CHAPTER 12: [R-18] THE FORBIDDEN HEAT

Time stretched like torture.

Hikari was still pressed against me, my arm locked around her frail body, my hand covering her mouth. Our skin burned against each other, soaked with sweat and droplets. Every tiny movement turned into an obscene caress.

Her breath, short, ragged, ricocheted off my palm. Each exhalation was a wet fire that burned my fingers. Her round breasts crushed against my chest, her hard nipples scratched my skin with every beat of her heart. And lower... fuck, lower, it was worse.

My swollen sex pulsed against her stomach, throbbing like a second heart. And suddenly I felt something else, a hot, wet liquid, sliding against my shaft. I froze, suffocating.

She felt it too. Her body suddenly stiffened, her thighs clenching, and her eyes widened in horror.

She was dripping.

A strangled moan escaped against my hand. Her cheeks burned, her eyes avoided mine, but her pelvis, despite herself, pressed a little tighter against mine. The wetness spread, spread, a mixture of shame and desire.

— "Nii-san..." Her voice vibrated, muffled beneath my fingers. "Th...this...this isn’t normal..."

My stomach twisted. My mind screamed to stop, to let her go, but my mouth uttered something else, broken, trembling:

— "N-never mind... it’s not a big deal..."

It’s not a big deal? Fuck, what bullshit. My body was on fire, pressed against my little sister’s, and I had just confessed the unspeakable: that I had no intention of pushing her away.

She immediately looked away, her cheeks flushed, but her fingers tightened, as if refusing to move away. Her breaths rose a notch, quick, panting, each vibration of her throat resonating against my palm.

Miyu splashed in the water, splashing her hands over her enormous breasts, then emerged from the lake with a sigh. Her hips swayed with each step, her dripping thighs glistened in the moonlight, and the water trickled down her bare pussy to her calves. She stretched like a sated cat, her raised arms making her breasts spring into the night. Then, without hurrying, she picked up her kimono, put it halfway on, and walked back to the camp, her feet leaving wet tracks in the grass.

Silence fell again.

Hikari and I remained huddled behind the tree, trembling, burning, as if our sister’s departure had ripped a lock. My hand finally left her mouth, and her gasps spilled into the cold air. Her cheeks were streaming with sweat, her soaked hair clung to her skin, and her body pressed against mine continued to throb with unbearable heat.

I almost stepped back, almost let go. But she didn’t move. Her fingers still clutched my sodden kimono, as if afraid I would disappear if she let go.

"H-Hikari..." My voice trembled. "We have to... stop..."

She finally looked up. Red. Wet. Burning. And with a gasp, she replied:

"...Then...why are you shaking so much, Nii-san?"

Fuck. Her words nailed me. I wanted to reply, but nothing came out. My heart was pounding so hard it drowned out my thoughts. She, on the contrary, was moving. Slowly. Like prey turned predator.

She raised herself an inch, her parted lips brushing mine. A simple touch, hesitant, clumsy. My breath caught.

Then she dared.

Her lips touched mine, timid, trembling. A first stolen kiss, fragile, almost childish. But immediately, the restraint broke. Our breaths mingled in a panting sigh. She pressed a little harder, her nose brushing mine, her mouth opening reflexively.

A soft, muffled moan rolled from her throat. I responded without thinking, my lips capturing hers. The kiss escalated, deeper, more eager, clumsy but burning. Our tongues hesitated before brushing against each other, trembling, like two virgins discovering forbidden territory.

Hikari moaned again, her hands slid down my back, clinging to me with desperate strength, as if afraid I’d reject her right then. Her bare breast pressed harder against my torso, her hard tips digging into my skin. And lower down... the burning heat of her dripping belly spread over my stiff cock, almost engulfing it in her wetness.

I gasped. It was her. This wasn’t an illusion, not a feverish dream: her body, pressed against mine, trembling, dripping. The wetness slid down my shaft, each drop leaving a burning trail on my skin.

"Aaah... Nii-san..." she gasped, her misty eyes fixed on mine. "I... I... I’m hot..."

Her pelvis pressed a little harder, as if by reflex, and my cock slid against her glistening pussy, separated from me only by the thin friction of bare skin.

I wanted to stop. Fuck, I should have. But her lips, her taste, her trembling voice in my mouth... everything was crushing me. And I let her kiss me, again, again, until I lost all control.

The kiss escalated. Our lips clashed rhythmlessly, our tongues trembled, tangled awkwardly. Hikari moaned with every movement, a soft, broken sound that ripped through my gut. My hands, feverish, slid over her hips, her slim waist, down to her damp back. She let herself tip over, and with a breath, I laid her down on the cold moss.

