Chapter 4 – This is Special Training to Stay Perfect → “Violate me while I expose myself through the wall!”

Thanks to Yuji’s desperate…『training』 (?) efforts, Irina had mostly stopped clinging to him without regard for place or time. On the surface, she had returned to her former self: the noble, untouchable student council president.

As for that infamous day, it was whispered among students as『The Silver Fairy Queen’s Moment of Madness.』But naturally, no one had the courage to ask Irina directly what had really happened. And Yuji, for his part, had become strangely revered as the only boy acknowledged by Shirogane Irina. Combined with his naturally sharp gaze, this newfound reputation only made others keep their distance more than ever. No one dared to confront either of them about it.

In the end, the legend of Shirogane Irina grew even more dramatic and awe-inspiring, and within that tale, the name of Sado Yuji was forever etched.

…However, that didn’t mean Yuji had truly gained control over her. Shirogane Irina was not such a simple creature to tame.

“Yuji-kun! Today, I want you to witness just how much I’ve grown!”

One lunch break, after finishing their meal in the student council room, Irina and Yuji were enjoying a cup of tea. Suddenly, Irina stood up from her chair and held her right hand toward the sky, gazing at her fingertips with sparkling eyes as she made her declaration.

She had clearly come up with something outrageous again. The student assembly was scheduled for the afternoon—but what on earth was she planning to do?

“Um…『grown』? What do you mean by that? What should I be doing?”

“All you have to do is watch me, Yuji-kun. Watch me shine from the stage!”

“Alright… but you’re not going to do anything weird, right?”

“Ufufu. There’s no way I’d do anything strange. Aah, I just know you’ll be proud of me! Oh, and here—take this.”

Irina handed Yuji a small, round object that looked like a button with a tiny switch. Yuji tilted his head as he accepted it.

“What’s this button for?”

“That’s the button that lets you share your feelings with me, Yuji-kun. When I send a signal to your phone, check the screen and press it. At that moment, you’ll witness something truly… unforgettable. Aah… just imagining it makes my soul tremble!”

“R-right… I see. Got it. I’ll just… hold onto it for now.”

Her explanation was vague, but since Irina seemed so genuinely excited, Yuji decided not to press her further and accepted the button without question.

At that time, he had no idea what kind of madness was about to unfold.

***

The lunch break ended, and all the students gathered in the auditorium. The student assembly began. One topic after another was brought up and swiftly handled by the student council president Irina, who stood proudly on stage, chest out and head held high.

“Ahh… Irina-senpai really is cool when she’s like that…”

Lately, having gotten close to her, Yuji rarely had a chance to view her this way. But now, watching her confidently address the entire school from the stage, that old sense of admiration came rushing back. Yuji narrowed his eyes and gazed up at her in a daze, enchanted by the clarity of her voice.

The assembly proceeded without a hitch. Eventually, it was time for the final part: Irina’s closing address as student council president. In the end, had she simply wanted Yuji to see her standing there like this? That thought made him smile—she was trying to impress him, and it was kind of adorable.

Just then, the phone in Yuji’s pocket vibrated.

He remembered Irina’s earlier words and making sure no one was watching, slipped the phone out and peeked at the screen.

“Bwuh! V-vibe?!”

The sight on his phone screen made him choke on air. Shougo, seated next to him, turned in surprise.

“Whoa? Don’t just yell out of nowhere! What was that—vibe? Did you get a message or something?”

“N-no, it’s nothing. Look, the teacher’s staring at us—let’s just face forward.”

“You’re the one who startled me…”

As Shougo turned away again, Yuji glanced back down at his screen.

There it was—an unmistakably live video feed showing a woman’s lower body, spread wide, with a long, crimson object buried deep between her thighs. And it wasn’t a still image—it was moving in real time.

‘I-Irina-senpai… what the hell are you doing!?’

Yuji instantly realized who had sent it. The pale inner thighs, the soft curves of her hips—he knew them too well. Irina had recorded a live feed from beneath her own skirt and sent it directly to his phone.

Staring in disbelief, Yuji looked up at the stage—and locked eyes with her.

Irina continued her speech as if nothing were happening, addressing the student body with grace and poise. But Yuji could clearly see it—that glimmer of smug pride in her gaze.

『Fufu… You noticed, didn’t you, Yuji-kun? Yes, right now… I’ve got something inside me, the same size as your length. How do I look? Even in this condition, your devoted submissive is still flawlessly playing her role as the student council president… Aah!』

Just for a moment, her face flushed with bliss under Yuji’s gaze. Irina must’ve wanted him to see that—her pride as the president, unshaken even in the throes of pleasure.

But for Yuji, it was far from comfortable.

‘If anyone finds out… If her reputation gets ruined—’

Frantically, he remembered something: the switch she had given him.

‘If I press this, maybe she’ll stop this prank…’

Believing that, Yuji pressed the button in his pocket.

『H-hnngh?! …Ahem, excuse me. Now, continuing from earlier—regarding your recent behavior…』

The moment he pressed it, Irina flinched noticeably on stage, her body trembling as her voice faltered. On Yuji’s phone screen, the red device inside her began to squirm and rotate slowly.

‘Ehh!? W-wait, this button… it was the control for the toy!? Crap, I’ve gotta stop it right now—where do I press? This one? Or maybe this?’

Panicking, Yuji began pressing the button over and over from every angle. But the switch only had one button. And the more he pressed, the more powerful the vibrating device became.

“Ten students were late this morning—nhh! It’s simply unacceptable. You must all remember what it means to be students of Saint Eulora Academy—nfuh… and act accordingly!”

