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Burning in my Mind

Summary:

“Later, Kyo, besides being heard, Tanjiro will smell the scent of our arousal on us.” Giyuu moaned breathless, stilling Kyo.

“Smell arousal?” Kyo choked. “His sense of smell is that good?”

“Mhm.” Giyuu hummed, watching in amusement as Kyoujuro paled. “Granted my Tanjiro never got to learn your scent fully so chances are this Tanjirou just thinks that you all hot and bothered is just how your scent is.”

“It’s not funny!" Kyoujuro whined, burying his face against Giyuu’s neck as the man chuckled. “You’re telling me he can smell the fact that he’s been the source of my arousal for an entire month now!”

Notes:

Happy Yule!!@

(See the end of the work for more notes.)

Work Text:

 

Giyuu was exhausted by the time he reached the Regoku estate, he had been delayed by two days and was cutting it very close thanks to a persistent demon that had managed to evade a few demon slayers and asked for help as he was passing through. 

 

He did manage to acquire what he had been looking for though and he hoped that it would make up for his delayed arrival. A surprise for Tanjiro and his favourite sweet potato bites for his Kyo. 

 

“Giyuu-san!” Senjuro’s voice greeted with excitement the moment he stepped into the estate. “You’re late! Aniue will be pleased to see you, he’s been stressing for days now.”

 

A small smile tugged at his lips. “Senjuro, sorry I am late. Where are Kyoujuro and the others?” 

 

“Training yard. Aniue is getting Tanjiro-san, Zenitsu-san and Inosuke-san to try and land a hit on him.” Senjuro explained with a laugh. “It is not going too well, though Tanjiro-san has been the closest, but it is to be expected.” 

 

“Oh?” Giyuu asked as he caught the inflection. 

 

“You will see Tomioka-san!” Senjuro smirked, gesturing for him to go find them. 

 

Giyuu hummed, not surprised in the least that Senjuro had been told of their crush on Tanjiro. He’d always been very keen if not a bit too shy and Kyo had long since sent another letter to send back Kanzaburo that included wonderings on trying to decide if the younger Rengoku should be buried in snow or hugged to death. Giyuu had been laughing for nearly ten minutes straight in the middle of the woods like a mad man. 

 

With the familiarity of someone who had visited the estate many times, Giyuu strolled through the house to Rengoku’s room to put down his belongings. The thought briefly occurred to him to do his own teasing and change into one of his Kyo’s yukata but he had already decided to join in on the game of trying to get a strike in on Kyoujuro instead. Another brief stop in the store room where the Rengoku’s kept the spare bokken and Giyuu was stepping out on the engawa to see how his lover was fairing in the three vs one he’d instigated. 

 

Senjuro’s smirk made much more sense when he was met with the, to him at least, familiar sight of Tanjiro training topless alongside his friends. This group didn’t have the same familiarity that led to them being the deadliest team up in the history of the slayers but he could definitely see the foundation of it taking shape. It was funny to watch though as Kyoujuro would get distracted by Tanjiro contorting like a dancer that he would only block the hit in the barest amount of time. 

 

Knowing that the students had more than clocked his presence thanks to their sensitive senses, Giyuu took the time to fold his haori and remove his own uniform top. Unfortunately for Kyoujuro, Giyuu was just as used to the cold as Tanjiro and he was feeling very warmed up from his run here. Between one breath and the next he slotted himself into the group of slashing swordsmen going for hits on students and teacher in equal measure. 

 

He noted with a pleased smile that when Giyuu went for Kyoujuro’s blind side, Tanjiro was there blocking the hit and vice versa. He could also tell that his partner was very flustered and he was very curious on how he smelled to Tanjiro right now. 

 

“Alright, I think that is enough for today. Have a break, dinner should be soon.” Kyo said firmly, with a pant. “You all did good!” 

 

Zenitsu and Inosuke quickly hurried back inside, one towards the bath and the other for food. Tanjiro merely stayed and wiped his sweaty brow with a wide grin. “Tomioka-san! I didn’t know you were coming!” 

