Yandere Simulator Life

[In the end, you succumbed to your dark impulse and slowly pulled down her pajama trouser, revealing her bare flesh. You gently parted her lips with your tongue, tasting her wetness and exploring every fold of her pussy. You lubricated her with your saliva, eager to make the experience more enjoyable for her. Despite your best efforts, she merely muffled a moan, offering no indication that she was awake or aware of your touch. Her eyes remained closed, but her breathing quickened, betraying her arousal.]

[You didn't believe that your sister was truly asleep, and this gave you more confidence in what you were doing. You continued to kiss and lick her, moving up to her petite breasts, sucking on her nipples until they became hard and sensitive. The sensation of her bare skin against yours was intoxicating, and you found yourself growing more daring with each passing moment.]

[You couldn't help but notice that your sister seemed to be enjoying the experience, and this emboldened you to continue. You didn't hold back, exploring every inch of her body with your mouth and hands. Seeing her sleepy face and being played with by you while she held back her moans and pretended to be asleep made your already hard, rock-like erection grow in length again, painfully brushing against your trousers. The guilty pleasure you felt as you sucked on her pink nipples was overwhelming, and you found yourself growing harder with each passing moment. Your erection strained against your trouser, aching to be released.]

[The taboo nature of your actions only added to the excitement, and you couldn't help but imagine the looks on your sister's faces if she opened her eyes and saw what you were doing. The thought was both terrifying and exhilarating, fueling your desire to continue. As you kissed and licked your sister's body, you found yourself becoming more and more aroused, your cock throbbing with need. You knew it was wrong, but you couldn't stop yourself.]

[With a sense of urgency, you began to undress, revealing your hard cock to the cool air. You stroked yourself slowly, trying to savor the moment, but your sister's naked form beside you was too tempting. You couldn't resist the urge to touch her, to feel her soft skin against your own. Your cock grew harder with each passing moment, but it was still not enough to satisfy your desires. Worst of all, your sister's tight, defenseless body lay before you, tempting you to take her virginity once again.]

[You know, deep down inside, that what you're doing is wrong, sinful, and a betrayal of Shiina's trust.]

[This is no longer your sister who is seducing you, but rather, it's you who took the initiative to cheat on Shiina, to cross that forbidden line. You wanted to relent, to retreat, to turn back and leave it all behind, but your cock seemed to have a mind of its own, propelling you forward into the forbidden depths of your sister's inviting hole.]

[You gasp in disbelief as your body betrays you, your mind reeling from the realization of what you're actually doing.]

[Her hymen, once untouched and sacred, is now broken and bleeding, the evidence of your transgression seeping out of her pussy. Even you, the one committing this act, wanted to relent, to stop, but it was too late. The momentum of your own lust had taken over, and you couldn't halt the descent into depravity. It was too late...]

[The guilt and pleasure mingled together in a twisted dance, as you continued to move your hips, plunging deeper into her nectar-filled depths. You were lost in your own world, your mind blank with the pain and pleasure of her tight, forbidden pussy wrapping around your cock with delicious discomfort. It was painfully tight, even for you, and yet you couldn't stop, driven by some primal urge to consume every last drop of her innocence.]

[And so, you took your sister's virginity once more, not knowing how many times you thrust into her tight, wet pussy. You filled her with your seed repeatedly, mechanically, until there was nothing left, and you collapsed onto her, your cock still buried deep within her glorious hole. You hugged her tightly from behind, your body entwined with hers, the evidence of your betrayal still dripping between your legs.]

[Unbeknownst to you, your sister stirred, her eyes opening as she gazed up at you. She didn't remove your cock from her pussy, instead, she stroked your hair softly, her voice a whisper in your ear as she kissed you in a chaste, sisterly embrace. And in that moment, as you both drifted off to sleep, the weight of your transgression hung heavy between you.]

[The guilt and shame you feel are unbearable, and you know that there's no going back from this moment of betrayal and sin.]

[As you woke from your slumber, the enticing aroma wafting from the kitchen teased your senses, pulling you from the haze of sleep.]

[The smell was rich and savory, a stark contrast to the usual silence of your mornings. You were immediately struck by a strange realization—your sister, frail and weakened by her congenital heart disease, had trouble even walking, let alone exerting herself to cook. The condition left her with a body more delicate than glass, and after you had taken her virginity, she had become even weaker than an ordinary person with a fragile constitution. This knowledge filled you with unease; if it wasn't your sister, then who was the one cooking in your kitchen?]

[Your mind raced with suspicion. Could it have been your sister? The thought was absurd; she could barely stand without risking her own health. Yet, as you looked around the bed, you noticed the red-stained sheets from the night before, the clothes strewn about in disarray. Despite the obvious signs of your earlier actions, your sister was nowhere to be found by your side.]

[The only option left was to pull on your clothes hastily and head to the kitchen, following the scent to uncover the mystery of who had taken over the household duties.]

[In your rush, it completely slipped your mind—the existence of Kamuro Masumi, a loyal dog that cultivated by your sister in a different timeline, someone who had been trained to serve both you and your sister without question. Masumi, in this reality as well, was the best at keeping secrets and obeying orders with absolute loyalty. She was like a shadow, never judging, only existing to fulfill her role.]

