Demon Slayer AU

By: FunahoMisaki

(A/N: I own nothing and it was just a little blurb that hit me so I had to write it. Maybe a bit OOC.)

"Pardon me." Tamayo said as she entered the room the three boys were relaxing in almost as soon as the sun went down, the boar headed boy frowned slightly as he glanced at her and then looked away without really caring. Tanjiro was smiling as he stood up and moved to approach her, the metal band on his hand glinting in the light and the sight of it never failed to bring a more genuine smile to her face.

The blond haired boy in the orange robe who had protected them earlier from the boar headed one took one look at her and there were suddenly hearts floating around him and he had gone kind of noodle like.

"Tch. A pervert." Yushiro was right beside Tamayo like always and he was glaring death at the blond boy. After all while he didn't like that Tamayo and Tanjiro were mates he could admit that Tanjiro was a perfect gentleman and an attentive husband/mate for Tamayo. The last few days together had Yushiro's animosity towards the kind swordsman starting to fade away seeing how attentive and caring he was towards Tamayo and how he never forced Tamayo to do anything against her will or if she was reluctant then he never brought it up again.

Tanjiro was not a pervert and that made him much better than other males in Yuchiro's eyes, certainly better than this blond brat who had been begging a girl to marry him on the road earlier.

"Zenitsu." Tanjiro's voice was cold and stern and when everyone looked at him there was a cold smile on his face that sent shivers down everyone's spines.

"Kindly don't flirt with my wife." Tanjiro said his voice sounding light but there was a hidden threat in it as he stared at Zenitsu with his eyes glinting darkly.

"Your…your wife?" Zenitsu asked torn between shock and disbelief and being scared witless by the look in Tanjiro's eyes and tone in his voice.

"Let me check your injuries dear." Tamayo said having ignored the blond as she approached Tanjiro and immediately took off the top of Tanjiro's sleep yukata to check his ribs.

"Hm. I know the human doctor checked them over and it seems he did a good job wrapping them but…Yushiro-kun can you hand me the bruise cream?" Tamayo asked and her assistant immediately fetched it from their supplies and handed it to her.

"Thank you." Tamayo said and Yushiro had sparkles around his head, smiling happily at being thanked by Tamayo and thinking of how beautiful she looked even though he knew she was taken.

"Here. This should help reduce the bruising and swelling and may help you recover faster." Tamayo said and she gently lathered a generous amount onto his skin.

"Thank you." Tanjiro said smiling at her thankfully and she blushed slightly and averted her eyes.

"It's the least I could do." Tamayo said smiling and blushing a bit when Tanjiro leaned forward and gave her a gentle kiss on the cheek.

"Here. You can both do your own right?" Yushiro asked glaring at the other two boys and shoving some of the cream into Inosuke and Zenitsu's hands.

"Thank you." Zenitsu said gratefully as he began to apply the cream to his two broken ribs.

"Heh. I don't need any medicin-"

"Lady Tamayo made this medicine using her own two hands and supplies and is gracious enough to let you use it. You will use it." Yushiro growled as he forcibly put some on the boar boy who growled back but honestly was too full and tired and confused about Tanjiro's reactions and all to care anymore tonight.

"Ah. Nezuko-chan? You're awake." Tamayo smiled when the younger demoness woke up and crawled out of her box, slowly growing from her tiny form into her natural size.

Nezuko chirped happily and immediately raced over to Tamayo and Tanjiro, giving a happy noise when she was immediately given head pats and rubs by the two.

"So…who's the other girl?" Zenitsu asked jealously and wondering if Tanjiro had two beautiful women all to himself.

"Oh this is my little sister Nezuko. Nezuko that's Zenitsu-san and Inosuke-san." Tanjiro said introducing his sister to the other two slayers who glanced at her and while Zenitsu went all noodle like again, Inosuke merely stared at her before turning over on his other side and ignoring them all as he fell asleep.

"We'll be staying here until the three of us recovered from our injuries. Sorry dear." Tanjiro said and Tamayo merely smiled at him.

"You deserve a rest love. Besides you did very well taking out the former Lower Moon, his blood you managed to gather will surely help us make a cure." Tamayo said and Tanjiro smiled brightly back at her as he put the top of his sleeping yukata back on before he wrapped his arms around her and laid down, pulling her down with him and into his side.

"T-Tanjiro." Tamayo said blushing in embarrassment and surprise while Tanjiro grinned at her and Yushiro seethed so hard he was nearly doing Flame breathing.