Her soaked hair fanned out around her flushed face, sticking to her cheeks. She stared at me, her eyes misty, her lips parted, panting. I was trembling, unable to stop, unable to believe what I was about to do.

— "Are you... sure... about yourself?" My voice broke.

She swallowed, her fingers tightening on my shoulders, her bare breasts rising and falling with the frantic rhythm of her breathing.

"Yes..." she breathed, her cheeks flushed. "I’m ready... I want it to be you."

Fuck. Those words were enough to destroy me.

I guided my cock against her glistening pussy. The moist heat swallowed me instantly, a sticky friction that made me gasp. She moaned, her thighs barely parting, stiff with nerves. I pushed gently, the tip spreading against her tight vagina. Her body tensed suddenly, a strangled cry ripped from her throat.

"Aaah...!" Her teeth sank into my shoulder, muffling her moan.

I froze, my heart pounding.

"Sorry... fuck, sorry, I’m hurting you..."

She shook her head, her eyes misty, her lips trembling.

"N-no... keep going... I want... I want..."

I pushed again, inch by inch. Her burning sex clamped down on me like a silken prison. She bit harder, her muffled moans vibrating in my flesh.

"Hhhhnnn... aaahh... it... it hurts... but..." She looked up, her eyes swimming with tears. "But don’t stop... please..."

I gritted my teeth, each movement making me tremble with shame and pleasure. My pelvis moved forward, slowly, clumsily, and I finally sank into her. Her body arched abruptly, her nails raking my back.

— "Aaaahhh... Nii-san... I... I’m breaking..."

Her trembling voice, her broken moans, her bites on my shoulder... everything was tearing me apart. I wanted to protect her, not make her cry. And yet, her body glistening in the moonlight, her thighs clamped around my hips, told me she wanted it as much as I did.

I gasped against her ear, my mouth seeking her lips to stifle her cries.

— "Fuck... Hikari... you... it feels so good..."

She moaned into my mouth, her trembling tongue seeking mine, each sound she let out sounding like a prayer.

At first, every thrust seemed to tear her apart. Her muffled moans still vibrated in my shoulder, her thighs tightened around my hips as if to push me away. But little by little, her body changed. I felt it.

Her muscles stopped pushing me away, her back arching in spite of herself. The burning heat that had been choking me became more fluid, more welcoming, until it trickled down my shaft with every movement. I gasped, my nerves on edge, unable to comprehend how something so tight could engulf me like this.

Hikari, flushed scarlet, opened her mouth, her misty eyes fixed on me.

— "Aaah... I... feel you..." Her voice broke into a high-pitched cry. "It’s too... too big..."

I gritted my teeth, my breath coming out in gasps, unable to hold back my hips.

— "Hikari... fuck... you’re so good..."

I pushed deeper into her, my thrusts clumsy but desperate, and her body responded. Her nails scratched my skin, tracing red furrows down my back. Her legs finally wrapped around me, pulling on my lower back to push me deeper.

— "Aaahhhnnn... Nii-san... don’t stop..."

Her stomach tightened, her heavy breasts crushed against my chest, the hard tips rubbing my skin with each movement. The foam beneath us squished, damp, but her sex flowed even more, spraying my shaft with hot nectar. I slid without restraint, my balls slapping against her moist buttocks, and each shock made her scream louder.

— "Hhhhaaah... I... I’m cracking... I can’t anymore..."

I lowered my head, my lips capturing hers to muffle her cries. She kissed me like a drowning woman, her trembling tongue seeking mine, and suddenly, her body tensed.

Her thighs clamped down roughly around my hips. Her back arched like a bow, her breasts springing against me, and a high-pitched, strangled, heart-rending cry escaped her.

"Aaaaaahhhhnnn...!"

I felt her come. Her sex contracted violently around my cock, crushing me in liquid heat. Waves of pleasure shook her stomach, her body convulsing against mine, her tears rolling down her burning cheeks.

— "Aaahhh... Nii-san... I... I can’t take it anymore... it’s... too much..."

I gasped into her neck, each jolt of her walls tearing a moan from me.

Her orgasm was breaking her. She cried out again, her pelvis hitting mine uncontrollably, dripping wet, her thighs streaming with moisture. Her hands trembled, gripping my hair, pulling me against her panting mouth.

She had just erupted for the first time. And yet, her body continued to demand me.

I thought she was going to collapse, that this first orgasm had broken her for good. Her body was still shaking, her eyes misty, her mouth half-open letting out a broken breath. But her thighs remained tight around my waist, her burning belly still sucking on my cock as if refusing to let me out.

