Archive of Our Own

Soothing fingers run through Rin's hair. The tips make sure to scratch at the base of his ears, just how he likes it. His cheek presses further against Sae's thigh, the rumble of a purr vibrating through his throat. Teal eyes flutter closed as Sae's tongue brushes along the tops of his ears. Rin loved when Sae took care of him like this. He always knew how to make him feel better, even if it was only temporary. Sae knew nearly everything about him and this was no different. They had spent years together like this, both of them taking care of one another. Sae was always better at it because he had more experience but the last years they spent together after being separated, Rin had finally had to courage to comfort him as well.

A thumb brushes across Rin's lips. "Open."

Rin does as he's told, his lips parting, thin strings of drool connecting them as Sae runs his thumb over Rin's teeth. His canines are sore and his nose scrunches up when they're gently nudged.

"They're sore, Nii-chan, don't."

Sae stares at him as he pulls his thumb out of his mouth. "They'll be more sore if you don't tend to them. You know that."

There's no good part of a heat. Not even the pre-heat symptoms that come days before are anything positive. Rin gets warmer, his entire body constantly feeling flush even when he's wearing minimal clothing. His attitude is bad (well, worse) and it doesn't help that everything and everyone seems to want to annoy him. Different parts of him get extra sensitive, mainly his tail and his ears to the point of it almost being painful. Sore fangs, achy muscles, and increased fatigue too. For the most part, Rin can handle the symptoms. They're never fun but thankfully the majority of them can be soothed by medications and allowing himself to actually rest.

That's why he's home for a week. Rin didn't want to leave. All he wanted to do was stay in Blue Lock and practice like he knew he needed to. But one evening after his shower, he was called to the main observation room. The door had opened and Sae was there, standing emotionless as always as Ego told him that he was forcing Rin to take the week off. Originally, Rin had completely rejected the demand and he was ready to walk out the door when Sae spoke.

"Your heat is coming up."

Rin had scoffed. "Then give me my fucking medicine."

Suppressants were common and heavily used. No one wanted to go into heat or rut. Rin had been taking them for weeks now without issue. He didn't have time to worry about a pointless few days. Sae, apparently, had other thoughts.

"You need to have one. Your medical reports are pathetic."

"No playing if you decide to stay," Ego had added, swirling around in his stupid chair.

Suppression were never positive for the body. It's unnatural even if it was needed at some points. And Rin hasn't had a proper heat since the very first one he ever had. The very last thing he wanted to do was go into heat, especially during an important time. There wasn't a chance to slack off here. If he left for a week then who knows what would happen. Surely, he would keep his number one spot but everyone else under him could move up, including Isagi. That made his blood boil.

"Let's go," Sae had said, his hand waving at Rin, the door open and waiting for them to exit.

Rin wasn't happy to be home. He wasn't even necessarily happy to be with Sae. But he couldn't deny the natural comfort that came with having him around. Sae was a hybrid too. He knew far more than Rin did. Sae has always been more knowledgeable about the world and this was no different. So even though he was perhaps being grumpier than he really feels, Sae has been at his side since they returned home together.

Over the last day, Rin's body has adjusted to the lack of medication in him. The suppressants did a good job quelling nearly all the symptoms but there was always the tiny bits here and there that would sneak past. Without anything to stop them though, Rin's body feels as though it's trying to make up for lost time. Every part of him is flushed, so much so that he's only wearing a pair of small shorts and a tank top. His pheromones are overpowering everything in his room, even the clothes that Sae had given him for comfort don't even smell like him anymore.

"Up," Sae says as his phone buzzes from the nightstand. A hand gently guides Rin off of his lap and Sae slides out of bed.

"Where are you going?"

Sae's attention is on his phone, the screen glowing softly in the dim light of Rin's room. "I got you something that'll help."

Rin's brows furrow at the statement. Ears flatten against his hair when Sae starts walking out of the room, leaving Rin by himself. Fingers grip at the pillow he's had situated between his thighs the whole time, the fabric warm and slightly damp. The bed feels empty without his brother. The space around him is messy. Pillows are askew, one not even on the bed and left to lay off to the side against the frame. Blankets are nonexistent, the only one having been pushed and pulled by Rin in an effort to make a nest. Some of Sae's comfiest clothing is scattered around, mixing in with the pillows and the blanket. It was a horrible excuse for a nest but it's all that Rin could manage, Sae having instructed him that he needed to do it himself.

Ears perk up at the sound of Sae's voice. It's quiet and distant. If he had gotten something then perhaps it was a delivery. He knows he's been going through fever medication probably a little too fast. Maybe it's one of those cooling fans that Rin can set up on his nightstand to give him a constant flow of air. Rin's cheeks redden with a different kind of flush when he thinks of the other possibilities. Surely, Sae wouldn't get him anything like that.

Rin shifts in the bed, his legs separating to pull the pillow out from between them. The sound of his slick pad crinkles in response, making him press his hand flat against his crotch. Rin didn't like these either. He wasn't even going to wear one, but it was far better than leaking all over his shorts. His tail twitches when the sound of the door closing can be heard. Rin's hands gently knead at the pillow still lingering next to him as he waits.

A second voice makes Rin's heart skip a beat. Another person? What did Sae—

An obnoxious blue colored sprout is what comes into view first. Rin's body immediately stiffens. Isagi's face further confirms that yes, it is fucking Isagi walking into his apartment, into his room. And he's standing there with a stupid grin on his face as he lifts his hand up to wave at Rin.

