Shirai and Natsuko

Emerging from the classroom, Natsuko was dragged to the stairs.

Climbing down was more difficult than climbing up. Her weight shifted downwards, requiring effort from her arms, and she had to carefully descend.

She had to spread her legs as wide as possible, resembling a frog climbing downhill, her buttocks sticking up, her vulva completely exposed.

Natsuko barely endured the humiliation, following the beam of a flashlight as she climbed down.

The flashlight beam shone behind her, revealing Shirai shining it on her vulva, scrutinizing it closely.

He no longer cared about anything else; he would do as he pleased with the torture.

Natsuko began to despair, but this was exactly what the sadist desired.

A lewd grin spread across Shirai's face. His penis remained erect, and besides the flashlight, he held the large firework he had just inserted into her anus.

"Come this way,"

Shirai said, pulling Natsuko to the corridor connecting Building A and Building B as she struggled to climb the stairs. In reality, it was just a rooftop, essentially outdoors.

Seeing the moon in the sky, she didn't know what time it was, but she was certain it was late at night.

"Are you taking me there?"

"You're covered in poop, you must be uncomfortable..."

Shirai looked at Natsuko's filthy body with amusement.

There was a large fountain in the courtyard, and Shirai wanted Natsuko to wash herself there.

Still feeling repulsed by going outside naked, but having to wash herself, Natsuko had no choice but to crawl behind Shirai.

The fountain, which had been spraying water during the day, was now quiet, with various koi fish sleeping at the bottom.

"Go in, I'll help you wash yourself."

Shirai threw his handheld device and fireworks on the grass and entered the fountain first. The water was only knee-deep, and he wasn't worried about getting his white clothes wet. He splashed around like a child, his 20-centimeter erection beckoning to Natsuko.

Why am I doing such an obscene thing? Even though no one's around, going into the school's fountain naked... However, even if she refused, Shirai would forcefully pull on the dog leash to force her in, so Natsuko had no choice but to stand up and enter the fountain.

"Your skin is so beautiful..."

Shirai stared almost blankly at Natsuko standing before him, only his eyes gleaming, as if a mixture of sadism and masochism coexisted within him.

Natsuko dared not continue to look at Shirai's terrifying expression, unsure of what other horrific torture awaited her. She focused her attention on Shirai's mindset.

This humiliation of me, perhaps, is his revenge on women...

Just as he confessed, Shirai was trained into a masochist and a sex slave by his neighbor's widow, indulging in sadistic games every day, developing an abnormal sexual addiction. This, as Shirai said, is pleasure back-to-back with fear. Like a sexy challenge hidden in the abyss of life and death, it's a terrifying game.

The widow named Miyako, who taught this abnormal pleasure to a middle school student, is truly problematic. On the other hand, Shirai and his birth mother are indulging in illicit pleasure.

He grew up in abnormal sexual behavior from adolescence, trained as a masochist while simultaneously developing sadistic desires within himself. This perverse lust suddenly exploded, leading him to this act; therefore, it was revenge against humanity.

Natsuko had to accept this reasoning. Otherwise, she too would lose herself, sinking into this abnormal atmosphere. Natsuko finally discovered this poisonous sensuality, beckoning and tempting the lustful demon hidden within her.

Natsuko tried to use her last shred of reason to restrain herself, not to be seduced by Shirai and lose herself.

"You've been humiliated, yet you're still so beautiful and elegant. You're truly the ideal candidate. Miyako and my mother both said that a woman's beauty is only revealed through humiliation..." Shirai looked at Natsuko's face, scooped up water with his palm, and poured it on Natsuko's shoulders.

With a beautiful face, a well-proportioned figure, and flowing hair, Natsuko was indeed beautiful; in the darkness, her fair skin was even more striking.

Dirt clung to her arms and chest. Of course, it was also on her buttocks. Shirai fully enjoyed the touch of her smooth skin, continuously pouring water and washing with his hands.

"A woman's belly is so soft, it feels so good to touch."

Natsuko's abdomen had no excess fat, forming a sexy curve, very soft and attractive to touch.

Shirai's hand touched her slender waist, repeatedly stroking her full buttocks and lower abdomen along the curve.

As expected of the training he received from his mother and widow in his youth, his caressing movements were skillful, as if he could see her erogenous zones, a gentle caress.

"Ah...ah..."