『Aaahh! Yuji-kun, you really are an unbelievable man… You’re actually trying to push me to my limit even in this situation… nghh! That thing inside me—it’s swirling around my core like crazy! But I won’t give in. I am Shirogane Irina, student council president of Saint Eulora! I’ll endure this… I’ll show everyone, and especially Yuji-kun, that I can maintain control no matter what! Haaah—it’s too intense~!』

Because Yuji had pressed the button so many times, the device inside Irina was now violently twisting and vibrating with terrifying force, thoroughly stirring her from within. On the phone screen, her opened thighs trembled uncontrollably, and her soft, parted petals glistened and shimmered as fluid burst forth in flicks and sprays.

Yet despite everything, the face Irina showed on stage remained composed—her cheeks slightly flushed and her breath occasionally catching in her words, but otherwise flawless. No one in the audience noticed anything was off… no one but Yuji, who knew the truth.

‘A-amazing… Irina-senpai. Her legs are shaking like crazy and her warmth is soaked through, but she’s still standing strong, acting perfectly composed just like always… But… it looks like her knees are about to give out. Please… let it end soon…!’

Moved by Irina’s incredible willpower and overwhelmed by concern, Yuji clasped his hands tightly, silently praying for the assembly to end as soon as possible.

“That concludes my remarks! I expect great things from all of you!”

As if answering his prayer, Irina finally brought her closing speech to an end. Her words carried the authority of someone beyond even the student council—yet her innate presence made the audience cheer instead of question. She gracefully stepped down from the stage amidst thunderous applause.

The entire auditorium erupted in a storm of clapping, almost like a concert. Amidst the roaring ovation, Yuji let out a breath of relief.

But then, in the very next moment—

『NnhhoooOOOOoooo~~~!?』

A loud, utterly obscene cry—clearly a woman’s moan twisted in ecstasy—rang through the hall.

For a brief second, silence swallowed the auditorium. And then chaos exploded like a shaken hive of hornets.

Yuji’s heart nearly stopped. But using the confusion to his advantage, he slipped out of his seat and rushed off to check on Irina’s condition.

***

“Seriously! What are you doing, Irina-senpai!”

In the student council room after school, Yuji stood imposingly before Irina, scolding her for her reckless behavior. However, with his lower half exposed and his arousal dripping as it stood firm and upright, his words lacked any real persuasive power.

“Ah, I’m sorry, Yuji-kun. To think I couldn’t endure till the end… I really failed as your submissive, didn’t I? For someone like me, Shirogane Irina, to end up so disgracefully, ahaha…”

And there before Yuji, was not the uniformed schoolgirl but Irina, clad in seductive, bright red patent leather bondage gear, her cheeks flushed with embarrassment as she knelt down. Her bustier barely covered her white abdomen, leaving her breasts fully exposed, and her panties were crotchless, revealing her damp core clearly.

With her bosom boldly thrust forward, she cupped them with hands gloved in long red leather, her shapely legs encased in knee-high stiletto boots and spread wide in an ‘M’ shape before Yuji. Biting her lip in humiliation, she devotedly stroked his length with her breasts, as if making amends.

“No, that’s not what I meant! Please, no more risky stunts, Irina-senpai. When that climax cry echoed through the auditorium, I thought my heart was going to stop. If Celestine hadn’t come to our rescue, who knows what would have happened…”

Indeed. After moving to the deserted side stage, relieved Irina let her guard down and succumbed to her climax at the very last moment, letting out a cry loud enough to fill the auditorium before fainting. It was Celestine, her butler, who had come to her aid. He had carefully carried the unconscious Irina away, ensuring they were unseen, and had brought her back to the safety of the student council room.

Even while Celestine was guarding the front of the student council room, ensuring that no one witnessed the scene inside, Yuji initially hesitated to proceed with his actions just beyond the door beside Celestine. However, since Irina showed no concern for her presence, trusting Celestine completely, Yuji gradually stopped worrying about Celestine being nearby during their acts.

“That’s right. I’ll thank Celestine later. But more importantly, aaah, do you like the apology paizuri, Yuji-kun? While I might be a helpless maso bitch who showed a pathetic side while trying to act all high and mighty, aaah, at least let me service you with these breasts and stroke your penis, I want to please you.”

Perhaps it was the influence of her climax in public, witnessed by many via a vibrator, or maybe it was the shame of having faltered before her master. With her breasts, flushed red and nipples visibly swollen, Irina vigorously worked his penis with her bosom, striving to draw out pleasure.

Yuji had intended to scold her more harshly, but seeing the proud Irina trembling with humiliation as she begged to serve with her breasts, he found it hard to be stern. The fact was, he was also intensely aroused by the sight of Irina’s beautiful legs trembling on the mobile screen and her vagina being stirred by the vibrator. Thus, he could not refuse the service she offered.

Nevertheless, it was not preferable for Irina to jeopardize her position by indulging in pleasure to such an extent. As her master, Yuji decided to treat the runaway Irina more strictly than usual.

“That sexy red bondage outfit was really meant as a reward for a proper fuck, wasn’t it? But not today. You need to reflect on your reckless actions properly, so no sex for now. Here, squeeze those maso breasts harder and rub those erect nipples on the penis.”

“Yes! Nngh, it’s tough being on hold, but this is a punishment. A punishment for disappointing you, Master. Naaah, my breasts are crushing, my perfect breasts are deforming obscenely. Aaah, I’m rubbing them, my horny maso nipples on your penis, it’s tingling~”

As if punishing herself, Irina powerfully squeezed her breasts and, while writhing in agony, managed the penis with her protruding flesh.

