7 Lustful Master

Nightingale let out a loud cry that seemed to echo not only in the room but throughout the passage of Chaldea. 

The sound of the female's wails, mixed with a dull sound, was a mesmerizing BGM that accurately aroused the male's animal desires. Although she is not consciously aware of it, her cries betray a submissive undertone towards the male.

Even though her entire field of vision was enveloped in a blinding flash, Nightingale instinctively widened her eyes.

Whether it was the primal pleasure of being a female or the overwhelming sensation, overflowing emotions made her shed tears. To avoid even a bit of the immense pleasure escaping her, she arched her back, worrying it might break her spine.

The black ribbon that had been braided into her hair had somehow come loose, and on the pure white sheet, her peach-colored long hair spread like waves. A few strands stuck to her sweaty cheeks, revealing the decadent luster of a woman drowning in pleasure.

Her well-rounded, supple legs, which were wide open in an M-shape, kicked like paddles through the air, stretching in a straight line up to the tips of her toes. Each time her abdomen swelled or contracted like convulsions, she emitted a massive gush of love juice.

Nightingale's squirting reached the Master's lower abdomen, making a splashy, embarrassing sound. 

"I'm cumming... I'm cumming... I'm cumming... I-I'm... I'm... Aahhh..."

As she reports her orgasm, she loses the dignity and reason of a lady born in an upper class upbringing, and lets out a loud moan that seems to make her throat dry up. She uses the word "cum" that her master taught her, mixing it in her sweet, muffled voice. 

Despite her attempt to release the overwhelming pleasure coursing through her entire body, it was as futile as a drop of water on a scorching stone.

She had ingrained into her very bones that her previous masturbation was merely a solitary act, making it certain that self-pleasure would no longer suffice.

"This... this isn't something I... I don't know... Sex therapy is too intense... If I learn this, I might become addicted... I'm cumming..."

However, what the Master meant by "cumming with all one's might" wouldn't end with merely conquering her vagina and crushing her uterus.

Amidst the constantly rising torrent of climax that engulfed Nightingale, Ritsuka whispered clearly enough for her to hear.

For Nightingale, whose consciousness was clouded by pleasure, his words were akin to a death sentence.

"...I'm going to 'move' now."

"Ah... Ahh... Please..."

She tried to form words, a sentence, anything...

But before she could, Ritsuka slowly withdrew the pressure he had been pushing into her hips, savoring the sensation of her vaginal walls.

The massive penis, buried in her pussy, was drawn out gradually, the base of the thick shaft gradually exposed to the open air. From the warmth of her vaginal flesh, heated by sexual excitement, steam with a lewd odor rose.

"Ah... Ah... Ahh... No... No... It's tingling... It's... Stop... Stop... It's... It's... No... I can't... I can't... I-I'm... Aahhh... I-I'm... I'm..."

Shaking her head from side to side, tossing her peach-colored hair wildly, Nightingale desperately pants, begging Ritsuka not to move. However, faced with her lasciviousness, lewd virgin pussy, the man couldn't resist any longer.

"It's okay. Nightingale's folds feel so good, even through the condom... Please, let me taste more?"

In that momentary glimpse of Ritsuka's hunger, wolf-like expression, Nightingale lets out a scream like that of a young girl. She understands that for him, she's prey to be devoured, and he's not yet satisfied.

"At this rate... I'll... I'll be devoured... I'll be eaten.. I must... must escape... My body... can't move..."

Ritsuka's menacingly thick cock is covered in a greenish condom. Compared to a raw, uncovered penis, the difference in the height between the glans and the shaft was smaller due to the constraint of the condom.

Apart from being blocked by the rubber, it was difficult to transmit the hardness and heat of the penis. Nightingale's sensations were somewhat milder. However, she believed the intense pleasure would incinerate her brain.

"I'm going to die... I'll die...I'll be Killed by Master during sex... The thick cock will dig into my pussy... I'll cum and die... Help...I'm cumming..."

"Ah... No...No... It's tickling in the sensitive spot... It's tickling... You're... you're stimulating where I was feeling with my fingers... Ahh... I'm... I'm cumming... Please... Stop... Tickling... I can't... Please..."

Reaching out her hands as if asking for help, Nightingale's palms faced the air. However, her hands remained empty, and Ritsuka pulled his hips back, just as the glans was about to exit the vaginal opening.

Even amidst her masturbation, the thickened and swollen G-spot, which she had stimulated with her fingers, was excavated relentlessly by the thick glans. Although she was already feeling a pleasure that seared her brain, a stronger surge of electricity swept through her body, making it all tingle.

"Ah... Please... Cumming... It's still tickling... It's still... It's still... I'm cumming... I'm... I'm... Ahhh..."