 

“I like spending the holiday with my favorite people.” Giyuu hummed as he poked Tanjiro’s forehead before going to put his top and haori back on. “And I brought a present for you and your sister. Don’t pout at me, Kyo, if you hurry to get cleaned up your present will still be hot.”

 

Kyo perked up. “Sweet potatoes!?”

 

“Yes, yes, those sweet potato bites that I swear you love more than me.” Giyuu huffed with a roll of his eyes. “I stopped in the market on my way in. They’d just pulled a fresh batch. Don’t spoil your dinner.”

 

Giyuu just sighed as Kyo vanished before his eyes, leaving him with Tanjiro. “How has your recovery been? I take it Shinobu-san has given the okay for full training again?”

 

“Yes, she has, it's been great! Rengoku-san gave me books on the other breathing styles to read while injured and Flame Breathing has helped me with my Kagura. Thank you for asking, Tomioka-san.” Tanjiro smiled wide with a laugh, completely missing Giyuu’s anguished look. 

 

“I left the gift on the engawa with my Haori.” Giyuu said and watched as Tanjiro’s face morphed from a smile to disbelief, tears pooling in his eyes as his fingers traced his father’s mask, the rest of the ceremonial wear still neatly stored in the box just like the last time he’d seen them.

 

“How…?” Tanjiro managed to choke out, it was lost in the original timeline and he had yet to make it back to what was home in this life. 

 

“Your home is in my jurisdiction, I made a quick detour on the way back after a mission.” Giyuu said softly. “I know how important it is to you and Nezuko, I know you've expressed that you wish you could get it, so I did.”

 

In the next moment all the air was knocked out of Giyuu’s lungs as Tanjiro barreled into him with a barely restrained sob. “Thank you. You don’t have any idea how much this means to me, my Yuu.”

 

Giyuu habitually hugged Tanjiro back, my Yuu, no, he must have heard that incorrectly. His Tanjiro was gone and even then, only rarely did Tanjiro call him Yuu, always Giyuu. They never had the chance to be each other's anything. Like always, Giyuu didn’t know what he had or took for granted until he lost it. It was just wishful thinking, that's all. 

 

“There’s no need to thank me, Tanjiro, it’s the least I could do.” Giyuu whispered into his hair, his eyes locked on Kyo who was pouting while eating his treat, hidden in the dark. 

 

“Of course there is Tomioka-san, this is my family's heritage.” Tanjiro laughed wetly, pulling back to grin up at Giyuu. “I better go clean up before dinner and show Nezuko!” 

 

“You do that.” Giyuu hummed before tugging a lock of Tanjiro’s hair. “It’s been a long time since I’ve seen you with your hair this long. I’m not as good as Urukodaki-sensei but I can trim it up if you need.”

 

“Mm, I’m letting it grow out again.” Tanjiro said with a shake of his head and a soft laugh. “Hopefully if she can mess with mine again Nezuko will leave Rengoku-san’s alone during dinner. I’m so glad you could come though! Nezuko will be so happy to see you!”

 

Tanjiro ran off before Giyuu could respond again but he’d always been understanding of how quiet Giyuu tended to be so Giyuu didn’t mind. Instead he stepped onto the porch and right into Kyoujuro’s bedroom where his eye practically glowed in the dim lighting as he tore through his treat. 

 

“Seems Tanjiro stole the first hug, my love.” Giyuu teased as he stretched. “Think a kiss and a shared bath could make up for it?”

 

Kyojuro closed the door behind him and pressed his Yuu against the solid wall, tugging at his clothes as he nipped and sucked along that pale expanse of his throat. “You have no idea the torture I’ve gone through, him wearing my clothes, defending Sen and I, the way he moves with his own breathing. I have longed for you, Yuu.” 

 

“Later, Kyo, besides being heard, Tanjiro will smell the scent of our arousal on us.” Giyuu moaned breathless, stilling Kyo.

 

Smell arousal?” Kyo choked. “His sense of smell is that good?”

 

Mhm.” Giyuu hummed watching in amusement as Kyoujuro paled. “Granted my Tanjiro never got to learn your scent fully so chances are this Tanjirou just thinks that you all hot and bothered is just how your scent is.”

