(This was requested by enjoy!)

~Y/n pov~

"You were caught!" He yelled as he slammed me into the wall, I didn't flinch or wince at the pressure he was adding into his hand at my throat.

"I escaped, Muzan~"

"Don't you dare say my name. I don't know how you managed to say it without dying, but I'll find out soon."

"So why don't you kill me yourself?~"

"Because you're too valuable to me. . . You're powerful. . . Almost too powerful like me."

"Awh, Muzan~ You're so sweet~"

I brushed his cheek with my back of my fingers and smiled at him.

"I understand that I'm powerful with people's minds. . . But not physically like you." I sighed as I let my hand drop.

Muzan was cruel, but not as cruel as I was.

"Is there anything you want me to do, Muzan?" I asked, his thumb grazed my lips as he stared into my eyes.

"I guess you could do one thing." He held my shoulder and lowered me down to my knees.

I already knew what I had to do. I gently palmed his growing erection as I looked up at him. He pressed his index finger into my mouth, I opened my lips and let him fondle my tongue and saliva.

I groped his area before unzipping his pants. I kissed his hard member through his boxers, he let his hand pet my head. He held my hair and pulled out his cock, rubbing the tip against my lips. I stuck my tongue out and let him use my mouth like a toy.

He held my head with both of his hands, he thrusted his hips into my mouth, he tried to make me gag on his length, but it wasn't that easy for him. I was getting on his nerves when I giggled at him.

He shoved his entire cock inside of my mouth and quickly began to fuck me with his dick. Muzan was simple-minded to me. He thinks he's all powerful and the very first demon to ever live.

He thinks that using me as his own sex slave will subjugate me to his orders, what he doesn't know is the more men or demons use my body. The more I collect from them and grow with my abilities and strength. And women are just a bonus.

Especially if I'm getting loads from the ''Demon King'' himself.

He groaned as he shoved me down on his length and held me there. I released more aphrodisiac smells to trigger him more, it worked of course.

He pulled out and saw the string of saliva connecting from my lips to his cock. I licked the rest off of my mouth and giggled again.

"You look flustered~" I smirked.

"Why the hell do you look like me?!" He yelled.

I was shocked by the response, and confused. I stood and saw my hands, not my usual skin tone or shape, it looked like his hands. I glanced at a nearby mirror and saw myself.

I was him!

I had his red eyes and black hair, wearing his signature black suit. I laughed and I sounded just like him!

"Hot damn! I can shape-shift now! This is amazing!" I laughed.

"What the hell?!"

"Muzan~ don't panic, just think of it as an upgrade. I wonder what I could do?!" I squeaked.

I knew collecting semen would come in handy! I shifted into a wood nymph like girl, I had green eyes and brown skin with leaves on my arms and some on my calves.

"This is amazing!!!"

"How is this possible?!" Muzan growled.

"Oooh! I like this one~ I feel. . . Handsome~" I said as I shifted into another being.

"What about this?~" I chuckled.

"The hell do you think your doing?!" Muzan growled before grabbing my throat.

He held me there as I laughed.

"What Muzan? I can turn into anyone you want me to be! Who do you want me to look like? Nezuko? Daki? You?" I laughed.

My male voice sounded so seductive and low, yet nice and smooth.

"Turn back into yourself." He ordered.

"Fine fine- Oh fuck?!" I gasped as he pinned me to the floor, pressing my chest against the ground and biting my shoulder.

He moved my legs apart and instantly shoved his cock inside of me.

"AAGH!!~ M-MUZAN, WAIT-"

"This is what you get for disobeying me!'' he snarled.

"D-Disobey?!~ Agh! How did I disob- Ah- This isn't a punishment- Ah~ Ah~ this is a r-reward- Yes!~~" I moaned.

He locked my throat with his arm as he thrusted his cock into me. Every thrust he made, made me shift into different girls. From nature nymph's to a different species.

"M-Muzan!~ your growing inside of m-me!" I yelped. His cock throbbed inside of me as he got faster, his claws digging into my skin as he growled.

Hours passed by us as he kept fucking me senseless. Manhandling me like a ragdoll.

I pushed my hips into him as he bit down on my skin, I felt my walls clench around him. Feeling the pain add to the euphoria in my body, I got tired of this position; I rose up and flipped us over before getting into a reverse cowgirl position.

He was ready to cum already, but I needed more for my climax.

"Fuck!~" he snarled as he held my hips.

I rode him as I moaned, feeling his large cock inside of me was the best feeling right now. I completely ignored his words as I kept pleasuring myself.

I felt his cum fill me up, his groans and whines of pain were all I heard. He was sensitive now? How pathetic. I kept riding him as he clawed me, trying to make me stop. But he couldn't.

He was weak, I was draining him as I turned around to face him, his face pink with blush and tired from exhaustion.

"Do this feel nice?~" I whispered to him.

My stomach was curling into that tight feeling. This was it. I let my head fall back as I hit my climax and moaned out loud, our liquids mixing together as I kept riding him.

I fell onto his chest, both of us breathing hard and sweating. His ruby eyes almost closed as he panted.

I looked at him and leaned on my arms.

"Wanna know my secret, Muzan?~"

"What?"

I leaned into his ear and giggled before answering.

"

". . . What?!"

_________________________

Stay tuned and seeya soon guys gals and non binary pals 💜💙💖

More lemons are coming!!!