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Muichiro is on his knees, naked, breathing heavily. His hair falls over his shoulders. In front of him, Kokushibo stands with his hand on his chin. Behind him, Muzan Kibutsuji, dressed in black, watches him with interest.
"What a precious thing…" Muzan murmurs, slowly approaching. "So pure. So perfect. And you've been hiding him from me, Michikatsu."
"It's none of your business" Kokushibo replies thickly. "I found him. I trained him. I desired him first."
"And yet... you don't possess him like I could" Muzan replies, sliding a finger to Muichiro's neck. "Look at him. See how he trembles for me."
Muichiro moans softly at the touch. His body reacts, betraying him. His cheeks flush.
Kokushibo grits his teeth, his fury suppressed. He takes a step toward him and grips him tightly by the waist, pulling him against his chest.
"Tell me, little one... do you want him to touch you? Or would you prefer make me to make you mine here, in front of his eyes?"
Muzan smiles.
"Do it. I want to see what you call 'yours' beg for me while you're using him".
Muichiro is trapped between the two most powerful demons, his breathing shaky. Muzan sits behind him, holding him like a puppet, kissing his neck with disturbing slowness. Kokushibo enters him from the front, thrusting hard.
"My child... so small..." Kokushibo growls. "So tight... you hold me as if you're afraid I'll leave. Don't worry. I won't."
Muzan laughs softly, sliding a hand down his chest.
"Do you really think that, Michikatsu? He's panting for me. His soul belongs to me, even though you're using his body."
Muichiro groans. He can't think straight. Every word envelops him, shatters him. His senses are overwhelmed: Kokushibo's length inside him, Muzan's breath behind him, the cold fingers touching, marking, controlling.
"It hurts…" he moans.
"That's good," Muzan murmurs in his ear. "If it doesn't hurt, it doesn't stick in your soul."
"Resist, little one" Kokushibo says, kissing his forehead. "You're already learning what it's like to belong to someone."
Kokushibo grips him tightly by the hips, increasing his pace. Each thrust collides with the pressure of Muzan's body, who grips his shoulders and prevents him from escaping. Muichiro cries, moans.
"My child… don't you dare cum for him" Kokushibo growls. "You can only cum for me."
"Do you still think you can control his body?" Muzan says. "He's mine. I knew it from the beginning."
Muzan leans forward and bites Muichiro's neck, marking him. Blood flows, and the boy's body shudders.
Kokushibo grunts. He squeezes him tighter and fills him mercilessly, marking him with every thrust.
"You're mine. Even if I have to break you to prove it."
"Then… break him" Muzan whispers with a cruel smile.
Muichiro stands between them after cumming, trembling, panting, his body covered in bites, marks, and fluids. His eyes are half-closed.
Kokushibo caresses his cheek.
"Choose. Tell me you love me. That I own you."
Muzan takes his chin, lifting it.
"Say you want me. That you'll never be able to escape from me."
Muichiro trembles… and doesn’t answer.
His lips open, but only a weak moan escapes. He can't choose. He doesn't know if he wants to escape... or stay trapped forever.
Kokushibo takes him again.
Muzan smiles.