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The moment he wakes up, Shinobu knows he's gone into heat. He's drenched with sweat, and at some point during the night he had kicked all his covers off the bed. His roommates are nowhere to be seen, and he can only assume both of them had left the room vacated for his safety.
He's in so much pain, and so, so wet. With trembling fingers, Shinobu reaches for his phone on his bedside table, barely managing to type in his password and open up the messaging app. Rubbing his thighs together to try and generate some friction, he types out a shaky message to his mate, alerting him of his predicament and how he needed his presence immediately. In the meantime, he kicks off his pants and underwear and gathers up the slick collecting around his hole, pushing his fingers inside himself to try and stave off the urges his body is begging for.
It takes a few minutes, but his phone chimes a few times with answering texts, and Shinobu can only assume that Yuuta is on his way. Surely enough, there's the sound of a key in the lock, and the door is opened slowly. "Shinobu?"
"Yuuta," he calls back weakly, unable to muster the energy to raise his head. "I- I apologise for summoning you here so abruptly, but--"
"Don't apologise," Yuuta says immediately, shutting the door tightly. Shinobu can hear that his breathing is already laboured, and he's sure his scent is affecting his mate. He himself is breathing in deeply as Yuuta's scent wafts over to him. He licks his lips, craving him. "It's my job as your alpha to help you through your heat. We've been through this before, remember? You'll be fine."
Shinobu can only whine, curling his fingers inside himself. "I need you," he pants. "Yuutaaaa..."
His alpha wastes no more time, a chuckle bubbling from his throat as he comes to lift Shinobu from the bed, despite his wobbly legs. "Against the wall," he commands, and the omega’s legs go weak at his tone. Without question, he shuffles to the wall, leaking slick, and presses his back against it.
"Y-Yuuta..."
Coming closer, Yuuta kneels in front of him. He laps at the skin of Shinobu's legs, the ninja trembling in his spot braced against the wall. There's slick leaking slowly from his hole, trailing down his thigh, and Yuuta starts to catch it with each stroke of his tongue. The warm feeling of each lick has Shinobu leaking even more, a moan falling from his lips, and Yuuta growls lowly with pleasure.
Shinobu closes his eyes and presses his back closer to the wall, spreading his legs slightly at Yuuta's soft directive. His mate's tongue laves over Shinobu's hole, and he whimpers, legs shaking. He makes the mistake of looking down, only to be met by his alpha's mischievous grin before he kisses his small dick and returns to licking over his hole with more purpose, finally breaching it with the tip of his tongue.
Shinobu moans loudly, his dick managing a weak string of cum up his belly and a new wave of slick gushing onto Yuuta's tongue. He's embarrassed beyond measure to have come from the tip of his alpha's tongue pushing into him alone, but he's desperate in the throes of his heat, and Yuuta's taking full advantage of that. Gripping his thighs, the redhead fucks his tongue in deeper, curling it slightly, as if he's relishing the whines coming from Shinobu's throat. The omega’s dick is still fully hard, bobbing as he shakes to pieces against the wall, fucking himself on his mate's tongue.
Eventually, Yuuta must want to progress, because he removes his tongue and licks his lips in a way that has Shinobu's dick twitching. His gaze is trained on his alpha, and despite Yuuta cleaning him up so thoroughly, he can already feel slick running down his thighs again. Yuuta notices, too, and he clicks his tongue. "Right after I licked it all up for you~?" he teases, tugging Shinobu off the wall and into his arms. "It's not very nice to disregard my gift, Shinobu~."
Shinobu can only whimper in return, too far gone to form much of a sentence. His whole body aches, and he craves Yuuta's knot more than anything else. He knows Yuuta is entirely aware of this fact; the redhead grins before lifting his tiny omega up bodily, helping him onto his bed. Shinobu hits the soft covers with a squeak, immediately burrowing himself into the sheets. Despite being his own, the bed is drenched in Yuuta's scent, and he inhales deeply, rutting against the covers almost subconsciously. His mouth is watering, fingers curled around the blanket as he brings more of it to his face. Yuuta sleeps in his bed more nights than not, and clearly, it's paid off.
It's a few seconds before he feels the mattress dip with Yuuta's weight as his alpha climbs up onto the bed alongside him, coming to drape his body against his mate's. His skin feels like fire pressed against Shinobu's, and he moans again. "Yuuta... I- I need you," he whines, rocking back against the alpha. "I need y-your... Mmn..." He covers his red face, blushing up a storm at even the idea of what he's trying to say.
"My..?" Yuuta asks, smile in his voice. Shinobu feels his dick trailing up his thighs, collecting the slick there. Finally, it rests on his balls, not quite touching his hole. "C'mon, Shinobu, how will I know what you need~?"
"Your- Your c-cock!" Shinobu gasps out, his entire body on fire. He scrambles up onto his hands and knees, rutting back against Yuuta desperately. "Your knot! Please, Yuuta, please fuck me, I need it, I need you...!"