Natsuko couldn't help but moan as he stroked her pubic hair against the grain.

Perhaps because half of her pubic hair had been plucked, she seemed more sensitive than before, and when his fingers rubbed her clitoris, she couldn't help but spread her legs apart.

Natsuko was unwilling, but the desire within her was ignited.

"Do you want me to play with your vulva again?"

Shirai seemed to see through Natsuko's thoughts, teasing her with words.

"Oh..."

"A woman's vulva can never be satisfied no matter how much it is played with." Shirai said, ...while plucking her pubic hair.

"Ouch..."

Natsuko cried out softly, spreading her legs apart like a child who wouldn't listen after being scolded, wriggling her hips wantonly, demanding more play.

However, Shirai's fingers didn't reach her. Leaving her pubic hair, they climbed onto her breasts, lifting and kneading them as if measuring their weight.

"Both the shape and the fullness are first-rate breasts."

He pinched her nipples, occasionally pulling them upwards.

"Ah...ah..."

Natsuko frowned, lifting her face, staring blankly at the night sky.

The school pond and her son's homeroom teacher...gazing at the twinkling stars...how immoral, yet so incredibly sensual...Natsuko's beautiful face, illuminated by the moonlight, appeared even more captivating. The veins on her neck were visible, the black dog collar adding a strange sensuality. Her mouth was slightly open, revealing pearly teeth, her pink tongue protruding as if searching for something.

Shirai gently caressed her beauty, his index finger slipping into Natsuko's mouth, licking with his tongue and gently biting with his teeth. Natsuko's anger vanished completely, replaced by an intense, sensual state.

"Now I'm going to wash your butt. Hold on there."

"Like this?"

"You need to spread your legs wider, otherwise it'll be hard to wash..."

Natsuko held onto the edge of the sink with both hands, spreading her legs as wide as possible. Her plump, peach-like buttocks were sticking out.

Shirai poured water onto her buttocks from behind, then caressed and washed her buttocks and inner thighs, also pouring water on her anus and stimulating it with his fingers to arouse her.

"Ah...ah..."

Natsuko arched her back and moaned as his fingers were inserted.

"I need to be especially careful here, let's clean inside too."

The effects of the enema hadn't completely worn off, and her sphincter was still relaxed, making it easy to insert his middle and index fingers.

"Ah...ah..."

Once the fingers were inserted to the base, Shirai forcefully widened her anus, creating space to insert another finger. He then scooped up water with his other hand, poured it in, and immediately stirred it with the two fingers inserted inside. When he stopped stirring, he used his fingers to scoop out the water.

"It's still slippery inside because of the enema fluid."

"Ah...ah..."

Natsuko felt a heat rising inside her anus, an unprecedented, insane pleasure. She also stimulated her vaginal opening. The friction against her vaginal folds caused a strong itching sensation in her uterus.

"Hahaha, bubbles are coming out..."

Shirai continued splashing water playfully, stirring with his fingers, gradually increasing the speed of his movements.

"Ugh... ah..."

Natsuko stood on her heels, straining her legs, shaking her hair, and desperately gripping the edge of the pool.

"Hahaha... it looks just like the crab from before..."

Indeed, white foam was bubbling from her anus.

"Ah... ah..."

Natsuko shook her hair wildly, emitting hoarse, lewd moans.

Her mind was blank; the comparison of her anus to a crab seemed to come from afar. She felt no shame, and unconsciously, she moved her hips in sync with the finger movements. The hoarse

moans grew more rapid, her back arching, and as her upper body spasmed, she finally reached her most sensual climax.

As Natsuko's body went limp and powerless, Shirai withdrew his fingers from her anus.

"You finally came, but this is just the beginning. I'll make you come many more times." Shirai splashed water on Natsuko's buttocks again.

Shirai, dressed in white, squatted in the pool, his face close to Natsuko's buttocks.

"Ah... what an intoxicating vulva."

Shirai looked at the slit, using his thumbs to separate the slit. Honey-like fluid overflowed from the opening, emitting a slight sexual odor, and also a gunpowder smell.

Shirai seemed to want to imprint this scene in his eyes, staring intently with wide eyes.

"Don't look like that, hurry up and play with it."

Natsuko finally wiggled her buttocks to urge him.

But Shirai, who wanted to enjoy sadistic games, didn't like Natsuko's urging... He would be happier if she acted more shy, or screamed in fright.

"What did you just say to me?"