The breasts that had proudly arched on the auditorium stage, captivating everyone’s gaze, were now pitifully crushed just for him, the soft skin clinging moistly to his shaft. Overcome with desire, Yuji firmly grasped Irina’s head and pushed the tip of his penis, protruding from the cleavage, right up to her nose.

“Kuah, it feels good, Irina-senpai’s maso paizuri. Sex is on hold, but if you can make me come like this, I’ll give you a full facial. Keep reflecting while you stroke my penis with your breasts.”

“Sniff, sniff, nhufaaah~. The smell of your penis, in my nose. Even though I showed such a disgraceful side, you’re still excited, aren’t you? Aaah, I’ll reflect, I will. Punish this worthless slave with a facial for getting easily horny from the smell of your penis~”

Burning her nostrils with the rising musk, Irina’s eyes moistened as she repeatedly stretched her upper body to vigorously stroke his penis with her cleavage. Her lips parted, tongue hanging out, she continued the paizuri while eagerly awaiting the humiliating defilement.

“Kuuuh! The soft breast flesh wraps around the penis, stroking it vigorously. Even though I said it’s a punishment, you’re waiting for a facial with a melted face, what a hopeless maso you are, Irina-senpai. Uaah, the semen is rising up. Keep milking it with your breast pussy until I come!”

“Nhaaah, I can feel it, the twitching of your penis through my breasts. My maso breasts are getting horny, aah, your penis is rubbing so much, I’m about to come~. It’s supposed to be a service, but I’m going to come with a paizuri climax, aah, my breast pussy is climaxing. Haaah~!”

As her breasts heated up intensely, Irina herself crushed them tightly with her hands, rubbing the overflowed flesh against the erect shaft. The fondled, heated breast flesh entwined like vaginal folds, extracting Yuji’s ejaculation desire to its limit.

“Kuhaaah! The melting paizuri breast pussy clings and sucks so fiercely, it’s dangerous, my penis is going to explode. Aaah, I’m coming, Irina-senpai. Take all the punishment semen on that beautiful face, kuahaaah!!”

As Irina was indulged in pleasure, a torrent of hot, milky semen struck her beautiful face.

“Haahiiin!? My face is hot, I can’t stop shivering~! Ohhh, getting dirty and climaxing, climaxing from a facial! Kneeling before Yuji-kun, ah, my face completely messed up, Hyaan. Climaxing with a paizuri while bathed in punishment semen~! Nhaaah~!”

The semen splashed onto her eyelids, cheeks, and tongue, sticking thickly all over her face. As her proud beauty was completely covered in sticky, smelly mucus, Irina, with her legs spread in an M-shape, trembled, and from the center of her torn panties, her love juices squirted out.

Emitting an irresistibly sweet and sensual moan, she quivered her sensitive breasts, and sunk deeper into the pleasure of perversion. Yuji, watching Irina excitedly, grabbed her wrists and pressed them onto her semen-drenched cheeks. His gaze intense, he continued to ejaculate fiercely, commanding the now disgracefully lovely and debased maso slave.

“Kuu~. Irina-senpai covered in bukkake semen, you’re incredibly erotic. Look, since I gave you a facial, show me how much you enjoy it. Smear my semen on your face right in front of me and go crazy with orgasm!”

Following Yuji’s sharp command, the rush of humiliation made Irina’s body twitch violently. Yet, far from resisting, she found joy in his words and began to spread the sticky semen on her beautiful face with her palms encased in glossy red enamel long gloves.

“Nhaahin~! To be given so much semen for showing such a disgraceful side, Haah, I’m happy. Wrapped in Yuji-kun’s smelly, sticky mess, I’m melting in shame~. Look, Yuji-kun. Your maso slave, Shirogane Irina, aah, smearing her favorite semen on her enviable beauty, displaying an ahegao, climaxing in maso ecstasy. Aheee~!”

Irina, her red tongue laden with thick semen, quivered as she spread the rich semen over her beautiful face. The intense scent of semen, the lascivious stickiness, and the penetrating gaze through her sullied beauty all intensely stimulated her masochistic nature, and she drowned in the climax of perversion.

Eventually, the long and abundant discharge slowly came to an end. Irina, with her pitifully smeared beauty facing upwards to show Yuji, and her erotically swollen breasts covered in semen, smoothly caressed them with both hands.

“Now that your face is covered in semen, it looks like you’re smearing it on your breasts too, Irina-senpai. You really are a semen-loving perverted maso, aren’t you? So what are you going to do next? Plan to masturbate with those semen breasts?”

As Yuji asked, Irina, with her eyelids heavy from the weight of the semen, blissfully closed them and slowly shook her head. Then, with her semen-slathered, luscious breasts, she once again enveloped Yuji’s still erect penis.

“Nfuaaah~. This time, I’ll give you a semen paizuri. As thanks for splashing so much on my disgraceful face, Haan, I want you to feel the naughty sensation of these slippery breasts~.”

The creamy semen-covered breasts, with their slick, velvety texture, added a lascivious slipperiness, delivering intense pleasure with every stroke to Yuji.

“Kuhaah! These melting paizuri breasts are sucking and squeezing, it’s dangerous, my penis is going to explode. Aah, I’m coming, Irina-senpai. Catch all the punishment semen on that beautiful face, kuahaaah~!”

Far from being angered by having her beauty soiled, Irina joyfully used her breasts as tools of service, offering them up obediently. Yuji felt an irresistible excitement at her compliance.

However, he had decided not to embrace Irina today. Reaching for the vibrator that had been stirring inside Irina on the podium, which lay on the desk, Yuji thrust the inorganic object carelessly into Irina’s slick, wet vulva as she was lost in the pleasure of the semen paizuri.