So I continued.

My hips began to slam against hers, hesitant at first, then more forceful, harder. The sound of our bodies mingled with the muffled gasps, the wet splash of her dripping pussy. The foam beneath us was nothing more than a soaked puddle, crushed by our movements.

— "Aaahh... Nii-san...!" She moaned, her arms clasped around the back of my neck, her nails digging into my skin. "It’s... so good... I can’t take it anymore..."

I groaned, unable to speak, each contraction of her sex twisting my spine.

She raised her face to me, her eyes wet with tears but bright with fever. Her lips captured mine in a hungry, chaotic kiss, constantly interrupted by her broken moans. Her pelvis undulated in spite of herself, seeking each thrust, squeezing me until I choked.

— "Hhhhnnn... aahhh... yes... more... more..."

Her breasts spurted against my chest with each impact, their stiff tips scratching my skin. My hands gripped her hips, crushing them against me, forcing me deeper and deeper. She screamed, her head thrown back, her soaked hair plastered to her scarlet cheeks.

— "Aaahhh... Nii-san... I... I can’t take it anymore...!"

But she continued to squeeze me, her legs locked around my hips, forcing me inside her. Her whole body vibrated, dripping, each spasm splashing my shaft with hot nectar. I felt her tense up, her throat letting out a strangled cry.

— "Aaaaahhhhnnnn...!"

She came again, harder, her thighs closing around me like a trap. Her stomach contracted in waves, her throbbing sex engulfing me even more, drawing a bestial moan from me. She gasped, her body shaking, unable to stop.

— "Aaahhh... I-I... I’m dying... Nii-san... it’s too... so good..."

I fucked harder, carried away by her pleasure, by her cries. My cock pounded deep inside her, splashed with wetness, and each thrust made her entire body tremble. Her tears streamed down her red cheeks, but her lips still begged me.

— "More...!" she moaned, her voice cracking.

And I, unable to resist her, continued, again, again, until I saw her burst again, breathless, her broken moans turning into cries of pleasure.

Her body arched suddenly, tense as a bow. Her nails dug into my back, her thighs locked around my hips, and her sex erupted around me in a hot wave. She came unrestrained, her stomach contracting in uncontrollable spasms, each convulsion tearing a bestial moan from me.

— "Aaahhh... aaahhhhhnnnn...!"

Her broken moans echoed through the clearing, wild, indecent, a far cry from the soft voice I’d always known. Her face twisted with pleasure, her tears rolled down her flushed cheeks, and her entire body vibrated beneath me, soaked, dripping. I felt as if she were dissolving into my cock, swallowing me whole.

I couldn’t take it anymore. My body was screaming, on the verge of exploding. With a start, I pulled out of her, my cock spurting out of her dripping heat. Hikari half collapsed, panting, her heavy breasts heaving with ragged breaths. But her eyes, red and wet, remained fixed on mine.

She raised her hands. Without a word, still trembling, she grasped my hard cock, glistening with her juices. Her feverish gaze pinned me. Slowly, she opened her mouth, her trembling lips parting to swallow my still throbbing cock.

"Hhhhnnn..."

The muffled sound resonated against my shaft, and I spat immediately. A violent, hot discharge exploded deep in her throat. My fingers gripped her soaked hair, and I came deep inside.

She half-recoiled, my white streams overflowing from her lips, dripping onto her fingers. A thick stream ran down her chin, which she collected in her thin palms. Her cheeks were scarlet, her eyes flooded with tears.

Then, without the slightest hesitation, she swallowed. Slowly. Her lips curled into a tremulous, almost innocent smile, before she whispered in a hoarse, breathless voice:

"Even your cum... I want it, Nii-san..."

My heart froze.

Fuck. Hearing that from her mouth... usually so sweet... it was too much. Even I, still panting, stood there, breathless, unable to believe what I had just heard.

Hikari looked down. A haze crossed her gaze, as if she suddenly realized what she had just said. Her already red cheeks burned, and she turned her head away, ashamed, her still-sticky fingers trembling slightly. Yet, instead of hiding them, she raised them to her lips, licking them with a nervous, almost mechanical gesture, like a child biting her lip after doing something wrong.

She avoided my gaze, breathing quickly, her shoulders trembling. All traces of confidence had just disappeared.

I gasped. A cold shiver ran through me.

She... she had not only shocked me with her words, but also finished me off by becoming the timid, fragile Hikari again, incapable of taking responsibility. And me... I could no longer decide which of the two was destroying me more.