 

It’s not funny!" Kyoujuro whined burying his face against Giyuu’s neck as the man chuckled. “You’re telling me he can smell the fact that he’s been the source of my arousal for an entire month now!”

 

“Well I doubt he’s figured out that one that’s the smell of you being aroused and two if he’s anything like my Tanjiro was he certainly doesn’t think he’s the cause if he has.” Giyuu soothed as he ran his fingers through Kyoujuro’s hair. “I’ll take very good care of you during our bath though, don’t worry.”

 

Kyo whimpered and pulled back, running his hand down his face in exasperation. Though, that was soon turning devious and it was that look that had Giyuu questioning everyone BUT Uzui that thought his Kyo was a pure innocent being. He wasn't and that smile told Giyuu that he was going to suffer just as much as his Kyo had been. 

 

“But he knows your scent.” Kyoujuro said mischievously. 

 

“He does, but he’s likely going to attribute anything he smells from me to you.” Giyuu hummed his own smile turning just as mischievous. “Though, I am curious as to what our combined scents smell like. Plus if he thinks you being aroused is your natural state I get to have some fun teasing you as well.” 

 

Kyo stepped forward again, crowding his partner and roughly grabbed his hair, drawing out a soft moan. “Remember my Yuu, two can play that game. I am riled.” 

 

“Good,” Giyuu smirked. “Let’s go get ready for dinner Kyo, the boys should be done now.” 

 

Minx.” Kyoujuro murmured as he nipped at Giyuu’s neck once more before stepping away to gather his clothes grabbing the matching yukata to the one Tanjiro had worn for a few nights earlier in the week. 

 

It had been returned to his room unwashed and still smelling strongly of Tanjiro even to Kyoujuro’s weaker nose. His nosy little brother was inching further away from being buried in snow from his meddling with the action. Still it awakened something in him and now he needed to see Giyuu wrapped in his clothes as well to complete the image in his mind though the temptation was certainly there to dress him in the same yukata Tanjirou had worn so that both their scents could surround him as he ravished Giyuu. He refrained for now though not wanting to weaken Tanjiro’s smell on the fabric. 

 

Without a moment's hesitation he grabbed Giyuu’s wrist and dragged him back to the bath house. On a normal night this would have been a soft intimate thing for them but Kyoujuro has been pent up for well over a month now. Nothing about him was soft currently and they didn’t have time to take things slow and still make it for dinner. 

 

A sly smile lit Giyuu’s face as they slipped into the hot water, Kyo’s gaze darkening with want as Giyuu happily straddled him. A soft moan fell from his lips when immediately Kyoujuro’s fingers found his entrance easily making their way inside him thanks to his break to prepare himself before he reached the estate. 

 

“Already ready for me?” Kyoujuro murmured hungrily, savoring the way Giyuu immediately ground back onto his fingers. 

 

Ah~ I knew you’d need a release but you like to take your time prepping me.” Giyuu moaned as he nipped along Kyoujuro’s shoulder. “Time we wouldn’t have if we’re limited to bath time for me to take care of you, my love.”

 

“There are not enough words in any language to describe how much I love you right now.” Kyo groaned as he easily slipped into Giyuu. “Tease.” 

 

“Oh I could show you a tease.” Giyuu moaned even as he began rocking to ride the cock stuffing him full. “So Kyo, do you want me to tease you? Because I can. I know every spot that drives you insane and would love to play with them all just to leave you wanting even more. Is that what you want, my love, or do you want to fuck me senseless?”

 

“You knew this was going to happen, Gi~yuu.” Kyo growled low, hands grasping Giyuu’s hips hard. “Perhaps I should bring you close to the edge, over and over and leave you wanting.”

 

“If that’s what you want, my love.” Giyuu moaned more than used to Kyoujuro edging him because it was something the blond enjoyed long before Tanjiro had unknowingly tortured him for a month. “I’m just happy to finally have you inside me again. This is for you. I’m not worried about finishing tonight as much as I am helping you relieve the tension. Use me as you wish, Kyo.”