"What the fuck, Sae?"

Sae leans against the doorframe, Isagi stuck next to him, not yet fully entering the room. "He's here to help you."

"Uh," Isagi laughs awkwardly as he rubs the back of his neck. "I texted him to check up on you and he invited me over."

There are two problems with the sentence. One, that Isagi was concerned about him. Two, that Sae thought it was a good idea to ask Isagi to come over. Rin was already mad that he had to leave in the first place. Mad that he had to go through a heat that held no purpose for him other than it helping relieve whatever bullshit the doctor had said to Ego. And now he was even more angry that out of all people, Isagi is giving him a shy smile as if he wants to be here.

"Don't do anything stupid," Sae announces. "I'll kill you if you hurt him."

Isagi's body straightens up. "Geez, I don't plan on doing that…"

Eye contact shifts between Sae and Isagi and then Sae and Rin. "I'll be in the living room if you need anything."

Rin lurches forward in bed. "Nii-chan, wait!" he says, desperately trying to get Sae to stop walking away. The older one doesn't listen and soon, it's only Isagi in the doorway.

"So…." Isagi starts as he finally steps fully in the room. "I don't really know anything about heats or kitty stuff."

Rin's eye twitches at the word kitty. His tail thumps against the bed, smacking the side of the mattress with intention as Rin stares Isagi down. If he stares hard enough at him, maybe he'll get scared and leave. Then again, it's Isagi. He isn't scared of Rin. In fact, one could argue that it's the complete opposite.

Out of all the people that Sae could have possibly invited over, why did it have to be Isagi? Was it because he had caught his eye after the U-20 match? Maybe it's the fact that Isagi is a beta and won't be affected by Rin's heat. Was it actually something Ego had put into motion? Why couldn't it have been….it could have been…

Well, there wasn't anyone else that sounded right to Rin either. It's not that he wants Isagi specifically but if he had to choose one person from Blue Lock then Isagi would certainly be the one. Everyone else sounded even worse, disgusting actually. Rin's arms cross over his chest as his ears lower against his dark green hair. Behind him, his tail flicks, the tip twitching in all different directions as he refuses to look at Isagi.

"Sae kinda told me some basics while we walked." Suddenly, Isagi's voice sounds closer. When Rin turns to look at him, the other is at the edge of the bed. His hand grabs at the now lukewarm ice pack that Sae had given him a few hours ago. "Oh, this isn't cold anymore. I can ask Sae for another. He said that you like the ice pack against your head since you have a fever."

"I'm fine," Rin mumbles, his tail starting to protectively wrap around himself the closer Isagi gets to him.

"Really? Cause you look super red and a little sweaty. I bet it'd feel nice." Isagi says, wiggling the melted ice pack in front of him.

The ice pack does feel nice. Sae had been nursing him with it all morning, constantly rotating them to help reduce his fever. The cold was always shocking at first but it felt incredible the moment his skin adjusted. Rin wanted it against his fangs but Sae had refused, stating that he knows Rin will bite it on instinct. So instead, he rubbed his fangs every so often, trying to mimic the pressure that he'd get from teething .

Rin decides to crawl upward on the bed, his pillow shifting back between his knees and his head landing dramatically onto the one still at the top. "Do whatever you want. I'm taking a nap."

Quiet movement fills the room and it turns into silence. Rin cracks his eyes open to see if Isagi has left. He's gone for an extended period of time, so long that Rin actually falls asleep.

What wakes him isn't Sae returning to give him medicine. It's not Rin stirring to grab the water bottle on his nightstand. It's not even the growing uncomfortable feeling in his core. No, it's Isagi snoring. Rin immediately shoots up in bed, his movements being so quick and rapid that it wakes Isagi up in the process. The other is sitting upright, leaning against the wall with his arms crossed. Isagi is in his bed, he's in his nest. Rin's chest rumbles in a low growl. He doesn't want Isagi in bed with him.

"Mm, hey, you're finally awake." Isagi yawns, his fingers rubbing at his eyes. "I came back and you were asleep. I guess I must have dozed off too."

"Get out of my bed."

Isagi blinks. "Huh?"

Rin's fingers sink into the blanket he must have grabbed during sleeping. It's tucked up against his chest, the fabric incredibly warm from his body heat. "I said, get out of my bed."

Isagi doesn't move. He doesn't move and a smile twitches his lips upwards. "I'm here to help you, not leave you all by yourself."

It hasn't been that long since Rin fell asleep. The light is still bright enough to come through the curtains of his room. It hasn't been that long but Rin's body feels nearly ten times worse than it did before he fell asleep. The initial shock of waking up practically on Isagi quickly fades when Rin's brain catches up. His body is still burning and his muscles still ache. But what really makes itself known is the instinctual arousal that comes with being in heat. For an omega hybrid like Rin, heats were meant for one purpose. And unlike his mind unfortunately, his body didn't exactly care who it sought relief with. Meaning that despite Isagi being a beta, his kitty is clinging to hope that maybe he'll help him.

Rin tries to fight it as Isagi sleepily stares at him. His hair is slightly messy, bangs a bit out of place and there's a gentle blush dusting his cheeks. He would rather be left alone than with Isagi. He would rather just hide under the covers and use one of the toys that he had gotten during his first heat. Rin would even rather just lay with Sae in bed and suffer through everything completely untouched than allow Isagi to see him in the state he is.

Right…?

"Rin."

