? 3-4 hours? You couldn’t even tap out because you were fucked dumb, you could barely even remember your own name. You were sobbing by this point, having been brought to the edge and pushed further until your body couldn’t keep up anymore.
Your eyes got droopy from exhaustion but Rin didn’t seem close to finishing as he bit the side of your neck so hard it bled a bit, it hurt but the pain he was giving you below made it seem harmless. It was sore and you couldn’t take it anymore so in a last effort attempt to get Rin to exit his flow state, you lifted both your exhausted arms with the last bit of strength you had left and dragged his face to yours, whilst his tongue stuck out.
People viewed Rin weirdly in this state and thought that he looked scary, but to you he wasn’t. This was Rin, the version of him that was completely unfiltered, and you accepted that and secretly found it hot. His mouth instinctively found yours and he shoved his tongue down your throat not caring if you couldn’t breathe. You looked up into those dilated eyes of his and pleaded for him to come back as you stroked his hair gently.
There you were pathetically claimed by Rin as he pinned your legs besides your chest, bending you in ways that shouldn’t be possible for your non flexible body. He continued to plow against you as he crushed your chest with his body, claiming you in a way that would ruin you for anyone else. Making sure that the shape of his cock was deeply embedded into that cervix of yours.
The bed creaked slightly with every thrust and Rin was so close to finishing inside you again especially when you looked up so desperately into him, like there was no one else in the world but you and him. But he could feel your fingers running through his hair gently and slowly, a complete contrast of how he was treating you.
Instead of slowing down at first, Rin proceeded to fuck you even harsher. One last time before he would stop, he’d give you an orgasm that was so mind shattering that you’d never even think of leaving him like his brother had. Maybe all along the reason why Rin was so rough with you was because of his secret underlying insecurities, that if he didn’t satisfy you. You’d leave him for someone better.
Rin was fucking insane for even thinking that. But anyways, none of that mattered to Rin as he kept going. He could feel his finish approaching quickly but he refused to cum unless you did it twice before him, his sheet willpower made sure of that. Your fingered exited his hair and made its way to his shoulders, trying to push him off for a break but he wouldn’t budge. It was like pushing a wall, it was unmoving and hopeless.
Your whimpers didn’t help and only fueled Rin’s fury. The air in your lungs dwindled dangerously and you had to rip yourself from Rin’s mouth and turn your head to make sure he wouldn’t chase after it. Good thing Rin had other plans, grabbing your breast he made sure to suck on it harshly, playing with it as though it was a stress ball.
Just like in soccer, Rin never misses. And he surely didn’t miss hitting you g spot and cervix at once, how the fuck was the even possible. Your thrashing got worse and you pleaded for mercy, the only thing keeping you awake was the violence he attacked on your poor body.
Your orgasm came quickly, Rin could feel you wrapping so tightly around him that it made the invisible hairs on his back raise as his thrust almost stuttered if he wasn’t so concentrated, he craved more though. Just once more and he'd be done with you, he internally promised you that. Besides this wasn’t the orgasm he was dreaming of giving you, you needed to squirt like a pathetic bitch. If you couldn’t do that, then he wouldn’t leave you alone so he had to make sure the next orgasm was the one that would completely finish and break you.
His arms left your legs and you wrapped it around his waist automatically. His hands snaked between the two of you and made their way to your clit, rubbing it intensely while the other made its way to the very large bulge in your stomach. He pressed down and the pressure made you curl your toes in approval. Rin was panting at all the stimulation and he could only imagine how you felt in this moment. Now looking at situation more properly, Rin could see that your stomach wasn’t just bulging from his cock, it was full of his cum. Shit, you looked so pretty like this, sobbing his name like it was the only thing you ever knew.
“Rin—Rinnie… R—… In… Niiiii… Rin—!!”
“Fucking squirt already.” He growled into you
And that you did, actually scratch that. You did more than that. You fucking pissed all over him, your orgasm hitting you so hard better than a train could ever do. You screamed his name out as your eyes fooled to the back of your head, tongue sticking out and you mimicked Rin’s flow state. Your orgasm and reaction couldn’t help but finish him off, your pussy gripped him so tight it felt like he was suffocating deliciously.
Rin felt sweaty, claimed, and so fucking satisfied. Your piss drenched the bed and him as he finally exited his flow state after that last orgasm. His cock softening and his hip bucking and twitching was slowing down until it finally stopped. He felt wet as both your cum and piss drenched his lower body.
He could see your eyelids dropping down until finally, you passed out from exhaustion. The last words you ever uttered was I love you. Rin loved you more, so much fucking more. He was a simp, though he'd never outright admit that. It was such a gift to him for you to present yourself and give yourself whole heartedly to him that you trusted him with your body which was oh so vulnerable.
He got up slowly and pulled his cock out of you, a conspicuous amount of cum dripped out of you but he wasn’t that concerned. He was sure that there was a lot more trapped in your womb, he needed to let some out or you’d feel too full in the morning. He was also exhausted too and felt his body too heavy, wanting to just ignore the mess you both made on the sheets and just lay down cuddling with you but of course he wouldn’t do that.
He was a man, and he had the responsibility of giving you aftercare and changing the sheets. The price he had to pay for using you in such an unconventional manner. He left you alone for a moment, running the bath tub and making sure to use your favorite products as he grabbed a warm wet hand towel to wipe you down.
After such, he finally carried you to the warm dim bathroom which was lit up only by your favorite candles. Rin wasn’t a romantic but he’d do this just for you. He wanted to join you badly already but he needed to clean the sheets. And only after that could he dare to join you.
The bath felt so relaxing as he was finally both in behind you, the hair he tied up with a hair claw clip was messy but functional enough, definitely something you wouldn’t do. But it was sweet how you cleaned you up slowly, massing and lathering the soap especially in between your legs trying to wash off all the slimy and sticky dry cum off of you.
He took you from the bath and dressed you in his blue lock boxers and a shirt of his that you loved. Putting you down in warmth from the fresh from laundry bed sheets, bringing the blanket to wrap the both of you up as he cuddled you close to his chest. Only then could he really let himself truly relax from the total of 7 hour activity he put you through, he slightly dreaded knowing he had to wake up early to make you breakfast but he'd do it for you without any complaints.
His eyes could barely stay awake as he kissed your forehead, “Goodnight (Y/n). I love you…” He whispered, finally letting sleep overtake him.