Shirai's face changed drastically, his right cheek twitched, and his previously swollen penis instantly shrank. Natsuko, with her back to Shirai, couldn't possibly know that her penis or Shirai's expression had changed.

"Hurry up...don't drive me crazy...hurry up..."

"Really? So everything before this counts as consensual sex?" "It's come to this, what's the difference between consensual sex and rape?"

Natsuko didn't notice that Shirai's tone had returned to normal. Natsuko had completely turned into a bitch, constantly wriggling her buttocks.

"You don't distinguish between consensual sex and rape anymore?"

"Yes! That kind of thing doesn't matter anymore, my body is itchy...I'm going crazy." "I see, you're not enough..."

Natsuko said, revealing a smug smile.

"...Again...do you want me to say something embarrassing?" Although Natsuko hesitated, she herself wanted to say lewd words to make herself more excited, her vagina already twitching with excitement.

"Yes! Let's start from here. Because this is more effective, now you have to say...please lick my vulva..." Shirai started his operation with a new method.

"Ah... I'll tell you. I'll tell you... you have to do it..."

Natsuko said, wiggling her buttocks in embarrassment.

"Please lick my... Natsuko's vulva."

"Hehe... very good, I'll lick it for you..."

Shirai said with satisfaction, then gave her vulva a light kiss, like a Western greeting.

"Ah... no..."

Natsuko wiggled her buttocks from side to side in dissatisfaction.

"Hey... if you can say that now, I'll lick... Natsuko's vulva is better than Miyako's or Mom's, so please lick it hard and love it to your heart's content." Shirai's tone became abnormal again, and at the same time, his shrunken penis began to swell and regain its hardness. "How can you... compare it to Miyako's or Mom's..."

"You won't say it?"

"I'll say it, but if I say it, you have to make me do it."

"Quick... say it quickly..."

"Natsuko's vulva... is better than Miyako's... Mom's... vulva, right... so please lick it hard and love it to your heart's content..."

After hearing Natsuko's words, Shirai excitedly licked her vulva, sucking her labia into his mouth and sticking out his tongue to lick the wet crevice.

"Ah... okay..."

Natsuko groaned, supporting her body on her toes, tightening her thigh muscles, and making her calves even harder.

As the tongue entered her vagina, Natsuko frantically twisted her hips. Shirai's tongue was longer than average; both her mother and Miyako knew his tongue technique was top-notch.

The vaginal walls felt like they were covered in sand as she entered, indicating it was a very good organ.

She made lewd, squelching sounds, sucking the overflowing nectar.

"Spread your legs wider, lift your buttocks higher."

To allow the tongue to penetrate as deeply as possible, he rearranged her position. He took off his glasses and placed them on the edge of the sink.

"Ah...ah..."

Natsuko arched her back, and as she spread her thighs, he roughly inserted his thumb and forefinger to pry open her vagina, then inserted his tongue.

He enjoyed the soft touch of the mucous membrane with his tongue, twisting the tip of his tongue deep inside her vagina.

"Good...this is the first time I've felt this good..."

Natsuko trembled all over, feeling something she had never experienced before. When he forcefully inserted his tongue, he reached the cervix, licking it with the tip of his tongue. Natsuko felt her mind go blank.

"Ah...ah...good...good..."

She squeezed out a moan from her throat, expressing her pleasure.

"Now I'm going to do something even better for you. You... use your fingers to spread your vulva like this." Shirai instructed Natsuko to use her hands to spread her labia majora to the left and right.

"Is this okay?"

Natsuko raised her buttocks and used her fingers to spread her labia, waiting.

"Very good. Spread them like this."

Shirai gripped his huge penis and stood up.

"Ah... ah..."

Natsuko anticipated the moment when the 20-centimeter-long penis would penetrate her from behind.

The two labia formed an oval arc, revealing pink, writhing mucous membranes. The urethral opening was also spread to the left and right, showing signs of contraction, indicating the level of Natsuko's excitement.

"It's coming!"

Natsuko didn't understand what Shirai meant at that moment.

"Ugh..."

Shirai let out a soft moan.

"Ah... ah..."

She thought he would insert his erect penis, but instead, Shirai sprayed urine onto her spread vulva, from a distance of less than 20 centimeters.

"Ah...ah...ah..."

Natsuko let out a sound of surprise and shame, but her fingers still pulled her vulva open. The stimulation from this abnormal behavior numbed her mind, making her unable to think.