Isagi has gotten closer. Rin was so deep in thought that he hadn't registered the other shifting toward him on the bed. He carefully watches Isagi's hand until it nearly touches the tops of his ears. Rin grabs him by the wrist, forcefully tugging his hand away.

"Hey, ow," Isagi whines, "come on, I was just gonna give you some scratches."

Nails dig into Isagi's skin before Rin lets go, shoving his hand away dramatically. He stares at Isagi, eyebrows raising when the other doesn't move. Thankfully, Isagi gets the hint and Rin is spared from having to give him verbal approval. Dark green ears twitch when Isagi's fingers brush over one of them. His hands are slightly warm so that was okay. The fingers move down to the base of his ear, nails scratching right where they disappear into his hair. Rin's eyes flutter close at the pleasant feeling. Isagi's fingers don't just stop there. They go between his ears, giving that spot a gracious set of scratches too. Then they travel to the other ear and Rin can't help but hum out in contentment.

"Are you purring, Rin?"

The question snaps Rin right out of the momentary bliss he had slipped into. He shrinks under Isagi's touch, ducking away from his hand and quickly scooting back. Isagi apparently finds it amusing.

"That means it felt good, right?" Isagi questions. "I had no idea you could purr."

When Isagi said he doesn't know much about kitty hybrids, he wasn't lying. "You're stupid," Rin huffs.

"Hey, that's mean," Isagi pushes back. "I'm trying to help you."

A scowl tugs Rin's lips down. His hands grab the pillow he's been attached to all day and holds it against his lap. The uncomfortable feeling between his legs and in his core are growing even as he's trying to stop it. He knows it's foolish to try and prevent what's going to happen because it'll just make things even worse. It's natural, he tries to reason with himself. It has absolutely nothing to do with Isagi himself. His body would be getting worked up regardless of whose with him in bed.

"Oh," Isagi suddenly says, "do you need to change?" The question makes Rin peer over at the other moving again on the bed. Isagi's hand reaches for the stack of medical supplies that Sae had collected over the past day. Medical supplies that includes a pad that Isagi holds out to him. "For your um…" Isagi can't even finish the sentence and his face turns bright red.

Rin swats it out of his hand, watching as it plops right down between them. His eyes fall to it as Isagi reaches to pick it up. Rin gets to it first and swipes it from his grasp to throw it on the floor.

"Rin."

"Isagi."

The human leans down to pick it up again. The pad is placed between them on the bed and Isagi's eyes meet Rin's. Stupid. Rin's tail flicks behind him, thumping on the bed once before he swipes the pad off the bed for a second time.

"Do you not want it?"

"No." Rin says firmly.

Rin knows that his pad is getting full. Every gush of slick that seeps out of him doesn't soak in. It's all collecting against him, the warmth doing nothing but adding to the desire brewing within him. By now, he's sure that it's already leaked out around his underwear, probably even soaking the very insides of his shorts. Rin doesn't like the things to begin with and the only reason he was wearing one was because Sae told him to. It's uncomfortable to begin with and now it was even more uncomfortable since it wasn't even doing its intended job.

"But Sae said—"

Rin's hands push at Isagi's shoulders. The contact is hard enough for Isagi to fall backward onto the bed. His eyes widen and Rin's tail flicks behind him as he crawls over Isagi's waist. Hands are pressed right next to his hips, the bed sinking down with the added weight.

"I don't care what he said. I don't want it."

Isagi stays silent as he looks up at Rin. Then, his eyes start to wander and the surprised look on his face disappears. What comes instead is a grin, a smirk, even. "You should probably take those off then."

Those means Rin's shorts. They're what Isagi lifts his leg up to press against. Rin's fingers curl into the sheets under them when Isagi's bare thigh rubs between his legs. Teeth sink into his lip at the pleasure that rushes through him. Rin's been teetering on his heat being almost too much for him for some time now. And the friction given to him from Isagi's thigh is making it incredibly hard to resist. So much so that Rin's hips move on their own accord, giving him a pleasant grind on Isagi's thigh.

A tiny noise escapes Isagi as Rin presses his hips down flush against his leg. His thigh is big enough for Rin to grind down nicely on. Ears fold downward and his tail lifts up, nearly reaching his shoulder blades out of happiness. It feels really good, like way too good. This is exactly why Rin has been trying to keep himself grounded, keep himself from slipping fully into his heat. The very first heat he had was insanely miserable, not only because of all the medical symptoms, but because of the arousal that wouldn't leave. It was as if he had drank an aphrodisiac. He had spent it completely alone, only with his fingers and unappealing toys to try and help. This time, help was being offered to him, given to him, without any true hesitation from Isagi. Rin knows if he just gives in that it'll feel far better than the embarrassingly pathetic attempt he would probably make himself.

The sound of his pad is obnoxiously loud and Rin's jaw clenches as it fills his ears. Rin lifts his hips up, only for Isagi to chase the touch again. His hand pushes Isagi's thigh down, ignoring the confused look on his face. One hand lingers on Isagi's leg while the other begins tugging his shorts down. They have to come off. Rin's one hand doesn't do the job and his other joins when half of his shorts are down. Fabric is peeled off his hot and sweaty skin. Thumbs tuck into his underwear when they brush past the top, joining his shorts as Rin pushes them down.