"What? I want to sleep with my wife in my arms tonight. As long as you're okay with it." Tanjiro said and his arms were loose around her so that she could easily slip out if she wanted to.

"I…I'm fine with it." Tamayo said and she was blushing a bit and wouldn't look at anyone as she moved closer into Tanjiro's arms.

"I love you." Tanjiro said honestly and he gave her a quick gentle kiss. She blushed brighter and smiled genuinely as she nuzzled into his chest.

"I love you too." Tamayo whispered as she tilted her head so that she could give him a slow loving kiss before Nezuko in her tiny form jumped on them which made them separate and laugh a bit.

"You're just like a baby Nezuko." Tanjiro said smiling at his sister as she curled between them in her tiny form and his heart warmed as he saw the soft loving look in Tamayo's eyes at those words as she moved enough to let Nezuko be comfortable and comfy.

"She is. I don't mind though." Tamayo said softly as she wrapped her arm around Nezuko and her heart warmed as the girl snuggled into her while clutching both her kimono and Tanjiro's yukata in her tiny hands.

Tanjiro smiled gently as he stared at them. Tamayo with her soft loving purple eyes as she stared at a tiny infant sized Nezuko who was curled between them. Nezuko who was as tiny as Rokuta had been and curling up in between him and Tamayo like Tanjiro remembered his siblings used to do with his parents when they were all young.

He couldn't help but think of a small dark haired purple eyed little girl in Tamayo's arms one day. Or maybe the child would have his hair and her eyes or her hair and his eyes? He liked that thought. Of one day having children with Tamayo.

If she wanted children one day then he would gladly help them become more than a dream and would keep them safe from anything and anyone. He'd fight anyone and everyone if he had to do so.

But if she wanted a future with him that involved children then he would fight anyone and kill Muzan with his own two hands if he had to in order to make that future come true.

For Tamayo's thoughts as she stared down at Nezuko she was remembering her own children from so long ago. The ones she had slaughtered due to her hunger when she first turned. She had…she had never thought she would find love again, she never thought she deserved love. Then she had found her mate in the young Demon Slayer who had a demon sister he'd do anything for and who had suffered so much at the hands of demons and yet felt compassion for them and empathy and didn't hate her and Yushiro for being demons.

She had found a Mate she didn't think she deserved or would ever find and he gave her unconditional love and acceptance and understanding. Of course she was doing her best to be a good mate, a good wife, in return. Tending to his wounds and supporting him and occasionally when they were able to she would cook something to make sure he had fresh food to eat and train with him to make sure he was getting stronger so that she didn't lose him.

He…never forced her into anything and never pushed her for anything at all. He was more than happy to do whatever she was comfortable with and stay at that level.

He gave her unconditional love with no strings attached and she didn't feel worthy of it but…

Staring down at the tiny infant sized Nezuko who had quickly fallen asleep in the hold of Tamayo and Tanjiro clutching at their clothes like a child would her parents…Tamayo looked up at his eyes and saw nothing but love and wonder and awe in them as he stared at the two of them and she blushed.

She wasn't worthy of such a look and yet he gave it to her without reservation.

She wasn't worthy of thinking about the future with Tanjiro, of thinking of a future where they could both go out into the sun or of thinking of her stomach swelling with his child. A child born from the two of them and possibly having her hair and his kind eyes or his hair and her own eyes and she hoped the child would have his smile and heart.

She wasn't worthy of thinking about such a thing…and yet she did.

She was thinking of the future, a future with her Mate and husband. A future that involved children eventually, children that she wouldn't slaughter because she was different now. She didn't need flesh or anything, just a bit of blood that her husband was happy to give her himself. She wouldn't hurt her children this time, he wouldn't let her even if her control somehow slipped and she reverted back to being the monster she used to be.

She was far from worthy of it…but she wanted it so badly.

She didn't care who she had to fight to make that future come true but she would fight anyone.

She…she wanted that future so much.

"Goodnight Tamayo. I love you so much." Tanjiro whispered quietly as Yushiro stood guard over everyone while they slept, Chachamaru curling up in his lap for pets for a while.

"Goodnight Tanjiro. I love you too. So very much." Tamayo whispered back with a soft smile and Tanjiro gave her one last bright loving smile before he drifted off to sleep with her following soon after.

Nezuko gave a happy purr between the two. She loved her big brother and big sister. She'd be happy to make sure that they could stay together and be happy. They both deserved it, happiness and love.

She'd protect her brother and sister and their future happiness no matter what.