After a long ejaculation, Shirai exerted force in his lower abdomen, increasing the water pressure and stimulating his vulva.

"It'll be sticky, let's wash it clean."

After Shirai finished urinating, he made Natsuko squat down so that her buttocks were immersed in the water.

Shirai put on his glasses and squatted down as well. Natsuko was still facing away from him.

Shirai reached into the water and began washing Natsuko's vulva, rubbing her labia with his fingers, seemingly enjoying the sensation. "How do you feel when I pee there?"

"This...you...you're always so unpredictable."

Natsuko answered, wriggling her hips, her tone slightly coquettish.

"Feels good, doesn't it?"

"Mmm..."

"You definitely will, it feels more and more comfortable, doesn't it?"

Shirai said, inserting two fingers into her vagina.

"Ah...I can't take it anymore..."

"What do you mean by 'can't take it anymore'?"

"I can't hold it in anymore..."

After being sprayed with urine, Natsuko felt aroused again, wishing a penis would immediately pound into her, her heart itching with desire.

"Do you want to pee?"

Shirai misunderstood, but it wasn't entirely wrong; Natsuko did feel the urge to urinate due to the coolness of the water.

"Yeah, so pull your finger out, I'm in the sink."

Before inserting his penis, she wanted to urinate first, so Natsuko didn't correct Shirai's misunderstanding.

"You can't urinate in the sink?"

Shirai suddenly yelled, standing up with his finger still inside her vagina, pulling his buttocks upwards.

"Ah...ah..."

Natsuko spread her legs, raising her buttocks high like a horse.

"I want to see how he urinates,"

Shirai yelled, pulling at her labia with his finger, revealing her vulva.

"Ah...so embarrassing..."

"Actually, you'll be happier if someone watches."

"This..."

"I want to see the moment it comes out of the hole, so hurry up and splash it on my face." Ah...he wants me to urinate on his face, how could he ask me to do something like this...? Natsuko felt incredulous, but for some reason, she felt excited.

Ah...so good. He can bring his face so close to my vulva.

At this moment, Shirai was waiting there for the moment the urine came out of his urethra.

I really want to do that, to pee on a man's face, I really want to do that... Let him see the urine coming out. Suddenly, her urethra swelled slightly, the original crack became a hole, and yellow urine gushed out.

"Ah... Ah..."

Warm urine sprayed onto Shirai's face. Because she was wearing glasses, she didn't need to close her eyes. Shirai watched the urine fly out with a smile.

"Ah... You saw it..."

Natsuko's excited voice was a little hoarse.

"After doing this, I can't hold back anymore."

"I can't either, the stimulation is too strong, my heart hurts... Hurry up and give it to me... Put it in from behind like this." Natsuko turned into a bitch, her mind filled with pink mist, her whole body surrounded by pleasure and sex, her vulva was melting hot, frantically pursuing the penis.

"Are you satisfied with my penis like this?"

"Yes... I want it... Hurry up and put it in."

Natsuko twisted her buttocks and demanded. Shirai took off his glasses and washed his face with the water from the sink.

"Women are all lustful after all..."

He put his glasses back on, positioned the glans against the entrance of her vagina, and gripped her buttocks tightly with both hands.

"Ah...ah..."

"Can I put it in now? Once it's in, it won't stop." "It's okay...hurry up..."

Shirai's lower body finally thrust forward. A 20-centimeter-long cannon slid into her wet, fleshy hole.

"Good...good..."

The long-awaited sensation made Natsuko scream in ecstasy.

The giant rod began to make long, deep thrusts. Not only was it long and thick, but the shaft also had a considerable degree of curvature, so it produced intense friction during thrusting.

After rubbing against the vaginal folds upon insertion, it was thrust all the way in at once, the cervix being flattened by the huge glans, and each thrust also stimulating the rectum.

"Ah..."

Completely different from her husband's penis, incomparable in length and girth, Natsuko looked up at the night sky, her back arching upwards.

As the huge rod entered, her full breasts swayed, and the curves of her abdomen rose and fell like waves.

"Ah... um..."

Shirai's whole body arched back, his penis thrusting upwards. Although he had ejaculated twice, such vigorous movements would probably not last ten minutes for an average man.

"Ah... ah..."