Rin can't see the thick strings of slick connecting him to the ruined pad but he can feel it. He can feel more slick slip out of him, tugging out of him as he wobbles to rid himself of the messy clothes. Isagi's hand threads through his bangs, pushing them back as he watches Rin with slightly hooded eyes. Rin's not oblivious to the fact that Isagi must find him enticing enough to offer to help him with his heat. Even if Isagi didn't know the finer parts of a heat, he certainly had to know what was being asked of him. And he may not be an alpha, but that didn't mean he can't be affected by what's happening in front of him.

"Fuck," Isagi breathes out the second that Rin's shorts are completely off. "Rin—"

"Don't say anything," Rin replies quickly, his breath hitching when he grabs Isagi's thigh and pulls it back into position.

If Isagi insisted on helping then Rin was going to use him how he wants to. Rin's lips part when his pussy presses flush against Isagi's skin. The contact is hot, Rin not knowing if it's from his own body temperature or from Isagi's. His face is red, a heavy flush disappearing down his neck and past the collar of his plain t-shirt. The tip of Rin's tail twitches, the soft fuzz of it brushing against the back of his arm.

His hand grips at Isagi's thigh so tightly that his knuckles turn white. Creamy slick starts to stick to Isagi's skin, collecting along the spot that Rin's rolling his hips against. Heavy breaths leave his lips as Rin picks up the pace. The pleasure has been building all day, enough for him to have softly pushed his hips down on the pillow between his legs, subtly trying to give himself a bit of friction. The pillow was nothing compared to Isagi's thigh. Even if he were to replace it now, he's certain that it wouldn't feel anywhere near as good as this.

Rin's ears lower nearly flat against his head as his orgasm approaches. Isagi says something to him, his hand reaching down to try and pry Rin's hand off his thigh. Rin doesn't budge, holding his leg as tightly as he can as he chases his orgasm. It's so close, so, so, so close. Rin doesn't even care about the consequences of having his very first orgasm. He knows it's going to push him fully to no return. He knows that after this, he'll have to keep giving himself pleasure to feel any sort of relief. None of that matters when the intense pleasure hits him.

A heavy exhale makes his chest rumble. Ears perk up and his tail from the tip to the base quivers madly in response. Rin's hips stutter, trying to keep the pleasure going even as his muscles tighten. He can feel his pussy pulse with happiness, wetness spreading out along Isagi's thigh. Isagi decides to help as well, moving his thigh in an attempt to mimic the movement that Rin has now stopped doing. Each tiny disconnect between their skin makes Rin squirt out against his thigh, tiny but quick streams splattering over the length of Isagi's leg.

Rin lets out a growl and he grabs his tank top, shoving the collar of it into his mouth, small fangs sinking right into the fabric. His thighs tremble around Isagi's, the hum of his orgasm still lingering between his legs. Rin shoves Isagi's thigh down, fully pulling it away from him. His eyes stare down at the mess he's made. Isagi's thigh is completely wet, so much so that even his gray shorts have remnants of Rin's orgasm on them. Rin narrows his gaze as he slides off Isagi, a soft huff coming from him as he turns away from the human.

"Hey, hey," Isagi chuckles, "why are you turning away?"

Rin doesn't answer. Instead, he crosses his arms over his chest.

The bed moves behind him. Rin's ears perk up when he can sense Isagi coming closer. His tail quickly moves out of the way when he feels Isagi's arm brush against it. Rin turns his head to see Isagi right behind him, his face dangerously close to his own, looking at him over his shoulder.

"That was really hot," Isagi says, his voice lower. Rin's back arches when he feels Isagi's hand ghost over his lower back. "Don't be embarrassed."

Rin isn't embarrassed. At least, he's not in the way that he's assuming Isagi thinks. It's not because of his orgasm nor is it due to the mess because of it. Rin's just…he's…

Fingers sneak under the bottom of his tank top. Rin goes to move away at the feeling but stops the moment that Isagi starts scratching at the base of his tail. "It's gonna get worse now, yeah?" Isagi's voice goes quieter to say the rest but Rin catches it. 'I think that's what Sae told me..'

The scratches make Rin raise off the bed, eagerly chasing more of the pleasing touch. Isagi hums, the sound tickling Rin's shoulder. Rin breathes out a tiny mewl, one that he unsuccessfully tries to swallow. Isagi keeps going, obviously pleased at the reaction from Rin.

"Stop being a brat and let me help you, Rin."

The pleased mewl turns into a grumble. Rin looks back at Isagi, his brows furrowing and his tail flicks to smack Isagi in the face. Instead of moving away, the other mouths at Rin's tail, missing several times before his lips press into the fur. There's a glint in Isagi's eyes as he playfully nips at Rin's tail.

This is annoying.

Rin refuses to look at Isagi.

He refuses even as his fingers are curling just right in him. Rin's face buries in the pillow he's gripping, arms tucked under it as he bites at the already wet pillowcase. Isagi pushes another finger into him, three stretching him out as he fucks them in and out quickly. There's an obnoxious chorus of squelching that comes from Rin himself. It's not like he had any doubt about how wet he's become, but the loud sounds each time Isagi's fingers move are a little much. Rin tilts his face, his cheeks squishing into the drooly fabric to take a breath. His eyes flutter when Isagi's thumb squishes against his clit. It's enough to make Rin shove his face right back in the pillow to muffle his moans.

Isagi likes to talk, Rin has realized quickly. "You gonna cum soon? You're getting tighter."