 

A low groan ripped from Kyoujuro at that, his teeth sinking into the pale skin of Giyuu’s shoulder as he thrust up so hard the water around them sloshed. The action ripped a loud cry from Giyuu that had him doing it again just to hear more of that sound. Their last time together had been at the butterfly estate where they’d had to stay quiet but now in the privacy of the Rengoku estate Giyuu could scream and the only one who stood a chance of hearing would be Zenitsu. Giyuu wasn’t prone to overly loud wails though so Kyoujuro had nothing to worry about as he thrust himself into the man’s tight heat over and over again. 

 

Fuck, Kyo!” Giyuu cried out, tangling his hands in loose blonde locks as he held on for dear life. It felt like ages since Kyoujuro had last been this rough with him and he’d missed it. 

 

“You’re always so tight, Yuu, feels so good.” Kyo groaned. “I am already close.” 

 

“Don’t hold back, we have time for a couple rounds if we're quick.” Giyuu murmured as he nipped along Kyoujuro’s jaw. 

 

Kyo shook his head. “Can’t there's something you should see. Hold on, my love.”

 

With that Kyo got to his feet, stepping out of the bath easily, letting Giyuu’s weight to spear himself down harder. He pressed him against the smooth wood of the bath house and stopped holding back.

 

Ah~ fuck!” Giyuu panted nails digging into Kyoujuro’s shoulders as he held on. “You… ah, Kyo!.. you being able to hold me up… against a wall isn’t anything new.”

 

“M’close, said stop holding back so I am.” Kyo growled, pinning his love to the wall by his throat and keeping him there, savouring the pleased look in his eyes.

 

Like before, Kyo slipped his hand down, fingers curling around his cock and when Giyuu rocked down next, he stretched him further, devouring the loud moan. 

 

“Fuck, fuck, fuck.” Giyuu panted his head knocking back against the wall as Kyoujuro fucked into him harder. The added stretch of his fingers alongside the blonde’s cock told him exactly what the man wanted even without words and this time he didn’t even have to be quiet about it. “Ah, Tanjiro, Kyo fill me up! So full! Don’t… ah~ don’t stop!”

 

Cum for me now!” Kyo growled just as he reached his climax, Giyuu toppling over the edge with him. “Good boy.” 

 

They stayed like that for a few beats, coming down from their high before Kyo pulled back. “We should bathe properly.” 

 

“And if I want him to smell you on me? In me?” Giyuu asked with a purr. “What if we start trying to tease him, show off for him my love.” 

 

Minx.” Kyoujuro huffed as he pressed heated kisses along Giyuu’s throat. “Wish I had enough time to truly wreck you. You’re so cuddly when you’re all fucked out and full of me I bet you’d try to get him to hold you right in front of everyone. If you wish to tease his nose so badly we can sit him between us at dinner. I wonder if we can get him drunk enough on the smell of us that we hear him moaning our names tonight?”

 

“And you call me a minx.” Giyuu teased as they quickly did a quick wipe down and dressed. 

 

Kyoujuro just grinned at him as he did the tie on his yukata not bothering with the obi since he’d left it abandoned in his room. He waited just long enough for Giyuu to tie his own yukata before yet again grabbing his hand to drag him to the dining room. 

 

Everyone was gathered once they had arrived, the table set and Senjuro plating everything for them. Tanjiro turned towards them with a smile, blinking at them as his nose twitched. 

 

“Something smells tasty!” Kyoujuro exclaimed eagerly.

 

“Tanjiro gave me recipes to try that his father used to make, it is a little spicy so be warned.” Senjuro exclaimed happily, glad that he was able to learn and make new foods.  

 

“I’m surprised you had peppers on the mountain.” Giyuu hummed softly as he settled on Tanjiro’s left just like he always had when they took meals together. He had to fight the urge to smirk when Kyoujuro immediately occupied the space to the red head’s right, both of them much closer than they needed to be without fully intruding in his space. Still if any of them reached for something in the middle of the table their shoulders would touch. 

 

“Oh! Otou-san had a little patch for them in the family garden.” Tanjiro said, fighting to keep his voice steady as their scents surrounded him. “Nezuko and Takeo tended to it and the rest of the garden for him when he couldn’t do outside tasks as easily any more. It’s not too spicy, more numbing really.  I didn’t put the usual amount on Senjuro’s copy of the recipe since peppers are harder to find this time of year if you don’t already have dried ones stored.”

