My Dear Ice Demon (Kimetsu no Yaiba ff)

The Day I Become A Demon

Shiro's POV

"W-wait Muzan!" he threw me on the bed and tied my hand

"I told you to stay here, I guess you are still stubborn after all these years, shiro" he rip my clothes and saw my wounds when I was stab he grabed my chin dogging his nails on my skin

"How disturbing those scars leaved by a demon slayer. Only I can leave scars on these skin" he said and traced my stomach with his nail causing it to bleed

"Please stop, Muzan..." I started to cry

"Why stop when I haven't started yet" he said and kissed me. He dig his fingernails with me injecting blood causing for me to feel pain all over my body

"Ahhhh..."

"Are you feeling pain, snow flake?" I just nod at him

"is it very painful?" I nod twice as I can't speak because of the pain

"How are you going to hanfle me if you think this is very painful?" he said something tear on my abdomen

"Ahhhhh!!!" I can feel liquid coming out from my core, he took it, my pureness. He took my virginity

"I-it hurts Muzan" I said and he moved and I can feel more pain to mu abdomen

"I-Im sorry, I won't do it again" he moved fast even I am in pain

"M-Muzan, S-stop! It hurts! MUZAN!" It hurts so much that I feel numb I can't feel my legs, he is moving so fast

After few moments I started to feel less pain and it is like a tickle on my abdomen

"M-Muzan..." I can't help , but to moan out his name, I am moaning crazily as I can't think of anything, I wrap my arms on his neck and pull him closer to me. I am out of my mind to kiss him. He thrust into me hard and fast and I can on feel the pleasure he is giving me. He thrust become sloppy and I can feel something building up. He released inside me as I also released, I keep panting, but this demon looks like he is not even tired

"feeling tired, my dear?" I can't even move to respond to him

"well we are not yet done, my dear" he flip me to my stomach making me face our full length mirror in our room, I can see how mess up I am

He went inside me and thrust hard and fast. I can see myself being fuck by this demon from behind, he grabed my pulled my hair

"M-Muzan... I'm c-close" I shakily said and he even thrust in inhuman speed. I feel the pleasure building up and I can't help to moan. I realesd first and he still thrusting in me

He relesed inside me and let me fall over the bed while panting

"You should be thankful for not giving you a real punishment, but a pleasure. You are a true woman Shiro" I past out after that

I woke up after everything. Muzan just hugged my waist so I can't move, my whole body is aching. It hurts that maybe I can't move, I can't help, but to remeber the day I become a demon

*flashback*

I was on my way home because the crow said that a demon is getting close to our home, it is also night, I jump tree by tree, to get home faster. I can see the lights from the house, I think I'm not yet late.

I opened the door and witness how this man slaughteres my family, nezuko was on the door holding our youngest brother

"Aneki..." nezuki fell on me I can't do anything, but to fall in my knees holding her,she is still warm, shebis niy getting colder she is still alive, I look at him, Muzan