Rin's tail curves against his back. His hips are being held up by another pillow, the one that's been between his legs all day. Isagi had caught him trying to get another orgasm out when the other had gone to the bathroom. Rin thought it would be quick, his body was already craving more pleasure and it seemed like it would only take a minute or two to get it out. However, as he had predicted, the pillow did absolutely nothing for him aside from pathetically soaking up some of his slick. Isagi had huffed at him the second he came back into the room, whining that Rin was trying to do things on his own. And that's when Rin stuck his ass up and looked back at him, telling him to come help or get out.

That's how he's earned three fingers deep in him with a thumb rubbing very, very, pleasing circles against his sensitive nub. Rin's thighs begin to tremble as his orgasm does indeed start to build. It's slower than the first time, but Rin can already tell that it's going to be far more intense instead. His hands grip at the squished blanket next to the pillow. He's shoved the majority of the contents from his small makeshift nest upward, wanting to be close to them. There's also the worry of getting them messy, Rin also wanting to get them as far away from his pussy as possible.

"Stop fighting it, Rin. I know you wanna feel better."

Rin lifts his head up just enough to spit out a complaint. "Stop talking."

By now, his harsh words hold no weight. Isagi's fingers still in him and just as Rin looks back, a harsh slap is hit against his ass cheek. Rin's eyes widen, his face turning a shade darker of pink at the action.

"You're the one who asked me to do this."

Another slap against his other cheek makes Rin's pussy clench around Isagi's fingers. Fuck. Isagi definitely feels that. His face lights up and his fingers sink into him as far as they can go, his knuckles squishing against his folds. All three fingers press right against his spot, Isagi moving them quickly. Rin's eyes roll back and his hand sinks into the blanket, squeezing it as hard as he can. The movements are relentless and it's absolutely no surprise to either of them when Rin's body stiffens and his tail straightens nearly upright.

Isagi's fingers fuck him through his orgasm. Three move in and out him quickly as Rin's muscles flutter around them. His back arches, trying to get more and more friction as his body buzzes with pleasure. Rin can feel the drool start to collect under his cheek. The poor pillow is already saturated, unable to take anymore that comes out of him. Rin lazily bites at it, sucking the fabric in the corner of his mouth. Wetness squirts out along the insides of his thighs, the mess going everywhere due to how quickly Isagi is moving his fingers.

A wet hand pets along his entrance, fingers giving his clit a momentary tease before Isagi places a light pat against it. "Good kitty."

The pillowcase is pushed out of his mouth by his tongue, his eyes glaring back at Isagi. "Don't call me that." Rin's words are broken with shallow breaths.

"Are you going to fight me this whole time?" Isagi laughs, his wet hand raising to his mouth. A tongue swipes along them, picking up the creamier parts that have clung to his skin.

Rin's brows furrow in disgust. "That's gross."

"Mm," Isagi says, wiping the rest of the mess on his shorts. Rin's eyes follow and he feels his tail twitch when he sees Isagi's cock tenting in them. "Guess I'll leave then."

Rin watches, thinking that surely Isagi is just trying to rile him up more. However, Isagi actually starts moving off the bed. He wobbles as his feet lower to the floor, a hand threading through his hair and his other one reaching for his phone he's left on the nightstand. Rin sits up quickly, the pillow squishing beneath his hips.

"Where do you think you're going?"

Isagi hums. "Back home. I'll go tell Sae that you don't want my help—"

Rin's arm extends quickly, his hand grabbing Isagi's shirt to pull him forward. The human stumbles, the front of his legs bumping against the bed as he's harshly tugged. "You're not leaving."

It's obvious that Isagi is trying to act serious. Rin knows he has to be joking, there's no way he'd just leave. Especially not when he's very obviously turned on. When Rin lets go, Isagi doesn't move away from him. His hands sink into the edge of the bed for support and he follows Rin's hand that slides down his chest. Isagi's cock is pathetically hard in his shorts. Rin's hand can practically wrap around it through the fabric. Isagi squeaks out a noise, his hand coming down to join Rin's, lingering on his wrist.

"You want me to fuck you?" Isagi asks bluntly.

Rin's ears perk up in response before he quickly lowers them, realizing that it gives away the fluttering in his chest at the suggestion. His tail continues giving him away, flicking behind him in bouncy motions.

"Show me that you want it," Isagi dares to say. When Rin doesn't move, Isagi clarifies. "You can turn around so you don't have to look if you like that better. I'll fuck you as much as you want, Rin."

The words are embarrassing. They're horrible in Rin's ears for multiple reasons. But the most obvious reason is how good it sounds to him. Even just the suggestion of it has his body screaming at him for another release. It hasn't been more than a handful of minutes but now that Rin is fully in his heat, there's barely any relief that lasts. Rin stares up at Isagi, his lips pressing tightly together as he tries to talk himself out of the offer. There's nothing that convinces him enough to deny Isagi.

"You better not go fucking anyone else after this," Rin grumbles as he scoots back on the bed.

Isagi laughs. "Are you getting possessive?"

No. Rin wants to say. "Maybe," is what he says as he turns around.

Rin sucks in a breath as he leans forward, fully presenting himself to Isagi. His eyes go slightly hooded when he sees Isagi's hand palming at his cock. Rin's never felt more like an omega in heat before. Never in his life did he think he'd be presenting himself on his hands and knees, asking someone to fuck him. And he certainly didn't think that it would be Isagi of all people. This is exactly why he's been suppressing his heat. Rin knows how hard it was the first time. He knows how he nearly lost his mind in the middle of it. Rin didn't want to see himself like that and he didn't want anyone else to see him like that either.