[When you finally reached the kitchen, you were met with a surprising sight—your sister, humming a cheerful tune as she stood by the stove, stirring a pot with an energy that seemed almost foreign to her. Gone was her usual cold and distant demeanor towards you; she didn't rush to embrace you, nor did she call you "Oni-chan" with that sweet, affectionate voice. That would have been too out of character for her reserved nature, even after everything that had transpired between the two of you.]

[The two of you settled into an almost surreal domestic routine, sharing a quiet breakfast together. The meal consisted of boiled chicken soup, prepared by Kamuro Masumi, who seemed to appear and disappear like a specter, leaving no trace of her presence beyond the spotless dishes and freshly cleaned linens.]

[Kamuro never once commented on the intimate relationship between you and your sister; instead, she facilitated it, cleaning the bloodied sheets without hesitation and leaving you both to your own little world, undisturbed by the outside reality.]

"Fufufu... Brother, are you ready to take responsibility?" Arisu Sakayanagi asked with a teasing smile, her voice dripping with a mix of sarcasm and flirtation.

She deftly sliced through the apple she held, the knife glinting menacingly as she finished her meal and washed it down with a glass of water.

With a calm, almost hypnotic precision, she peeled the apple's skin away bit by bit, the knife never wavering.

Seeing her play with the knife and apple, I shrugged nonchalantly, meeting her gaze without a hint of fear or hesitation.

"I already have a girlfriend," I replied casually, as if this conversation was nothing out of the ordinary.

"Break up with her," Arisu said coldly, her playful demeanor vanishing in an instant. The knife in her hand sliced cleanly through the apple, her movements growing more forceful.

"Don't tell me you plan on shirking your responsibility after everything we've done?"

"That's not what I mean," I answered, watching her with a steady gaze. "Let me handle things with my girlfriend first. She deserves to know what's going on. It's only fair."

I reached out and took a slice of the apple from her hand, one she had conveniently prepared, and popped it into my mouth without a second thought.

Arisu's expression shifted, her eyes narrowing slightly as she observed me. It was a strange look, a mix of curiosity and something darker, but she held her tongue for a moment.

"Fine," she said, her tone carrying an undercurrent of demand that brooked no argument. "But you will break up with her, brother."

"Unfortunately, that's not how it's going to work," I said, my voice turning cold. "If you hadn't pressured me like this, if you'd shown even a little softness, maybe I'd have felt guilty enough to end it on my own. But you, Arisu—you just keep pushing. You're becoming more aggressive, and I don't take kindly to being commanded or ordered around by anyone. Not even by you."

Her confident mask slipped for just a moment, and she set the knife and apple down on the table with a soft thud.

She lowered her head, her lilac long hair cascading down to hide her face as she whispered, "I'm sorry, brother..."

I sighed, the tension between us easing slightly, though the weight of our shared sins still lingered heavily in the air. I softened my tone, despite the bitter taste of regret that filled my mouth.

"It's my fault," I admitted quietly. "I couldn't control myself, and I crossed the line with you while you slept. If anyone should be mad, it's you. In the end, it was my selfish desires that hurt you, again."

"It's nothing, brother," Arisu murmured, lifting her head to meet my eyes. A soft smirk played at her lips, as though she was trying to dispel the dark cloud hanging over us. "I understand why you did it."

"You've always been like this," she continued with a sigh. "You want control, and you hate it when anyone challenges that. I get it. But what I don't like is the idea of sharing your heart with someone else. I'm sorry if I've been aggressive about it."

Without another word, she pushed herself up from her chair and moved to straddle my lap, her arms wrapping around my neck as she pulled herself close.

She laid her cane gently on the table, letting it rest there as she nestled against me, her breath warm on my skin.

"Regardless of your choice," she whispered, her voice laced with a sweetness that felt almost poisonous, "I will accept it. Whatever decision you make, I'll support you."

But I knew better.

Those were just words—pretty, soothing lies meant to placate me. I'd never forget the time when, in a previous world line, I'd tried to reach out to Shiina.

The aftermath had been horrifying. Arisu didn't resort to overt violence like the yandere heroines from stories; instead, she employed a much more chilling tactic.

She'd harmed herself, inflicted wounds upon her own body, and even attempted suicide, all to manipulate me emotionally and keep me tethered to her.

She didn't need to kill or maim to control me—what she did was far more insidious. As long as she sensed me slipping away, her reaction was more terrifying than any mere act of murder.

She might forgive my past indiscretions, the mistakes I made with Shiina, but now that I was committed to her, everything had changed.

We were no longer just brother and sister. We were lovers. And in this new dynamic, she would never tolerate me splitting my affection for other women.

As long as I stayed devoted to her and kept my focus solely on her, she would remain silent. But if I dared stray, even slightly, her wrath would be endless.

Still, she knew exactly what I wanted to hear, even if it was a lie meant to soothe my guilt and ease the tension between us. I didn't call her out on it, though.

Instead, I leaned forward, pressing my lips against hers in a deep, passionate kiss, letting the intensity of it convey the words I couldn't bring myself to say aloud.