“Nhin!? Ah, my vagina is plugged with a vibrator…”

“I have to properly cover that drooling vagina. We won’t be using that hole anymore today. So, Irina-senpai, let’s enjoy plenty of semen paizuri. Today I’m going to smear your face, your breasts, your whole body with semen. That’s your punishment.”

As Irina stood trembling, her body eagerly writhed under the declaration that there would be no penetration, converting even the agony of denial into excitement. She dreamily rubbed her semen-covered sensitive breast skin against Yuji’s penis.

“Ah, my vagina is on hold. Yes, today I’m just a failed maso bitch of a slave to Yuji-kun. It’s only natural treatment, Haan. Ah, Yuji-kun, let me serve you. I’ll make it spurt so much. Make this useless maso slave Irina even messier with your thick punishment semen~”

Thus began again the rich milky breast service by the school’s beautiful student council president. Yuji continued to ejaculate multiple times, dirtying Irina’s beauty, her breasts, and even her red bondage attire. Her elegant silver hair was matted as she reflected on her shortcomings and became even more devoted to Yuji, who continued to care for her without abandoning her despite her failings.

“Hmm. Maybe I should have just had sex without trying to act tough. But no, that was the right place to draw the line…”

The next day, during the last period of the day, Yuji murmured softly, filled with restless thoughts. Perhaps because of the denial the previous day, Irina had come to pick him up in her limousine that morning but did not perform her usual morning service. Notably, the hole Irina had opened in the bathroom that day was later refurbished by the Shirogane family’s engineering maids, cleverly camouflaged to always be used as a secret small window for door-through service. However, that small window remained unopened this morning.

Irina didn’t seem particularly angry, but perhaps she was offended somewhere. As Yuji pondered what to do, the final period ended and the classroom chime rang.

Usually, Irina would rush to meet Yuji as soon as school was over, but today she was nowhere to be seen. Reluctantly, Yuji greeted Shingo before leaving the classroom and found himself drifting toward the student council room. He just wanted to see Irina’s face; it might be the first time he sought her out on his own.

Up to now, Yuji had fulfilled her lewd wishes as she requested, and of course, he had derived overwhelming pleasure from it. But more importantly, he was happy that the admired Irina relied on and was pleased by him.

However, if Irina’s desires and Yuji’s thoughts began to diverge, and Irina started to feel dissatisfied because he was being strict or deliberately teasing her… Up to now, Irina had conveniently converted all of Yuji’s actions in her mind as fitting for her master. But if a gap developed and could not be bridged, what would become of their relationship? Would it crumble easily and abruptly?

Standing at the door of the student council room, Yuji paused and pondered blankly. Suddenly, a hand landed on his shoulder from behind.

“Irina-senpai!? …Ah. Celestine…”

It was not Irina who stood behind him, but her female butler, Celestine. Yuji showed a look of disappointment, but Celestine, without any sign of being offended, whispered to him with her usual calm expression.

“Sado Yuji-san. Miss Irina is waiting. Will you come with me?”

“Irina-senpai is waiting? Uh, yes, of course. Please, lead the way.”

With an invitation from none other than Irina, Yuji’s heart throbbed as he nodded repeatedly.

Celestine led him to an old shed on the edge of the school grounds. It used to be used as a storeroom, but since a new, more convenient storeroom had been built, hardly anyone approached this place now.

“Miss is waiting inside. I’ll stay here.”

“Yes, thank you, Celestine.”

Yuji thanked her, and Celestine showed a faint smile.

Yuji turned the doorknob and stepped into the shed. As he closed the door and moved toward the back, bathed in the sunlight streaming through a small window near the ceiling, he saw at the far wall…

As Yuji approached, a female lower body jutted out from the wall, wearing only brown lace-up boots, exposing the groin area. Stunned, Yuji gaped at the pristine white buttocks, but he quickly realized. The peach-shaped, perky buttocks and the long, elegant legs splayed wide were unmistakably hers.

“Irina-senpai? Why are you dressed like this… Did you trip and get stuck in the wall? No, if that were the case, Celestine would have helped you immediately…”

While confused, yet still captivated by the white beauty before him, Yuji noticed several items like an intercom, magic markers, and a ruler on a desk next to the protruding lower body. Curious, Yuji picked up the intercom and put it on.

『You came, Yuji-kun!』

“Ah, it really is you, Irina-senpai? What’s all this about?”

Irina’s voice came through the intercom. While Yuji asked, Irina began to explain profusely, probably striking a troubled pose with her right hand to her forehead on the other side of the wall. Yuji could easily imagine it.

『Yesterday, I exposed myself in a disgraceful manner, didn’t I? I realized that this can’t continue. To remain a slave Yuji-kun can be proud of, I must discipline myself more rigorously! So, Yuji-kun, I need your help with my special training!』

“Special training… in this state?”

Looking at Irina’s lower body protruding inside the shed, Yuji tilted his head.

『Yes, exactly. This is my training to remain the obedient maso slave to Yuji-kun while still being the student council president, Irina Shirogane, outside. No matter how harshly you punish my lower half inside the shed, I will endure without changing my expression outside. If I can do this, I should be able to behave properly as the president even if Yuji-kun uses a vibrator on me during a student assembly.』

“No, I’m not planning to do that anymore… Ha ha.”

Yuji chuckled unintentionally, realizing that Irina wasn’t avoiding him; she was concocting a wild, yet very Irina-like plan to deepen their relationship.

