⚠️ this chapter contained non-consensual sexual acts which may be disturbing for some readers, viewer discretion is advised ⚠️

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{Muzan POV}
"That boy is very polite honey" my wife said as we sat down together, it honestly took all my self control not to snatch Tanjiro from my daughter's room.

I hummed and ignored her. She was getting on my nerves today.

"I'll check on them" I said, walking away from the women. I came to my daughters room and heard shuffling coming from inside "I-I can't go outside in this!" I heard Tanjiro's muffled voice yell "come on! papa will be so surprised!"

I squinted my eyes and knocked on the door; instantly all noise came to a halt and my daughter opened the door quickly.

"Hey pa! Do you wanna see Tanjiro?" She asked, a bright smile plastered on her face. I sighed and stepped into the room "sure..."

My eyes instantly caught sight of Tanjiro. He wore one of my wife's old dresses, the material was a dark shade of green - similar to the scheme of his normal Haori; how my daughter pulled this off I'll never know.

{third person POV}
Tanjiro froze at the sight of Muzan's deep, wine-like eyes scanning his body, he backed up a little and fiddled with the hem of his dress; trembling more violently as the demon king stepped closer to him.

"I'll take him back to his room" the male spoke, directing his statement to his daughter as he grabbed Tanjiro's hand and began to drag him from the room.

"Ok! I'll see you tomorrow Mr Tanjiro!" The sweet little girl yelled just as Muzan firmly closed the door behind him.

"I-I'm sorry if I made you mad..." Tanjiro stuttered under the demon's tense silence; his fingernails started to grow and slice the skin around his wrists.

The boy hissed in pain and bit his tongue in hopes to not anger the demon Lord any further since he was completely venerable right now. Tanjiro still didn't know what Muzan wanted with him.

He was also confused as to why he hadn't been killed yet; Muzan had every chance he could to kill Tanjiro and he hadn't.

This only confused the demon slayer further.

The demon king unexpectedly chucked Tanjiro on the floor of his room and quickly secured his hands with the chains once again. The boy shuffled around a little in order to fix his skirt from showing too much skin.

Muzan started intently at Tanjiro with a sinister smile. It was a smile of overwhelming dominance, established over decades of fear and horror.

Tanjiro shivered as Muzan licked of the blood which had seeped onto his hands while gripping his wrist "you're blood is quite satisfactory Tanjiro Kamado"

The slayer shrunk back to the wall as Muzan crouched next to him; smirking as he trailed his flushed cheek with a clawed finger.

"You look so tempting when you're scared, it makes me want to torment you even more" Muzan commented gleefully, suddenly grabbing his face and pressing their lips together in a forced kiss.

Tanjiro gasped and clasped his mouth shut in retaliation; making sounds of discomfort as he struggled to breath. Muzan frowned into the kiss and gripped the slayers neck harshly, threatening to dig his nails into his flesh if he were to move.

"I suggest you cooperate Tanjiro" Muzan hissed, slowly stroking the soft flesh with his nails. Tanjiro froze at the sharp sensation grazing his skin; instantly pushing him into submission out of fear.

Muzan grinned at his silence, pushing their lips together again while still keeping his hand on Tanjiro's neck.

The demon slayer reluctantly followed along with the movements; squinting his eyes shut in order to will the situation away. Tanjiro's soft pink lips felt heavenly against Muzan's, he couldn't wait to taste everything.

Suddenly Tanjiro yelped as he felt a sharp prick on his lips; drawing a little blood.

Muzan smiled and pulled away from the kiss, using his thumb to rub of the blood and lick it off his hand.

Tanjiro pushed himself further against the wall as he watched in horror as Muzan's eyes glowed with satisfaction; their vibrant colour seemingly enhancing as he licked the crimson liquid.

Tanjiro felt repulsed.

Out of nowhere, the demon king, sliced the dress down the middle where his chest was. The movement was so quick, Tanjiro didn't even notice it happened before he felt the cold air hit his bare skin.

The boy flinched and squeezed his elbows together in order to move the material back around his chest; but obviously it was quite hard with chained hands.

Muzan shook his head disapprovingly and let a smirk wash over his sinister features, his sharp canines shown off in the dim lighting.

Tanjiro's face was completely red from embarrassment and suppressed rage; a dribble of blood trailed down his mouth as tears pooled his eyes.

Even in the harshest of situations, Tanjiro still managed to be very alluring.

Muzan connected his mouth with Tanjiro's chest and began to bite at his soft skin. Cries of pain threatened to leave his mouth as he chest was littered with deep, bleeding bite marks.

Every spout of blood was swiftly licked off him as Muzan continued to torment the boy by continuously making wounds and licking them afterwards.

Tanjiro squirmed in pain, a futile last attempt to nudge the Demon king off him.

The male frowned once more at the movement and aggressively sunk his nails into Tanjiro's thigh. The boy could no longer hold the pain and cried out rather loudly, instantly having a hand slapped around his mouth.

"That's the last straw" Muzan hissed angrily, ripping of part of the skirt and using it as a gag around his mouth.

Tears streamed down the boy's red raw face as his muffled cries were silenced by the tightly wrapped material.

'Please... someone'

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"I don't know where he took him!" Kyojuro screamed, grabbing Inosuke by the bottom of his mask and lifting him off the floor.

The two had been relentlessly screaming at each other for god knows how long now. Inosuke was furious that Tanjiro had been taken when with the flame pillar. He thought Tanjiro was going to be safe with him and couldn't imagine what he was going through right now.

"He might dead now for all we know!" Inosuke screamed back, using Tanjiro's special move and head butting the pillar so he released his hold.

It definitely hurt a lot. Inosuke didn't know how Tanjiro did that. He must've had a pretty thick skull.

Rengoku hissed in pain and rubbed his forehead, gritting his teeth at Inosuke's statement.

"G-Guys please stop fighting, we'll find him for sure" Zenitsu pleaded, even though he-himself felt as if he might explode from worry any second.

"Fine. If no one is going to look for him, I will" the bore head grunted, picking up his swords and storming out of the butterfly mansion and into the cold night.

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Just to clarify AGAIN. I do not support this ship or the acts which are described within this chapter. It is purely for the plot line.