"Really, Nightingale is such a naughty servant. If you make such a sexy voice, I can't hold back."

BANG!!

The loud sound of their flesh colliding was as immense as Nightingale's cries.

Ritsuka, having drawn back his hips like a taut bowstring about to release an arrow, forcefully thrust his hips towards her pubic bone. The soft uterus was crushed by the hard glans, sending a shock deep into her body, along with a heavy sensation of scorching pleasure.

"Nightingale, with widened eyes, emitted inarticulate cries of pleasure."

As naturally her mouth opened, she protruded a saliva-moistened seductive tongue, displaying a lewd Ahegao face. This further stimulated the master's carnal desires, prompting him to continue with unrelenting and ruthless piston movements.

With each slow withdrawal of his massive penis, the thick glans, covered by the condom, furiously excavated the vaginal flesh and folds. As the Master vigorously slammed his hips, the metallic-hard glans crushed her uterus.

"Squish... squish... squish... BANG!! Squish... squish... squish... squish... BANG!!"

"Loose... sho...u...lders... I'm cu...ming... Piston... Thrust...me... I'm c...u...mming... I'm... Ahh..."

Nightingale, who had never displayed such a humiliating and lewd voice in her lifetime, was kneaded by the glans against her uterus as if pounding mochi. Her anterior vaginal wall, commonly known as the P-spot or prostate of women, rapidly expanded.

As she began feeling a sensation of floating during climax, she couldn't return from the feeling of being airborne. Rather, every time her master crushes her womb, she rises higher into the air 

Overwhelmed by the feeling of unease and instability, Nightingale stretched her supple arms toward him.

Her outstretched hands made contact with the Master's shoulders. She clawed into the firm muscles with such force that blood trickled from the area where her nails dug into the boundary between shoulder and back. However, Ritsuka, without any concern for the bleeding, intensified his forceful thrusts.

"I... I'm cu...mming... Your... Pe...nis... feels...good... More... More... I'll keep... cu...m...ming... "

"I want more of Nightingale. I want your cute and sexy face when you climax, your sweet and cute voice that I could never imagine in your usual self— I want more."

"Ahhh … Cute... Ahh... It's clenching... More... I'm... Gonna... "

The word "cute," which she had never been told in her lifetime, made Nightingale squeeze her convulsing vaginal muscles as if seeking comfort. The thick glans, akin to a spearhead, dug deeper into the vaginal flesh and folds than ever before.

Although her rational mind still tried to perceive this act as therapy, her body and instincts had already succumbed to Master Ritsuka as a woman and a female. 

Being called cute by him, someone she found attractive as a man, triggered a sensitive response in her honest body.

Unable to hide her happiness, Nightingale's mouth curled into a relaxed smile. Her ruby-like eyes glistened with tears, saliva dripped from her lips, and she grinned, all of which made her irresistibly lascivious.

The Master, sensitive to human subtleties, noticed Nightingale's joy upon being called cute. He leaned in close to her ear, repeatedly whispering words of love. All the while, his powerful hip movements continued unabated, persisting in the development of her vagina and uterus.

"Nightingale is cute. Normally, you're stunningly beautiful, but when doing naughty things, your expressions become so charmingly cute. Show me more of your cuteness?"

(I'm happy being called cute by Master makes me happy. Therapy this sex is therapy but at this rate, it might just become an ordinary union between a man and a woman. Sex while being loved by Master feels like...)

While being embraced by the Master and showered with love, she objectively realized that she, sweetly voicing her climax, was just engaged in sex between lovers. It was a situation where, without a doubt, ten out of ten people would perceive it as a deeply affectionate lovemaking session, but Nightingale stubbornly insisted it was part of her therapy.

(No, no, that's not right this is sex for treatment, judged necessary by Doctor Ritsuka Fujimaru-kun, this is still therapy we haven't kissed, and it's not "unprotected sex" So, it should be fine)

She defined even the act of kissing and having condomless sex within herself as the boundary between therapeutic acts and lewdness. It was her personal rule, but for Nightingale, who naturally possessed the Berserker skill and its default madness, it proved highly effective.

Deciding that as long as there was no kissing or raw sex, she felt reassured that everything was still alright. However, the stronger the effect of self-suggestion, the greater the backlash when it crossed the boundaries of therapy.

Unaware of this, she ultimately succumbed to the Master's actions, being violated as she was.

Perhaps due to the condom hindering his sensation, Ritsuka Fujimaru continued his forceful thrusts for a longer duration than usual, almost crushing her uterus nearly two hundred times before finally intensifying his sense of ejaculation.

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New Chapter After a Long Time..