Relieved, Yuji leaned his cheek against Irina’s buttocks and clung to her. Then, with a broad smile, he opened his mouth wide and bit into her peachy buttocks.

『Kyahii!? What, suddenly? Cough. That was just me getting surprised by the suddenness, no count! Ah, but as expected of you, Yuji-kun. You quickly grasp my intentions and get on board. You truly are worthy to be the master of Shirogane Irina, hyug! I’m still talking, you know!』

“If you can’t endure a surprise attack, it won’t be much of a training, right? By the way, you’re wearing clothes on your upper body, right?”

『Of course. I’m properly dressed in my uniform on top. Only my lower half is exposed! Ugh… Talking about it is making me embarrassed.』

Surely, Irina was blushing behind her red-gloved hands in embarrassment on the other side of the wall. Yuji could easily picture it, and this imagination only fueled his excitement further.

Breathing heavily, Yuji firmly grasped Irina’s beautiful buttocks with both hands and kneaded them powerfully. Irina’s beautiful legs started trembling minutely, and her labia were already moistening.

『Nngh… nfuahh. Your strong hands are, nfuun, thoroughly kneading my buttocks… Nhahn!』

“Just a little kneading, and you’re already letting out sweet moans. This isn’t much of a training if you can’t hold back.”

『Kufuun… I understand. But… hafuu. Since yesterday, not only was my vagina left unattended, but you didn’t play with my buttocks either, naah. I’ve been throbbing all night and held back all day after school. Now that you’re kneading me so strongly, I’m tingling and heating up… hyuguh!? Nmoo, bitten again~…』

Irina shared the same feelings as Yuji. Thrilled by this, Yuji bit deeper into her ripening, reddened peach buttocks, filling his mouth with her flesh. On the other side of the wall, Irina desperately covered her mouth with both hands, her eyes upturned, twitching in agony.

Yuji’s bites marked Irina’s buttocks, causing them to jiggle enticingly. As her vagina became increasingly aroused, Yuji marveled at her truly insatiable maso body. 

“You really are an erotic and impatient maso, Irina-senpai. I’ll make sure to train you thoroughly… Agugugu, belloo~”

『Hymuu~? Please, I beg you. Make me into the perfect maso slave suitable for you, Yuji-kun. My, my buttocks being bitten, ooh, trace the bite marks with your hot tongue, slathering it all over, nmmhyun~』

As vivid bite marks were etched into her sensitive flesh, followed by a thick layer of saliva being smeared and licked all over, Irina’s lower body shuddered intensely. The secretions from her labia were glistening and obscene. Yet, behind the wall, she probably clenched her upper body tightly, desperately suppressing her moans of pleasure.

Though it was ostensibly 『training,』the privilege of freely playing with the 『Silver Fairy Queen』made Yuji’s heart race. The perverse scenario of Shirogane Irina exposing her lower half exclusively to him excited Yuji immensely, and he began to push her intensely with sweet pain and excruciating humiliation.

“Irina-senpai, it seems like your buttocks have grown larger than before. Maybe they’ve swelled up from all the sex and spanking? This ruler, too, you want me to spank you even harder than with my hand, right? Such a perverted maso ass. As you wish, I’ll spank it plenty, turning it into an even bigger, more spankable derriere. Ei!”

『Kyahi~!? My buttocks, being spanked with a tool, this Shirogane Irina… But, kuuu. I will endure it! Don’t underestimate me, please, higyuu. Don’t pinch, ahii, don’t bite~』

Despite her bravado, the defenseless beauty of her buttocks, smacked with a ruler and pinched and bitten, forced Irina to scream out. Yuji’s relentless assault left her buttocks swollen red, tingling more intensely with each touch. Irina bit her index finger, desperately trying to stifle her moans.

Yet Yuji’s assault wasn’t merely rough; he also caressed the stinging flesh tenderly, applying saliva and lasciviously licking the throbbing flesh. He then massaged the tenderized flesh deeply, inducing uncontrollable arousal throughout her lewd buttocks, before renewing his fierce onslaught.

Irina’s beautifully spread legs trembled like a fawn’s, her buttocks swelled larger and reddened indecently. Her labia fluttered untouched, dripping love juices that formed a lascivious puddle at her feet.

“As I torment your maso ass, your vagina keeps drooling. Getting this aroused even though you’re being punished so much, you really are a hopeless pervert. The erotic scent is driving me crazy too… Hagug. Jurujuru~, Jupajupa~”

『Hyafuuu~. My vagina being devoured, ahah, being sucked. Naaaah, your tongue licking up inside my vagina, hahin. No, not the clitoris. Don’t flick it with your finger, it’s too sensitive~』

Yuji dived between Irina’s spread legs, his eyes sparkling with excitement as he voyeuristically admired her wet labia. He then enveloped her plump mons pubis in his mouth and began to devour it fiercely, twirling his tongue inside her slit to tease the tender flesh. Further excited, he vigorously flicked her peeping clitoris with his finger.

Irina’s legs flailed embarrassingly as her boots tapped the floor impatiently. On the other side of the wall, she probably covered her flushing cheeks with both hands, her eyes glazed with moisture, her tongue trembling as she writhed in pleasure.

After thoroughly enjoying her tender flesh, Yuji stood up and reached for a new tool placed beside the desk. He lit a red low-temperature candle, dripped wax onto her buttocks while inserting two fingers deep into her vagina, scraping intensely at the sensitive spots.