The penis reached his cervix, and Natsuko stood on her tiptoes, her beautiful buttocks sticking up. Perhaps due to her regular exercise, the curves of her long legs were reminiscent of European and American athletes.

Her brows furrowed, her beautiful cheeks contorted, her face flushed, and her tongue peeked out from her open mouth, a very seductive expression.

Ah... so good... being violated by a man I hate, why do I still feel such intense sensuality... good... thrust harder... fuck my vagina to pieces.

"Ah... it's going to break..."

Her labia wrapped around the penis, moving in and out of her vagina with each thrust. A squelching, lewd sound came from her vagina.

"Miyako likes to thrust hard, while Mom likes to writhe inside." Shirai's movements were indeed dynamic, their lower bodies pressed together, rotating in large circles at the same time.

"Ah... um..."

The glans pressed against the cervix as a fulcrum, then rotated. The fleshy opening surrounding the shaft felt as if it had been enlarged two or three times.

As the shaft rubbed against the granular opening, Natsuko's nerves went numb.

"I'm going to cum!"

Natsuko quickly reached orgasm.

"Hey... this feels good, doesn't it?"

Their genitals pressed tightly together began to rub, the circular motion stimulating the labia majora with Shirai's pubic hair.

"Ah... ah..."

With Natsuko's wanton moans, Shirai changed tactics, preparing to bring Natsuko to her peak of sensuality from behind.

"Um... um..."

When it reached the base, it would definitely hit the cervix. Natsuko was intoxicated by the pleasure, but remained composed, not ejaculating.

The squelching sounds of thrusting echoed in the school's courtyard, a testament to the powerful piston-like motion.

"Ugh...ugh...ugh..."

As the thrust reached her cervix, Natsuko let out a deep moan, her hair disheveled, her full breasts swaying incessantly.

"How does this feel?"

Shirai's right hand, which was gripping her buttocks, reached forward, found her clitoris, peeled back the foreskin to reveal the sensitive clitoris, and pressed down hard with the pad of his middle finger.

"Ah!...Ah..."

Her clitoris swelled with blood, reaching its limit. Shirai rubbed and rotated it with his fingers, while continuing his piston-like thrusts, the intense pounding almost lifting Natsuko's legs into the air.

"I'm coming..."

Natsuko roared at the night sky.

Receiving her second orgasm of the night, Natsuko was utterly exhausted in a sweet ecstasy.

"I told you, once I start, I won't stop."

Shirai pulled out his penis, but dragged Natsuko out of the pool and onto the grass.

"Ah...please...let me rest for a bit..."

Natsuko swayed as she squatted on the grass.

"Don't whine here!"

Shirai said, taking off his white clothes.

"I know, I'm the only one who came first, you haven't...I'll let you do it...I'll rest for a bit." "Let me do it." Shirai's face twitched.

"Yes...because it was too intense just now, without rest, my body won't be able to take it...I can do it...but let me rest first." Natsuko was careless, forgetting Shirai's purpose.

"Did I say...we'd enjoy this illicit game together? Did I say we'd have intimate sex?" "Ah..."

Natsuko hurriedly covered her mouth with her hand, thinking of those things like censorship, plucking pubic hair, fireworks, enemas, and defecating under her son's desk; fear gripped her heart.

"This is your punishment, not the same as normal sexual intercourse between men and women!" "Let me go... I'm sorry..."

Natsuko's face was pale, and she apologized desperately, but it was too late. Shirai's right hand grabbed Natsuko's hair.

"Ugh... Ugh..."

"It hurts..."

Ignoring Natsuko's screams, Shirai made groaning noises and pulled Natsuko's hair, swinging her around on the grass.

"I'm sorry... I'll agree to anything... Please forgive me..."

"Okay, don't forget that."

Shirai pulled Natsuko over and sat cross-legged on the grass.

His huge penis, still twenty centimeters long, stood erect, and he ordered Natsuko to ride on it, facing him.

"Until I say yes, you have to keep wiggling your ass."

"Like this... Is this okay?"

Natsuko adopted a face-to-face position with Shirai, placed her hands on Shirai's shoulders, and began to lower her body gradually.

"Yes, use this position to swallow my penis, and then wiggle your ass." Shirai gripped his huge penis, waiting for her wet vulva. When the moist mucous membrane touched the glans, it rubbed back and forth in the fleshy groove.

"Oh... ah..."