 

“Interesting!” Kyoujuro laughed, pressing lightly into Tanjiro as he reached to accept his serving from his brother. “It certainly looks delicious! I can’t wait to try another dish you grew up on.”

 

“They’re not that fancy.” Tanjiro whined in embarrassment, his face flushing a light red that had both Giyuu and Kyoujuro unable to look away for a few moments too long. “Almost all our food came from things we could hunt or grow ourselves so it’s all simple fair for people living in towns.”

 

Zenitsu snorted at that. “Yet, it is always you people ask to cook when we meet other slayers and camp out.” 

 

“It is not my fault that nobody respects the necessity that is salt!” Tanjiro said with a huff. “Other spices fine, might be blander than snow but fine. But salt?! Why does no one else carry salt?!”

 

It’s not even that!?” Zenitsu screeched back. “You just know how to cook! Even when there is no salt it still tastes better! Even Onigiri!” 

 

“It’s not that hard to not burn rice or turn it to mush.” Tanjiro whined. “It’s a basic life skill! Same for cooking fish and vegetables! It takes more skill to mess up a soup than it does to make one! I learned when I was six!”

 

Senjuro smirked towards his brother who immediately glared at him. “Aniue is the exception, no matter what, he always burns everything. Do not let him cook, we have all tried to teach him, the only good thing he can make is tea.” 

 

The horrified look Tanjiro shot him had everyone else at the table cackling aside from Giyuu who smirked and in the presence of other people that was as good as. “Kyoujuro-san, please tell me he’s exaggerating.”

 

A blush covered Kyojuro’s face from both his brother shaming him about his inability to cook and Tanjiro using his given name. “Unfortunately not, my boy. Mother tried, Giyuu has tried, Sen has and a whole many other people. I just cannot cook.” 

 

“What do you do on patrol?” Tanjiro asked with a confused tilt of his head. 

 

“He eats a lot of burnt fish because he is unfairly good at catching things he can’t even cook right or spends way too much money in village market food stalls if there isn’t a wisteria house nearby.” Giyuu deadpanned. 

 

“Or you cook for me if we cross paths!” Kyo chirped back. “Or Tengen. But yes, a lot of burnt things.” 

 

“Not anymore! Now you have a Tanjiro!” Zenitsu said with a sly grin. He’d noticed ages ago but hadn’t paid any mind to it but no his ears weren’t playing tricks on him. Tanjiro’s heart beat in perfect sync with Tomioka-san’s and Rengoku-san’s and the song of them each blended so well together that he had a feeling hearing them without all three present would feel wrong now. 

 

“Stole my own tsuguko from me as well.” Giyuu teased dryly, shooting his lover a slight glare. 

 

Kyoujuro knew his feelings on being the Water Hashira, how he had been looking for someone to take over for him, Tanjiro was to be that but no longer. He was never going to be that, his Tanjiro had broken him from his grief on all aspects and Giyuu knew he deserved this spot. 

 

“You never officially claimed me as your tsuguko, Giyuu-san.” Tanjiro hummed as he ate, feeling a bit lightheaded from how strongly their scents wrapped around him with them this close. “Though I am always happy to learn from you. Learning about different styles has made using my Kagura much easier on my body.”

 

It was the calmest Kyoujuro’s scent had ever been around him since the train, allowing him to notice the citrus that bloomed like contentment alongside the cedar and cinnamon he was so familiar with. Giyuu smelled like rain, high mountain pines, and surprisingly water lilies. There was cedar there too but Tanjiro couldn’t tell if that was just from their scents mingling around him or if it was a usual part of Giyuu’s scent. He couldn’t remember clearly from before right now. 

 

Together the both of them reminded him of home, of making charcoal in the deep winter, comforting. 

 

“Sensei did well with your training, more time and you’ll get stronger, same with all of you.” Giyuu stated as he eyed all three. 

 

Truthfully, if this Tanjiro followed his Tanjiro’s training timeline then he would be Hashira status in a year or two. Beyond the fact that he would slay a Twelve, Tanjiro so far has been the only one to mix breathing styles together in the same strike. All three of them were monsters, or would be monsters. 