『Hiyaaa~! My buttocks are burning up, they’re going to scorch. My perfect buttocks are deforming indecently. Nwooo, don’t twist so hard. That’s a weak spot, it’s sensitive. Ahah, ahin. Twisted too much, my vagina is twitching non-stop, I’m getting incessantly horny. Nhaaa~!』

In response to Yuji’s relentless provocation, Irina, forgetting her original goal to endure, let out uncontrollable sweet moans. Although she had thoroughly researched this usually deserted place for privacy, the humiliation of exposing herself outdoors, even just her face and voice, made her spine shiver uncontrollably. However, the joy of having her lower half mercilessly tormented by Yuji overwhelmed the extreme humiliation, melting both her body and mind irresistibly sweetly.

Gradually, Irina’s lower body became a twitching, indecent mass of flesh, her buttocks blushed red, dripping love juices from her labia without even being touched. Satisfied with the lewd scene, Yuji picked up a red marker from the desk, began to write on her buttocks, and then took a commemorative photo with Irina’s buttocks, emailing it to her.

“Irina-senpai, you have your phone, right? Check the email I sent.”

『Nhufaa… my phone? Okay… Haan!? What… ‘Easy Slut’? My vagina and buttocks are just tools solely for Yuji-kun..』

Trembling, Irina pulled out her phone from her uniform pocket to check the new message, her lips parting as she let out a hot, troubled breath.

The screen displayed a photo with 『Yuji’s Exclusive Maso Ass』written in bold red on Irina’s swollen buttocks and 『Easy Slut』on her thighs, with an arrow pointing to her drooling labia. Yuji, grinning broadly and flashing a peace sign, was also in the photo.

Shivering profoundly as she realized how extensively and obscenely her lower half had been tormented and transformed, Irina convulsed.

“Juice just squirted out again from your pussy. Your ass and sexy legs keep trembling, I can’t hold back my excitement anymore. Irina-senpai, I’m going to plunge my dick into you. I’ll make full use of this onahole attached to the wall, my exclusive wall-ass.”

Unable to contain his perverse excitement any longer, Yuji declared, stripped off his trousers and underwear in one swift motion, and gripped Irina’s slender waist with both hands, pressing his pulsing tip to her quivering labia.

『Aah, wait, please Yuji-kun! If you thrust now, I absolutely can’t hold back. This is supposed to be training, I need to endure… I’ll end up exposing myself disgracefully again. Shirogane Irina will succumb to your dick. You’re treating my maso ass like an onahole, to be used as you please. Nhaaaah, it’s going in, I’m coming, being fucked~!!』

Ignoring Irina’s protests, Yuji plunged deeply into her dripping vagina with his engorged erection. Although Irina instinctively covered her mouth with both hands, she couldn’t suppress the climax that burst forth, her screams of ecstasy echoing through the after-school campus as she arched her back dramatically.

The intensity made the intercom on her head fall off, clattering to the ground. But Yuji, oblivious to this, continued to mercilessly ravage her from behind.

“Hey, your voice got quieter. Did you pass out or something? Well, it doesn’t matter. I can’t hold back anymore. I was trying to act cool yesterday, but really, seeing you give a speech on stage while being undisturbed even though you were being vibrated, I just wanted to mess you up and make you moan. I’m going all out, Irina-senpai! Punishing fuck for the maso president who only sticks her ass out of the wall to lure dicks! Kuahhhh!!”

Yuji covered her jutted-out buttocks, pistoning fiercely like a beast, her swollen ass jiggling delightfully with every thrust, her graceful legs shaking pitifully.

『Hymooo~!? Your dick is too intense, it’s incredibly sucking! My pussy, being ravaged, I’m being raped by Yuji-kun! Even Shirogane Irina is just a hole behind the wall, a mere piece of flesh with an onahole attached to it for Yuji-kun’s satisfaction. Aah, my womb is being pounded, it feels too good, my mind is going crazy~!』

Desperately covering her mouth to suppress her moans, Irina unconsciously licked her own hand with her tongue. Her left hand pressed against her chest, kneading her protruding breasts, milking her own pleasure.

Lost in the throes of pleasure, oblivious to time and place, Irina was deep in ecstasy when suddenly her body stiffened. To her shock, a figure appeared in this place where no one was supposed to come.

“Ah!? What happened to you, Lady Irina?”

The newcomer was a quiet-looking young girl with braided hair and glasses. If Irina’s memory served her right, this was a first-year student named Kurokawa. Unbeknownst to Irina, she was member number two hundred sixty-eight of the unofficial Shirogane Irina fan club.

“Oh, good day. You’re Kurokawa-san, right? I was just doing some student council work in the storage room when the wall broke, and now my buttocks are stuck. Ohoho…”

Despite the relentless pleasure still being sent through her vaginal folds, Irina managed to greet the girl with a laugh, striving to maintain her composure and grace. The girl, dazzled by the flower-like smile of her admired student council president, seemed dizzy and took Irina’s words at face value, sounding concerned.

“Haahn. Lady Irina, that you remember my name… But never mind that, this is serious. I’ll go get someone!”

“Stop, Kurokawa-san! It’s okay, I’ve already contacted my butler. They’ll be here to help me out soon. So please, go back and don’t worry about me”

Irina said, her voice quivering with rising pleasure, yet she still smiled serenely and stood firm.

However, inside her mind, sparks of pleasure crackled, and she fought an intense urge to scream and writhe in ecstasy.

‘Nhaaa! She’s looking right at me. My pussy feels too good. I want to writhe in ecstasy right now! But I can’t. I am Shirogane Irina; I can’t show such a disgraceful side of myself except in front of Yuji-kun. Haan, but Yuji-kun, it’s too much, it’s too intense. Ah, this must be the trial Yuji-kun has given me!’