As the fleshy groove was rubbed, the labia were stimulated, and the clitoris was rubbed, Natsuko's body began to experience pleasure again.

"What rest... just doing this makes you keep moaning..." Shirai aligned the glans with the entrance of the fleshy opening, and Natsuko's buttocks continued to droop downwards, welcoming the penis into her.

Being led in by someone else and by herself felt different; the stimulation from different angles spread throughout her vagina. When it entered about twelve or fourteen centimeters, the penis began to rub against the vaginal walls.

Natsuko squeezed the vaginal walls tightly... at the same time swallowing the penis twenty centimeters in.

"Ah... ah..."

Due to the previous intense orgasm, Natsuko's sexual function was immediately aroused.

"Yes! Just like that, slowly and forcefully twist. You absolutely cannot stop or rest." Shirai hugged Natsuko's slender waist. He gently stroked her back with his palm and licked her ears and neck with his tongue.

"Ah...ah..."

Without Shirai's command, Natsuko's buttocks began to wiggle rhythmically, her desire driving her to swallow and spit out faster. This was exactly what Natsuko, now a submissive, wanted.

Shirai held Natsuko tightly, her soft breasts pressing against his shoulders.

"How much you feel, answer with your tongue."

As he spoke, he breathed into her ear, his tongue tracing from her earlobe to her cheek, before demanding a passionate kiss.

"Mmm...mmm..."

Natsuko responded with a sweet nasal sound as the man's tongue entered her mouth, actively entwining it with his own tongue to show that she felt the same sensuality.

Shirai held Natsuko's head with his left hand and stroked her back with his right, pouring copious amounts of saliva into her mouth.

"Wriggle your ass harder!"

After fully enjoying the kiss, Natsuko changed positions. Carefully preventing his penis from slipping out, she straightened her legs from a cross-legged position and lay supine on the grass.

"Is this okay?"

Knowing that the riding position was appropriate, Natsuko cooperated with the man's movements, mounting Shirai.

Her mouth opened, revealing a honey-like opening that pressed against Shirai's hairy crotch.

They remained pressed together, and she began to wiggle her hips. Her pubic hair and flattened labia rubbed against Shirai's thick pubic hair, feeling incredibly pleasurable.

Natsuko actively wiggled her hips, enjoying the sensation of genitals rubbing against each other.

"Ah...so good..."

Her opening was filled with a thick penis; slightly different hip movements brought different sensations. As her clitoris rubbed against the pubic hair, a current of pleasure surged through her back.

Shirai silently allowed Natsuko to move, admiring her sexy body.

Her eyes were slightly closed, her lips slightly parted, and the trembling of her body was enough to stimulate anyone's brain. Her body bent slightly forward, her breasts swaying, her long legs spread wide—she was undeniably sexy.

"Ah...ah..."

Natsuko wiggled her hips, her sensuality intensifying. To achieve a greater orgasm, her hips rose and fell incessantly, her labia tightly wrapped around the penis.

When supporting her body with her knees, the thrusting distance is greater, and when she lowers her buttocks, the cervix experiences the pleasure of the glans hitting it.

"Ah... um..."

Natsuko's moans become more and more rapid as she shakes her buttocks incessantly.

Her beautiful brows furrow, her hair flies everywhere, and her full breasts sway in front of her chest. At this moment, she absolutely cannot stop until she reaches the right point.

Shirai remains very composed in the face of this onslaught, carefully observing Natsuko's lewd appearance.

"I want you to twist your buttocks before I say yes, but you're reaching orgasm all by yourself like this." After saying this, Shirai hugs Natsuko's buttocks tightly from below, and then, in coordination with Natsuko's movements, thrusts his penis upwards forcefully. "Ah... ah..."

Natsuko's upper body arches back, letting out a scream.

Shirai not only moves his buttocks in coordination with Natsuko's movements, but also changes the position of the glans against the cervix and vaginal walls.

The thrusting distance is greater than before, and when the penis withdraws from the vaginal opening, it continues until the glans reaches the opening, and then it thrusts in all the way with all its might.

The erect penis rubbed against the vaginal walls, finally reaching the cervix, sending a surge of intense pleasure straight to her head.

"I'm going to...I'm going to cum..."

Natsuko roared every time.

Already overwhelmed by orgasm, she tried to lift her buttocks away from the penis, but Shirai held her buttocks tightly and continued thrusting.

"Ugh..."