The blunt head of Yuuta's cock presses against him, and Shinobu nearly sobs with relief as Yuuta pushes into his tight hole without another word. His back arches, and Yuuta's teeth fasten onto his shoulder as his hips rock forwards, fucking his dick deeper into Shinobu.
Shinobu feels entirely full. He can practically feel Yuuta's achingly hard cock all the way up in his stomach as his alpha bottoms out, and he whines, struggling to catch his breath. He can barely keep himself up on his arms. "Y-Yuuta," he pants, breaths coming short and quick. "Yuuta, p-please, fuck me...!"
Yuuta growls, and he draws his hips back, pulling out almost all the way before fucking back into him in one swift motion. He grips Shinobu's hips tightly, setting a punishing pace, impaling Shinobu on his cock. The ninja's fingers curl into the blanket, shaking as he grips it tightly, crying out loudly. The sounds echoing throughout the room are absolutely filthy, his slick creating a wet slide in and out, Shinobu moaning like a whore.
He gasps his mate's name before his arms give out, his face making its new home on the covers below him, Yuuta's scent surrounding him. The change in angle seems to delight Yuuta, because he wraps his arms around Shinobu's waist and holds him tighter, fucking in even deeper than before.
"Shinobu," he moans, petting the omega's hair, a soft gesture that contrasts how hard he's fucking him at the moment. His fingers trail down the yellow streak, caressing his cheek, and ending up at Shinobu's lips. "Keep your voice down~."
Shinobu distantly registers what he means, and he opens his mouth to allow Yuuta to push three fingers in, taking their place on his tongue. Shinobu traces warm skin, licking between the digits. Yuuta hits a particularly good spot inside of him, and Shinobu desperately sucks at his fingers to keep the loud cry from escaping his lips.
"You're so cute," Yuuta purrs, now that he's taken away Shinobu's ability to protest. The ninja feels him draw out slowly, then push back in languidly. He's changed his pace to drive Shinobu crazy, and it's working. "I love when you're in heat. When you want me so bad~. Hahh, you're so small, look how big my dick is inside you~! I'm gonna fill you up, okay? That'll make you feel better."
Shinobu whine comes straight from his throat, spit dripping from his lips as he sucks harder. He pushes his hips back against Yuuta, who laughs and grips his waist harder with his free hand. "Do you want it?" he asks. He draws his fingers from Shinobu's mouth, the ninja gasping as he regains his ability to speak. He can feel Yuuta's knot swelling against his hole, and he wants it more than he's ever wanted something in his entire life. He needs Yuuta's cum in him like he needs air. He craves it.
"Yes," he sobs, scrabbling at the covers. "Yes, I n-need it, your knot...! Fill me up, p-please, do it..!"
He hears Yuuta growl, and suddenly his pace has increased again, his hips slapping against his ass harshly. His knot catches on Shinobu's hole, each thrust pushing it further inside. It feels amazing, satisfying the hunger inside him push by push, and eventually something in Shinobu snaps. He cries Yuuta's name as he comes, his cock leaking cum onto the sheets below him. He tightens around Yuuta's knot, his hole aching at the intrusion. Yuuta keeps fucking him mercilessly, and finally, his knot breaches his hole completely, causing Shinobu to cry out again.
Yuuta bites his shoulder so hard it draws blood, and humps against him desperately. With one last drawn-out moan from the alpha, the warm feeling of his cum begins to fill Shinobu, and the ninja whimpers with pleasure as his heat is sated more with every spurt. Yuuta's panting against his ear, his hips slowing to a gentle rock as he fills Shinobu up. Finally, the flow lessens, but his knot remains firmly in place, keeping his mate stuffed full of him.
Shinobu makes a soft noise as Yuuta lowers him to the bed, making himself comfortable beside him as he waits for his knot to go down. He pulls him close to his chest, wrapping his arms around him. "Are you okay?" he asks, nosing Shinobu's hair and pressing kisses to it.
"Mm.." Shinobu manages, his heart rate finally slowing. The heat that had been simmering under his skin since waking up has finally gone down, and he feels soft, sleepy, and content, snuggled up against his mate and filled with his cum. The fire will be back before long, and he'll need to go another round, but for now, his eyelids are fluttering. His stamina has always been poor, and it affects him the most during his heats.
Yuuta knows this, and he runs his fingers delicately through the ninja's bangs. "Sleep, Shinobu," he hums softly, pressing a few more tender kisses to his skin. "I'll protect you. I'm here."
"Love you," Shinobu murmurs, lifting his head to nuzzle against Yuuta's cheek before he succumbs to sleep, his head dropping against the covers. There's nothing he adores more than being surrounded by Yuuta's scent, a reminder of his love, and that's exactly what he has now. He's lucky to have him.