 

“Oh! Kyo, are you able to chop more wood tomorrow? I have enough for breakfast but with how much colder it is, we will need more.” Senjuro asked. “The wood pile had been stocked the other day, I just need smaller pieces.” 

 

“Of course Sen,” Kyo replied before taking a bite of the new dish. “TASTY!” 

 

A soft laugh escaped Tanjiro at that, fondness clear across his face. Kyo’s cheeks dusted pink for a moment but noted that like Giyuu, Tanjiro liked his odd vocal tick with food. It was the most relaxed and truly content he’d seen the young man since he fell asleep on his shoulder on the train, his eyes only drooping a bit further when Nezuko started messing with his longer hair. It was nice to see him looser, his smile softer and formality near nonexistent for him as Inosuke and Zenitsu’s bickering filled the air across the table. 

 

“Have you been working too hard again, Tanjiro?” Giyuu asked softly. 

 

“Mm no, just want to catch up is all. Kyo makes sure I don’t take it too far training. I finally convinced Senjuro-kun to let me help with chores now though so I still get to be busy on our rest days.” Tanjiro hummed. “I taught him how to make baskets out of bamboo and river grass like otou-san taught me and I’ve been making a small kiln out back so I could make them charcoal while I stay here. With all of us they go through it faster so I wanted to help.”

 

Giyuu blinked and looked over at his stunned Kyo at the address. First a respectable first name and now a shortened one? Oh, his Kyo must be flustered. “As long as you rest too, Tanjiro.” 

 

“Mhmm, I am! I never know what to do with all this free time.” Tanjiro chuckled as he finished off his food before Inosuke stole it, leaning tiredly against Giyuu who was smelling more and more of morning ice and home. He will allow himself a few stolen seconds, but Tanjiro had to remember that this Giyuu isn’t his Giyuu from his first life. Didn’t change the fact that he was still really comfortable to lean on though. 

 

This was a familiar sight to Giyuu, Tanjiro sleeping against his side on their breaks or even when they were able to meet on missions and shared quiet space with one another. It was his fondest memories of then. It only took a few minutes of calm breathing before Tanjiro’s weight rested fully against his shoulder but Giyuu knew it was coming. Tanjiro never liked to stop but Giyuu learned quickly that something about his scent made the younger man drowsy if he was both tired and relaxed enough. He’d abused it many times just to make him rest. 

 

“He did the same on the train mission.” Kyoujuro huffed fondly voice soft to keep from rousing Tanjiro. “I’ve caught him doing the same with the other two and Nezuko in the sitting room as well. Never could get a straight answer on if they pinned him in like that on purpose.”

 

“He sleeps better with others, small house, five siblings and they piled on him.” Giyuu explained.

 

“It didn't take us long to figure out Gapacho.” Inosuke managed to get out between bites. “He thinks too much and won’t sleep right when injured so we force him to.”

 

“Better than you trying to knock him out.” Zenitsu huffed with a roll of his eyes. “He takes care of us all the time it’s no big deal.”

 

“I will headbutt him hard enough one of these days to overpower that thick skull of his!” Inosuke shouted standing, pointing roughly in Zenitsu’s face. 

 

Zenitsu stood and slapped his hand away. “No way! And stop your yelling!”

 

Before Inosuke could make another retort Zenitsu was dragging him out their voices echoing down the hall. Senjuro just huffed fondly and began clearing away dishes with Nezuko’s help leaving Giyuu, Tanjiro and Kyoujuro alone. 

 

Giyuu’s smile turned soft and sad as he carded his fingers through Tanjiro’s hair, shifting enough to make sure he was resting comfortably. He too was feeling exhausted now after his long journey here, sparring and then their bathing fun. 

 

“It truly is a perfect picture,” kyo murmured to himself as he watched his lover and Tanjiro be soft. “And I hate to disturb it, but let's get him to bed.” 

 

“Yes and if all goes well my Kyo, he will soon join us.” Giyuu replied as he got to his feet, easily picking Tanjiro up without waking him, pressing a kiss to his crown.

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