Her mind went blank, but her uterus still felt intensely sensual, a powerful electric current coursing through her body—it was pure pleasure hell.

After twenty minutes of this, Natsuko finally rolled her eyes and passed out, her body limp as she collapsed onto Shirai.

"It won't stop just because you passed out,"

Shirai muttered to himself, changing to a normal position with the penis still inside her, then lifting her onto his shoulder and continuing to thrust, maintaining a steady rhythm.

Soon after, Natsuko awoke from her unconsciousness. She found herself still aroused, her lower body, her entire body, and even her brain completely numb.

Nearly an hour had passed since he began penetrating her from behind in the pool, and Natsuko had experienced countless orgasms. Even so, changing positions would trigger new sensations—an instinct an unchangeable part of a woman's body.

"Ah…please spare me…"

This man's stamina was truly remarkable; she wondered how that widow, Miyako, had trained him.

"Are you awake? I told you not to stop moving your hips until I said yes, and you actually passed out…" "Ah…please spare me…" "

No! This is just the beginning; I haven't ejaculated inside you yet." Shirai said, increasing the speed of his thrusts.

Her vagina was a wet, sticky swamp; even though she wanted Shirai to ejaculate quickly, her vagina was too weak to grip his penis.

"Ah...no..."

Natsuko shook her head desperately, but when Shirai began to thrust rhythmically again, her desire ignited instantly, and her whole body began to tremble.

Ah...it's amazing...what should I do...it's even more sensual than before...ah...

Natsuko bit her lip, trying not to make any lewd noises, feeling her uterus swell. With each thrust, pleasure traveled from her back to her brain.

Ah...my vagina feels so good...it feels like it's melting...

Natsuko was surprised by her own thoughts. When did I become a woman who says such things...? She thought to herself, but her excitement was even higher, and she wanted to shout these lewd words out loud.

Ah...Natsuko's vagina...my wet vagina...I want to scream out loud like this man's mother or Miyako. How pleasurable it would be to scream like that.

The thought of saying this made her heart almost explode.

"Ah...ah...uh..."

Natsuko desperately tried to suppress the desire.

"Uh...I want to cum too..."

Shirai lowered his legs from her shoulders. He held Natsuko's body tightly.

When she felt the oneness with the man she loved during intercourse, Natsuko could no longer restrain herself.

"Ah...not yet...wait a little longer...make my vagina rotten..." Natsuko said, clinging tightly to Shirai. Otherwise, the intense shame would overwhelm her.

"I'm going to fuck your vagina to a pulp."

Hearing Natsuko's lewd words, Shirai thrust even more violently.

"Ah...that's good...make my vagina feel even better..." Natsuko's body experienced an unprecedentedly powerful orgasm, all her orifices expanding and then contracting.

"Ugh, I'm coming!"

After saying his last words, Shirai thrust violently into Natsuko's vagina.

"Ah...good...my vagina is melting!"

The two, like a loving couple, embraced tightly, plunging into the sea of orgasm.

As Natsuko climaxed, Shirai also collapsed, limp and powerless, onto the woman's naked body.

Natsuko gently stroked Shirai's back.

Perhaps because she had spoken those lewd words so readily, her hatred for Shirai had vanished. She was willing to forget everything if he made another mistake. But she desperately wanted to know why he had chosen to humiliate her. Of course, this man's abnormality was influenced by his mother and Miyako, but why he chose Natsuko remained a mystery.

Had he planned this from the parent-teacher conference, developing feelings for her at first sight?

That must be it; there was no other reason.

Natsuko stared blankly at Shirai, hoping he would say one last thing… "Because I love you!" At that moment, Shirai walked over, then retrieved the cigarette that had been inserted into his anus and planted it vertically in the ground.

"There's something I must ask you."

"What is it?"

"What happened tonight… Why did you do this?"

Shirai silently lit the cigarette.

"Why did you choose me?"

"It's punishment."

"Why punishment...?"

Natsuko assumed it was a punishment for women; he had fallen in love with her upon seeing her, so he chose her as his object of affection—she was confident of that.

However, Shirai's answer surprised Natsuko.

"Your son forgot his science homework, so this is the punishment." Natsuko almost doubted she had heard correctly, stunned and speechless. At that moment, fireworks soared into the night sky, drawing two large halos of light, one a pale pink and the other a deep red.

[The End]

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Shirai and Natsuko

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