In reality, Yuji, overwhelmed with excitement and pleasure, hadn’t even noticed Irina had dropped the intercom and was entirely lost in the act. But Irina misconstrued this relentless public ordeal as a trial given by Yuji, resolved to endure it to be acknowledged by him again.

Meanwhile, the girl sensed something unusually lascivious about the calm Irina was projecting. Though she was a naive girl unfamiliar with sexual pleasures, her concern for the beautiful student council president she admired kept her from leaving, unconsciously fidgeting her thighs in place.

“But, I can’t just leave Lady Irina in such a state…”

“Ufufu, what a kind girl you are. Then perhaps we could chat a little while?”

Irina, having rationalized the ordeal as a trial, suggested with a calm and gentle smile.

Unaware of the true debauchery happening on the other side of the wall, the girl grew even more devoted to Irina, touched by her thoughtfulness.

Inside the cabin:

“Irina-senpai, just as you declared, you’re enduring the pleasure without making a sound. Your knees are trembling so hard, it’s impressive. But seeing you like this makes me want to torment you even more. I am your master, after all, Irina-senpai. I’ll thrust into you even more intensely and make absolutely sure you moan. Here we go, here!”

What was supposed to be Irina’s training to endure pleasure had, at some point, turned into Yuji’s goal to make her succumb to it and moan in pleasure.

And then, the merciless, fierce pistons struck. As her buttocks were slapped repeatedly, her inner depths were intensely and repeatedly gouged, and Irina’s body, inflamed by the immoral situation, was consumed by an insane amount of pleasure.

“Yes, you’re in the art club, aren’t you? I’d love to see your paintings sometime”

She managed to say while conversing gently with a girl, although her speech was tinged with lewd moans and her eyes occasionally rolled up in the bliss popping in her mind. Yet, she managed to avoid any suspicion, likely because it was the girl’s first conversation with Irina, and she was too bashful and dreamy to notice anything unusual.

‘Hyiiin? Yuji-kun, it’s too intense. Ahh, you’re definitely trying to make me submit. These relentless pistons deep inside me… You must be dying to see me in agony and moaning pitifully. I want to fall too. I want to be trampled by your cock and moan wildly as a pathetic masochist! But not now. Outside this cabin, I am still Irina Shirogane, the student council president!’

Every thrust into her depths sent a deep ache to her womb, numbing her lower body, and her elegantly spread legs shook violently, her heels lifting off. While her lower body writhed in debauched pleasure, Irina still maintained her aspirational facade with the upper body the girl was watching.

But Irina’s endurance was at its limit. The lower body she exposed only to Yuji was convulsing in pleasure, and she unconsciously shook her buttocks, lewdly begging for deeper penetration, leading her towards climax.

And her vaginal canal was also spilling a large amount of love juices, making the vaginal folds excessively slippery and lewd, contracting lewdly and intensely several times, begging for ejaculation. Even the cervix was sucking on the sensitive tip, driving Yuji’s ejaculation urge nearly to the brink of explosion with the overwhelming pleasure.

“Aahh! Irina-senpai, this is too amazing! While keeping a composed facade with your upper body, your lower half is begging for a creampie climax so lewdly. Ohh, I’m about to come too, I can’t stand it, I’m going to cum! Here I go, Irina-senpai, I’ll thrust deep into you, right into your womb with my semen. Ugh!”

As Yuji momentarily pulled his hips back, only the tip of his penis remained inside her. Sensing the impending intense thrust from the changes inside her intimate flesh, Irina realized she couldn’t endure it and instinctively pulled the girl close with both arms.

“Kyah? I-Irina-sama?”

“I’m sorry, just stay like this for a little while longer, hyuug!”

The girl, suddenly embraced by the admired Irina, was flustered. Meanwhile, Irina, to avoid showing her climaxing face to the girl, pressed her cheek against the girl’s and covered her own mouth with her right hand.

Then, without a moment’s delay, a powerful thrust hit Irina’s cervix, sending explosive pleasure throughout her body, causing her entire body to numb and her brain to burst with sensation. The pleasure made her vagina twitch uncontrollably as it was filled with an intense, scalding torrent of milky fluid.

Bubyu bubyu, dobyu dobyu, byukurururu!

“Hymuoooh!? No, I can’t hold it, I’m cumming, I’m cumming—Cuuumming!!”

“Fuaah!? I-Irina-sama! What a seductive voice, kyafuu, I’m dizzy, aahhh—haaan!”

Despite her desperate attempt to cover her mouth with her hand, the electric shock-like intense climax couldn’t be completely suppressed, and Irina leaked sweet, lewd moans through the gaps between her fingers.

The girl embraced by Irina was enveloped in her sweet, noble scent while having lewd screams poured directly into her ears. The innocent girl was overwhelmed by an obscene excitement she had never felt before, causing her body to twitch violently. And, wetting her inner thighs, she drooped her head and fainted.

However, the hot, intense ejaculation continued. While looking down at Irina’s beautiful butt and legs convulsing in climax, Yuji smiled contentedly and kept grinding with the ejaculating tip, repeatedly pouring his climax deep inside her, again and again.

“Ah, I can barely hear Irina-senpai’s climaxing voice from beyond the wall. She’s desperately covering her mouth with both hands, enduring the climax. Though her lower half is trembling uncontrollably, her upper half must still be the cool Irina-senpai. Ugh, that’s why I want to mess her up even more! Even if she can endure the vibrator, she can’t withstand my creampie. I’ll teach this butt meant only for me, kuaahh!”

Yuji pulled Irina’s buttocks towards him with all his might, thrusting his hips to the limit and gouging out her inner depths. Then, he fully embedded his glans into her cervix, spurting a massive amount of semen, as if emptying his testicles, directly aiming for her womb.