A purr escapes him when Rin feels Isagi press his cock against his pussy. It's incredibly warm, the new warmth making him push his hips back to encourage Isagi a bit more. Fingers slide along Rin's hip until they reach the base of his tail. Rin's back arches, tail joining it when Isagi starts scratching the best spot. Isagi keeps scratching there as he pushes his cock in slowly. The double sensation has Rin's tongue sticking out, his chest fluttering in a flurry of noises. Isagi mumbles out a curse and when he bottoms out, his hips flush with Rin's, it's enough to set another orgasm off.

Rin's muscles contract wildly around Isagi's cock. So much so that Isagi gasps behind him, his hand stilling at the base of Rin's tail and the other hand gripping at his hip. "Shit, I almost just came there too." Isagi breathes. There's a pause as he pulls his cock almost all the way out before pushing it back in, starting to fuck Rin through his orgasm. "See, you wanted this," he says, giving Rin another slap to his ass. "Look how messy you're getting."

Rin doesn't need to see to know. He can feel it leaking out around the stretch of Isagi's cock. He can feel the way Isagi's balls are wet as they slap against his clit, more wetness squirting out with every thrust. A hand tries to grab at the pillow that's been forgotten off to the side. Rin's fingers sink into the fabric but is unsuccessful. Isagi is the one to grab it for him, pulling it closer to him for Rin to latch onto. He presses his face into it, quickly realizing that it's not the pillow he was resting his head on earlier. Instead, it's the one that's been between his legs for nearly a whole day. It smells like him, smells like his pheromones.

"Ah, how can you be so cute," Isagi says to what sounds like himself. "So needy and whiny. Wish you could be like this all the time."

Rin thinks that Isagi is just rambling now. He tries to drown it out by biting down on the pillow. The sensation is comforting, Rin's eyes fluttering closed as his lips tighten around the fabric. Isagi thrusts quickly, his hand rubbing at the curve of Rin's lower back, fingers just barely grazing along his tail. His cock isn't the biggest. It's not like the toys that are stuffed in the nightstand drawer only a foot or two away. But it's not the stretch that matters. The toys make Rin do all the work. Isagi is able to fuck him even as Rin starts to feel his mind slipping. He's already had a handful of orgasms and everything is getting more and more intense as his body continues to tingle with oversensitivity.

"Pretty kitty, nursing while getting fucked," Isagi grunts out. "Let me take care of you, Rin."

This time, Rin lets out a proper whimper. There's the build of another orgasm coming quickly. Rin can barely even process it before his pussy contracts around Isagi's cock deep in him. Toes curl against the floor and he rocks his hips back to get more pleasure. His lips pop off the pillowcase, messy and drooly mouth rocking against the soaked fabric as Isagi fucks him. Moan after moan spill out from him and Rin nuzzles his face again to try and quiet himself.

Isagi's cock pops out of him mid thrust, the length rubbing against his folds as he tries to push back into him. Fingers brush along his sensitive entrance and Rin thinks that Isagi is going to enter him again. Instead, he feels hot splatters along the backs of his thighs. Rin's chest bubbles with a purr, one that stays when he spreads his legs at the odd feeling. Isagi just came all over his thighs. The purring continues when Isagi leans forward, their bodies flush and Rin's tail curls around his waist. Fingers grab his chin and Isagi kisses him. It's a horrible angle and Rin doesn't bother trying to kiss back properly. His tongue laps at Isagi's mouth, licking him in response rather than returning the kiss. Isagi doesn't seem to mind though, his own tongue mingling with Rin's, allowing his spit to drip down in Rin's mouth.

The purr doesn't stop when Isagi is pushed down on the bed once more. Hands guide Rin to his lap and Isagi welcomes him with his fingers swiping along his folds. Rin's thighs tremble at the feeling. It makes it hard to sink down onto Isagi's cock but once he's positioned, he's able to slide down on it easily. Rin's back arches and his head leans back, ears going flat against his head. He's barely down on Isagi's cock before he cums once more. Isagi's cock slips out of him as Rin's body struggles to stay upright. A hand grabs his to keep him steady, Isagi reaching down to rub his cock through the mess Rin's making.

Rin's tongue slips out of his mouth again, his small fangs sinking down at the very corners of them as Isagi pushes back into him. The feeling makes Rin's tail quiver, the tip moving wildly behind him. His kitty has never felt so satisfied before. Rin didn't even realize he could feel so good. In the moment, it makes him incredibly frustrated knowing that he could have been feeling this every month. Instead, he's been swallowing pills that taste weird and making his body suffer.

"Rin," Isagi says as he taps at his hip, "a-ah, fuck, Rin, let me pull out."

Eyes narrow down at Isagi. His face is incredibly red and there's sweat that's gathered along his brow. Rin knows what he's trying to do. He should get off him, but he's also close to another orgasm and there's no way that Rin is going to stop now. This is his heat. So he pushes his hips down, refusing to lift up and choosing to roll his hips against Isagi's. The movement is enough for him, Isagi's cock deep in him and his body so sensitive that it's all he needs to get the pleasure he wants. Not only that but with angle of his hips, Rin's clit presses against Isagi's wet skin each roll, adding to the overstimulation.

"I'm serious," Isagi tries again, his cock twitching with his words. "Fuck, I'm gonna cum."

