Giyushino oneshot

Demon Giyu x demon slayer Shinobu

This is my first oneshot so please don't be mad if there's a few things that are wrong.

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In this au, Giyu is a demon and Shinobu is a slayer.

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It was a normal day with the hashira. Demon Giyu was in his house and Shinobu was in hers. ( Giyu is on good terms with the hashira ). Both of them were dating and all the hashira knew but they didn't know something about their relationship.

It was an extremely dirty one.

Shinobu's pov

I should visit Tomioka san more often. I mean his thrusts are quite nice when we do sex. I keep wanting to come for more but the next day my legs are sore as hell. You know what, that doesn't matter, I can just stay in Tomioka San's house! I said quietly in my room.

The problem is that the girls might find out.

3rd person's pov

It was a Wednesday in June in their universe. The days were starting to get hotter and hotter and Shinobu began to become thirstier and thirstier. She just wanted Giyu to be inside her, basically destroying her on the inside but she didn't care. She just wanted to feel him

And so she decided to do it.

Shinobu came into the room where Kanao and Aoi to notify the upcoming absence that's going to be there for the next week. Kanao immediately notices Shinobu's presence and turns around to ask her a question.

"Is there any reason that you are here right now Nee san?"

Hearing Kanao's question, Aoi also turned around to find Shinobu.

"Yeah is there anything you need Shinobu sama?" Aoi asked after she saw Shinobu.

"I have something to say." Shinobu said in her usual tone.

"What is it?" Both Aoi and Kanao said.

"I am going to visit my friend's house for the week and please take care of the mansion while I am gone."

Aoi nodded her head but Kanao asked another question.

"Why are you going there Nee san?"

"I just wanted to catch up with them that's all."

"Alright."

Shinobu left the mansion and she also informed the master for this and he allowed her.

Little did he know Shinobu's gonna do something dirty instead of what she said.

Giyu's pov

I was just relaxing but then I heard a doorbell. I went up to my door and saw Kocho there. Kocho doesn't come to my house for anything else other than sex and important stuff. I felt like it was sex so once I saw her I dragged her onto my room and used my blood demon art to make my room soundproof. Shinobu smirked and kept on babbling about how smart I was or something like that. But I didn't really care what she was saying. I just wanted to do it already. I felt like that was a must.

3rd person's pov

"Tomioka san." Shinobu said that made Giyu come back to reality.

"I want you to go all out on me." Shinobu said which made Giyu surprised.

"Are you sure Kocho? I might go a bit too hard on you."

"I am sure Tomioka san."

"Alright then."

Giyu took off his shirt along with his pants and boxers. He also took off Shinobu's haori, uniform and finally her undergarments. His fingers grew longer and he asked Shinobu a question.

"Top or bottom?"

"Bottom."

And so he went underneath her, first rubbing her clit. Shinobu covered her mouth but she knew it was no use. Giyu then used his long nails to dig deep into her vagina, kind of scratching it in the inside. Shinobu whimpered but didn't do anything. She will always allow Giyu to do whatever he wants with her body as if she was a slut.

Giyu could practically feel Shinobu getting wetter so he thrust even harder. He knew Shinobu was about to cum like she was a juice box. Despite being a demon, Giyu liked the taste of her cum. It was the first thing that he liked about Shinobu, the cum that she produced.

Shinobu started leaking and Giyu went to lick her up like an ice cream. His tongue was inside her clit and it was sucking on a certain spot that made Shinobu shiver. He sucked on her more and more before going out and letting Shinobu breathe. He then pushed his dick inside her and she screamed but still didn't do anything. His big dick with her small vagina wasn't that compatible.

"T-tom-mio-oka s-sa-an-n." She said visibally in pain and Giyu was listening.

"C-ca-an-n y-y-ou g-o a-b-bov-ve n-n-ow?"

Giyu listened and went above. Shinobu finally felt free of Giyu's grasp but she knew that she wasn't actually free.

Giyu first pinched and the played with her breasts like clay and then he went feasting on one breast, biting licking and practically devouring it. It even came to the point where her breast was bleeding and Shinobu gasped in pain at that but Giyu just licked the blood off and continued feasting on her.

A creamy white liquid came after a popping noise when Giyu stopped feasting on her.

"Looks like someone made a mess." Giyu smirked and Shinobu hid her face in embarrassment.

Giyu went on feasting on her other breast and gave it the same treatment. This entire process went on for hours and it only got worse when Giyu was sucking Shinobu's blood that made her weak.

Eventually Shinobu fell asleep due to exhaustion of what Giyu did to her and Giyu just played with her clit and breasts while she was asleep. The next day, Shinobu explained that she was gonna stay there ( Giyu's house ) for an entire week and that they can't have sex for the week because of Shinobu's sore body. Giyu pouted at that but still accepted it. Although he played with her body as if they were having sex, they never had it for the rest of the week.

Then later on Shinobu went back to the butterfly mansion where her sisters were waiting.