𝓡𝓮𝓶𝓮𝓶𝓫𝓮𝓻 𝓜𝓮 [ ObaMitsu fanfic/ R-(M)] Kimetsu No Yaiba

Chapter 16 - Can't Change Me

Chapter Song - Childish Gambino - "Heartbeat"

❗️This chapter contains HEAVY sexual content❗️

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The apartment was dimly lit, the quiet broken only by the soft hum of distant tires splashing through the rain-slicked streets as Iguro and Mitsuri departed. Inside, Sanemi and Kanae lay entwined beneath the warmth of the quilt, the weight of the night pressing gently around them. Their bodies, bare against each other, moved in slow, intimate rhythm. Sanemi's rough hands grazed Kanae's back, and with each tender caress, his usual tension seemed to melt away.

Her chest pressed against his firm, muscular body, her breath warm and soft against his neck. Kanae's leg draped over his as he drew her closer, his thigh brushing sensually between her legs, the warmth of her skin igniting something in him. His hand found her breast, cupping it with a mix of gentleness and desire. His touch wandered lower, slow yet certain, until he reached her lower lips, his fingers teasing her with soft circles around her clit.

"And here I thought you'd stay mad all night," Sanemi teased, his voice a low growl as his fingers worked her more intently.

"Shut—aaahh," Kanae moaned as he pressed harder, his fingers circling faster, sending sparks through her.

Her whispered moans filled the space between them, a symphony of longing and pleasure that made Sanemi's pulse quicken. He kissed her deeply, his mouth trailing down to her neck, marking her skin with tender bites. His fingers entered inside her and moved with urgency, each stroke drawing out a surge of wetness onto his hand.

"Not yet... don't make me—" Kanae's breath hitched as she bit her lip, trying to hold back from cumming. Sanemi pulled his fingers away, smirking as he brought them to his lips, savoring the taste of her.

"You taste so damn good," he murmured, voice thick with hunger. He hovered above her, teasing her as he slipped his fingers into her mouth. Kanae met his gaze, her eyes heavy with desire, her tongue brushing against his fingers, inviting more.

Sanemi adored the way she gave herself to him so completely in moments like this, yet he also craved the fire that flickered in her when she challenged him. As she lay back, he moved lower, spreading her legs with a firm yet gentle touch. His mouth found her again, his tongue parting her lower lips as he licked and teased, each flick against her clit made her moans grow louder, more desperate.

Her fingers tangled in his hair, pulling tighter with every wave of pleasure that rolled through her. After a few moments, her body shuddered, and she released in a flood of ecstasy, her moans vibrating through him as she squirted, her thighs quivering beneath his touch.

Breathless, Kanae lay back, her chest rising and falling rapidly. "I wish you were this sweet earlier," she teased, her voice playful despite the exhaustion in her body.

The glint in her eyes stirred something darker in him, a flicker of the tension from before.

Sanemi lifted her up gently into a 'lotus position', the intimacy of the moment shadowed by an underlying tension. Kanae could feel the strength by the way he held her, but something felt off. The anger simmering beneath his skin was palpable, a frustration from earlier still burning in him. As he entered her, his movements were sharp, impatient, his pace quickly becoming fast and rough.

Kanae clung to him, trying to match his rhythm, but soon a slight pain interrupted her thoughts. "Sanemi... stop..." she whispered, her voice soft yet filled with concern.

But he was lost, too consumed by his emotions to notice. She pulled away, breathless and stunned. She sat before him, with slight fear in her eyes and heart racing as Sanemi catches his breath, finally realized what had happened. His eyes widened, guilt washing over him.

"Kanae, I'm—"

"No!" she cut him off, tears welling in her eyes as she quickly got off the bed and began to dress.

Sanemi moved toward her, his hand reaching out to touch her shoulder, but her reaction was swift—a sharp slap across his face. The sting of it shocked him, leaving him holding his cheek, speechless.The air between them thickened, his anger still present but muted by the weight of the moment.

His eyes, cold and filled with anger, startled Kanae.

"Don't-touch-me!" she spat, her gaze piercing through him with a mix of hurt and fury.

He flinched, anger rising despite the remorse that gnawed at him. "What the fuck was that?!"

Her eyes blazed with frustration as she met his words with her own. "All week, Sanemi! You've been in this mood ever since you got back from your parents' place, you won't even explain what happened to me. Every other day I find new bruises on your body and now, because of some stupid misunderstanding, you're mad at me for having girl talk with Mitsuri?" She tugged on her clothes, her voice trembling as she went on. "It wasn't about you! It was her first time having sex with him and I was just trying to hype her up. But no, your insecurities had to get in the way for no reason. Real nice, I'm sure they all think your dicks small now".

Sanemi clenched his fists, his jaw tight. "You always act like talking about my feelings will solve all problems," he muttered through gritted teeth, trying not to let his voice rise.

"I'm just trying to help you, Sanemi," she said, her tone softening but laced with a sadness that cut deep. "You don't have to carry all this anger alone. You don't have to keep shutting me out, I'm your girlfriend!"

"And how the fuck is your 'help' gonna do," he growled, sitting down, his frustration boiling over. "You think saying 'nice' things is going to make my problems better? You think its going to fix my family problems? You think you can 'fix me'? Fuck out of here. That's not how it works. Life isn't as easy as you want it to be. Kanae " He began to put on his boxers.

Her face faltered, the calm she always carried cracking at the edges. "I understand you more than you think," she began, her voice trembling with emotion. "But you—" She paused, the weight of her words heavy. "You keep pushing me away, and I can't keep reaching for you if you won't meet me halfway."

Sanemi scoffed, his eyes dark with anger. "Maybe I'm not the one who needs to change. Maybe you should stop pretending I ever will."

Kanae wiped her tears, standing taller as the last of her patience slipped away. "I love you, but I can't keep doing this," she said, her voice strained with the pain she was trying to hold back. "If you can't let me in, I can't be with you".

Without another word, she turned and left, the slam of the door echoing through the room. Sanemi sat in the dark, the weight of his own anger and regret pressing down on him. He wanted to call her back, to fix what he had broken, but the words wouldn't come. Instead, he remained in the stillness, the warmth of her absence a cold reminder of the space between them.