Isagi's voice gets higher at the end of his announcement. His hand hovers over Rin's hip, ready to try and push him off but instead, it hovers before hooking over his forehead. Isagi's face contorts into pleasure as Rin keeps rocking his hips against him. Teeth sink into his bottom lip and with one buck of his hips, Isagi moans out loudly. Rin feels his cock push deeper, the tip bumping against something inside of Rin, something that makes his body bend forward in shock. The sensation is neither good or bad, but as Isagi pathetically fucks up into him to ride out his orgasm, Rin's omega decides that it's a very welcomed feeling.

Through teary eyes, Rin leans forward, his lips parted and wet to let out heavy pants. Fingers wrap around Isagi's neck, the other's eyes widening in response. Isagi parts his own lips, ready to probably spit out an excuse for cumming inside of him. Rin doesn't want to hear it. "You're not leaving me."

Isagi nods his head quickly. "I wasn't gonna," he says breathily, keeping his eyes on Rin until the hand around his throat loosens. "But you have to let me pull out… um," Isagi averts his eyes as he says the rest. "you can get pregnant right?"

Rin huffs, his hips finally lifting up off of Isagi. A rush of slick and cum leaks out of him, all slipping right down onto Isagi's cock. "Don't ask anymore questions. Just fuck me like you said you would."

"Hah," Isagi laughs, "fine."

Rin learns very quickly that Isagi being a human sucks. No matter how much Isagi fucks him, there's no knot that comes. There's nothing Rin can look forward to in hopes of proper relief. Instead, he's stuck with human Isagi who not only doesn't have a knot but apparently also has horrible stamina.

Isagi groans out in exhaustion as he rolls onto his back. Heavy pants come from his kiss swollen lips and his eyes close until Rin crawls over him. "Rin," Isagi breathes," I need a minute."

Rin scoffs, his hands shoving Isagi's off his waist. "Where's all the stamina you normally have? Don't tell me you're giving up already."

"That's a bit different, don't you think?"

There's a laugh from Isagi but Rin isn't laughing. This isn't funny. For the last two rounds, Isagi has been slowly getting sloppier and sloppier. His thrusts haven't been as good or as deep. He's barely fucked Rin through each of his orgasms, his cock stilling in him because Isagi thinks it's a good time to rest. Sweat has been dripping off of him constantly, dripping all over Rin's skin and if Rin wasn't in heat, he would be disgusted. Now though, any slight momentary stop makes Rin grab Isagi and pull him right back. He offered to help and so he's going to help.

"You're pathetic," Rin says as he continues to crawl over Isagi.

The other's eyes follow Rin's movements, they nearly cross when Rin's thighs press against Isagi's cheeks. "Rin," he says, his voice hot against his slightly swollen pussy. "Holy shit."

Fingers push through Isagi's sweaty hair. Rin tugs his head up until his mouth presses against him. Isagi's eyes look up at Rin as he gives him a gentle kiss on his folds. Rin tugs at Isagi's hair more at the feeling, pulling him closer as he shifts his thighs to enclose his head further. Rin doesn't want to be the one to do the work but if Isagi isn't going to get up and fuck him again, he's going to have to do it himself. Isagi's eyes flutter close as his tongue slides against Rin's pussy. Rin leans his head back, his hips gently rolling against Isagi's face.

His movements are subpar at best but combined with the rocking of his hips, it's enough. Isagi's tongue presses flat against his entrance, slipping inside when Rin presses his pussy flush against his face. Hands gently grab at Rin's thighs and Rin expects Isagi to try and pull his legs away from him. Rin is pleasantly surprised when Isagi does the exact opposite. He's enjoying the fact that Rin's thighs are squeezing his face. Isagi moans against him, the vibrations going straight to his core.

Every part of him is so sensitive. Even the fingers pressing into his thighs are making his core warm with another orgasm already. He growls as Isagi moves his head up just enough for his tongue to swipe against his clit. Lips try to tighten around it, only to be stopped when Rin continues to ride his face. Isagi's hands hold Rin's thighs still to be able to properly suck on his clit. Rin's nails dig into Isagi's scalp, his hand tugging at his hair with a moan. Ears go flat against his hair while the human both licks and sucks at his sensitive nub.

"Fuck," Rin says through his teeth as he cums.

Thighs tremble against Isagi's face as the waves of pleasure take over. Every orgasm that comes only makes things for the next one go faster. In Rin's own words, it's pathetic how easily he can cum. Each one feels incredible, so incredible that it practically rolls into another as Isagi struggles to pleasure him through the current one. Lips and tongue attempt at doing something below him. But Isagi suddenly pushes at Rin's thighs in a desperate manner. Rin lifts his hips up slightly, just enough for Isagi to suck in a quick, deep breath.

A wet cough melts into his skin as Isagi licks a flat stripe along his wetness. Rin can feel the tremors quicken in his pussy again and he reaches to the side, fingers gripping at the bed for extra support. A thumb on his clit pushes him right into yet another orgasm. Rin's tail twitches behind him before going nearly straight up along his back. A strained noise rips from his throat due to the overstimulation. He can hear Isagi mumble something as wetness gushes out of him once more, some of it squirting out on his own wrist.

"Are you okay?" Isagi asks as one hand moves along his waist, helping support Rin as his body starts to give out. There's a gentle kiss that's placed to his inner thigh as he waits for him to answer.

Rin's hand slides out of Isagi's hair, allowing his body to relax into Isagi's arm. "I'm fine," Rin says shakily.

"Lay down with me," Isagi tries, "I know you're tired. You should get some rest."