“Hymu fuguu—!? Cumming, cumming—Cuummiiing!! My vagina is burning, my womb is swelling up! I’m being filled up, turned into a wall ass, completely made into a cumming hole just for Yuji-kun! Hymu hoooh, no more, can’t stop cumming! Even with someone next door, going crazy, Yuji-kun’s personal maso butt, constantly climaxing, nhyuooooh—!!”

Even as she covered her mouth with both hands, she could no longer suppress the bursts of moans due to the climax. Irina’s eyes rolled back, and tears burst from the corners of her eyes as she stuck out her tongue sharply from her widely opened mouth, convulsing her entire body in climax. Although the girl in her arms had fainted, each time the obscenely lewd moans of Irina were poured into her ears, her unconscious body continued to shiver.

Limp with the immense sensation of climax, Irina continued to twitch her upper body that was sticking out from the wall. Still, beyond the wall, Yuji continued to unload his desire into Irina’s vaginal canal.

At that moment, she sensed someone’s presence around them again. But Irina was completely powerless, unable to take a defensive stance.

“Irina Ojou-sama! I apologize. I was on guard at the entrance and failed to notice the disturbance here in time.”

The one who appeared was the butler, Celestine. A great relief spread across Irina’s chest, and her body slumped powerlessly.

“C-Celestine… I’m glad you came. Please take care of this girl.”

“This young lady… Understood. But, Irina-Ojou-sama..”

“I’ll be fine. He will be here soon… Ahin!”

It seemed that Yuji’s lengthy ejaculation had finally come to an end. Despite letting out a sweet moan from the last spurt, Irina managed a faint smile through the sweat beading on her forehead due to her continued endurance.

“Understood. Then, I shall take my leave.”

Having guessed everything from Irina’s brief words, Celestine bowed to Irina, then swiftly carried the fainted girl away.

Afterwards, Irina let her upper body hang down from the wall, succumbing to gravity while indulging in the afterglow of her climax. The breeze blowing through felt pleasant on her flushed cheeks. Inside the cabin, her elegantly spread legs were still twitching, and the copious amounts of milky fluid poured into her were probably dripping obscenely.

Then, a few minutes later, a cheerful Yuji appeared outside the cabin. Finding Irina exhausted, he lifted her up and hugged her tightly.

“Irina-senpai. I got so excited, I came a lot. I tormented you so much, but were you okay? Your ass and long legs sticking out from the wall were too erotic, I forgot it was supposed to be training halfway through.”

“Naah… I understand, Yuji-kun. Even now, my pussy is filled with so much gooey semen, Aahn. My butt was tormented a lot too, and if it weren’t stuck in this wall, I might have collapsed right away. I tried hard to endure… but Yuji-kun’s dick and semen were too much, I couldn’t hold it in. Maybe I really am disqualified as your masochist slave…”

Laughing self-deprecatingly, Irina looked so adorable that Yuji hugged her upper body even tighter. Then, he noticed Irina’s dropped communicator on the ground.

“Hey, did you drop your communicator? I was so into it, I didn’t notice at all.”

“Ufufu. That’s right. That’s why you were so fierce despite that situation… Haan.”

Catching on to something in Irina’s mutter, Yuji asked if something had happened. That’s when he first learned that, despite being relentlessly pursued by Yuji, Irina had continued to act resolutely as the student council president in front of the girl who had visited.

“I’m sorry! I was so focused on your pussy, I didn’t notice someone had come… Even though I was talking big yesterday, I put Irina-senpai in danger. That makes me the disqualified one…”

Realizing he had been completely oblivious to his surroundings due to his indulgence in pleasure, Yuji bit his lip and looked downcast. However, Irina gently wrapped her arms around him.

“Hehe. Disqualified? Not at all. Rather, I’m so happy that you were that into me. And today, I really understood. I can’t resist Yuji-kun’s dick… Hey. Even though I’m such a pathetic, easy masochist slave, will you keep me by your side?”

Tilting her head inquiringly, Irina was so endearing that Yuji hugged her tightly again.

“Of course. Rather, even though I’m such a pathetic guy, can I still stay by your side, Irina-senpai?”

“That’s obvious. I asked you to be my master. From now on, let me serve you as your masochist slave.”

Saying this with a charming smile, Irina was irresistible, and Yuji, after checking around, deeply kissed her lips.

“Amun. Is it okay? We’re outside…”

“Muchu, Chupa. Today is special. Even if someone comes, I’ll hide us properly this time.”

Reassured by Yuji’s words, Irina clung tightly to him with her upper body that had emerged from the wall. Then, they indulged in a blissful kiss, lost in the joy of their connection.

***

“Haa!? I-Irina-sama…? …H-huh? I… I fell asleep…”

When she opened her eyes, the girl found herself sitting in the grass at the edge of the school building, leaning against a large tree. Apparently, she had dozed off. It felt like she had just been dreaming something incredibly lewd—yet strangely blissful.

“Ah, it’s already this late. I have to go… Kuun. No way, I’m… wet…”

As she stood up, brushing off the hem of her skirt, she felt a sweet tingling between her thighs. It seemed that her underwear had gotten damp—soaked, in fact.

“Hauu… Even though I was dreaming about my beloved Irina-sama, to end up getting this wet down there… I’m sorry, Irina-sama. I’m a failure as a fan club member…”

Blushing furiously, the girl covered her face with both hands in embarrassment and hurried away from the spot. She had no idea that, for nights to come, she would continue to dream of Irina—intimately entwined, moaning in ecstasy again and again.