Through hooded eyes, Rin presses his lips together. He doesn't want to. He knows that he'll just be woken up by the desire that's already building in him. It's not going to be a pleasurable rest no matter how exhausted he is. Despite that, Isagi attempts to guide Rin off of him. It works half way, Rin allowing Isagi to help him off his chest. It's then that he sees how wet Isagi's face is. Most of it is from Rin himself but there's small spots of creaminess that have to be from Isagi's own cum leaking out of him.

"Where are you going?" Rin asks when Isagi starts to sit up the second Rin lays down. "You're not leaving."

"I'm not," Isagi replies quickly. "I'm just going to wash my face."

Rin's eyes narrow. "No."

"I'll be right back, Rin. Just—"

Isagi doesn't finish the rest of his sentence because Rin tugs him closer, dragging him back down until their bodies are flush. Rin doesn't feel like explaining and so instead, he simply does what he wants to do. Isagi stiffens when Rin's tongue licks at his cheek. One spot gets licked then another, then another, then another.

"Rin, what are you doing?"

"What does it look like?" Rin huffs, his lips pressing to Isagi's forehead. "Cleaning you."

Isagi shivers when Rin licks over his lips. "It tickles," he laughs, chasing Rin's mouth when he moves away to lick at a different spot. "You're so cute," Isagi mumbles into a kiss.

Rin decides to ignore the compliment. By the time he's finished wiping Isagi clean, the other is laying there with his eyes closed. Rin thinks that he's just enjoying Rin's ministrations but it soon becomes apparent that no, Isagi has fallen asleep. He presses his hand against his chest, ready to rustle him awake. Isagi doesn't have time to be sleeping. But Rin stares at the way his face is relaxed and peaceful asleep. Eyes roll as Rin scoots to lay down next to him. Isagi will have to make it up to him later.

Light no longer comes through the curtains when Rin gets a glimmer of relief. It's not completely over, he knows that but for the time being, his kitty is feeling satisfied enough to let him breathe. The small break allows Rin to go shower, the lack of heat haze clouding his brain making him realize just how disgusting he is. Isagi had offered to join him when Rin's legs wobbled and his steps were unstable. Rin eyed him for a moment, considering the offer but he didn't trust Isagi to be able to wash him properly. He especially didn't want Isagi touching his ears or tail. Rin only trusted himself and his brother to take care of them.

When Rin returns, Isagi is lying in bed. Rin doesn't notice anything off until he sees that Isagi is in his clothes. Rin's eyes narrow as he walks over to the bed, slowly crawling onto it as he slaps at Isagi's leg.

"Ow! What the hell, Rin." Isagi whines, his hand immediately coming to rub at the spot that Rin had just smacked.

"Who told you that you could wear my clothes?"

Isagi's lips curl into a smile and it makes Rin narrow his eyes even more. "I thought you might like it. I know I don't have pheromones but I can try to make them smell like me. You know," he pauses to motion to the blanket and scattered clothes around him. "For your nest."

Arms cross over his chest and he averts his gaze. The idea isn't bad. Sure they just showered and Isagi had more almost all of Rin's scent on him but he knows after a few more hours, it'll switch. Isagi doesn't have pheromones, despite that though, he still has a scent, one that Rin can recognize as Isagi. Rin admits defeat by crawling toward the other and settling down next to him.

"Do you want to go again or…."

Rin's ears flatten against his hair. "No."

"Then what do you want to do?" Isagi questions when Rin scoots closer to him, pressing flush against his side. "We could, ah," he pauses to watch Rin grab the blanket that's half hanging off the bed. Isagi lifts his arms up when Rin starts shoving the blanket under them, spreading it out silently against Isagi's body. "Wait, that's dirty… why don't we get a fresh one if you wanna use it."

A glare is shot toward Isagi. "Do you not understand the point of a nest?"

"Well," Isagi replies quietly, his tongue darting out to lick along his lips when Rin slides on his lap. "I think so but, hey, I thought you said you didn't want to go again?"

Once the blanket is properly spread out along Isagi's chest, Rin tugs back the top of it just enough to make a small raised layer. His hands stay on the blanket, palms flush against the fabric and fingers closing and opening around it. If Isagi wanted to make things smell like him, Rin was going to make his blanket smell more like him. The majority of the mess made on it was from Rin, a combination of drool and his own cum in random places. Putting it on Isagi's chest will hopefully transfer some of his scent eventually. Besides, it felt good to let his kitty take over in a less intense way.

Gentle purrs start to rumble in Rin's chest. A knock at the door makes him peer over. Sae doesn't wait for an answer before he opens the door, his teal eyes staring at Rin in particular. As soon as he gets close enough, Sae's fingers card through Rin's hair. The purrs in his chest get louder, his head leaning up to nuzzle into Sae's touch.

"Hm," Sae says as his fingers slide under Rin's chin, giving him nice scratches there too. "Feeling better, Rin?"

Rin lets his purrs answer for him, his hand clutching at the blanket under him. He knows that Sae doesn't need a proper answer anyways, he can sense the shift in Rin's kitty. It's most likely the reason he came in. He can feel Isagi's chest expand, wanting to speak but Sae doesn't allow him.

"You get one more day," Sae instructs, "then leave."

Without his heat clouding his mind, Rin doesn't viscerally react to the idea of Isagi leaving. Instead, he continues to allow Sae's touches soothe him. Isagi will come back anyway. He'll come right back the second that Rin asks him to. Rin's eyes peer down at Isagi, the other one letting out an awkward laugh. Rin lets out a scoff as he lets his eyes close again to nuzzle up into Sae's hand.