Chapter 6: Nightingale’s Therapy
Nightingale was undoubtedly captivated by the size of Ritsuka's big cock, which was clearly incomparable to that of an average person.
"Ahh... I-it's... That penis ♡♡... It's completely different from anything I know Master, ♡♡"
With her limited male encounters she cured, that never even touched her sexual side, Nightingale couldn't calmly accept the extraordinary size of her Master's cock. His dick, characterized by an ominous shape resembling a spear of flesh, was much thicker than an adult woman's slender arm and exceeded 30 centimeters in length.
The robust meat rod that would ate any woman, no mere fingers and toes could encompass had indulged in plenty of female secretions, and used the woman's juices as a lubricant and was thoroughly polished by her vaginal flesh and vaginal folds, causing a lustful water burn until it turned reddish red. If someone with a lot of sexual experience looked at his slutty dick, they would know that he had fucked quite a few women.
However, the most wicked aspect was the ridge wider than a thumb's width.
That neck was like a deadly weapon to gouge and dig into a woman's pussy, a seductive edge that made even divine spirits or creatures capable of destroying worlds squirm and wail. Even if one were a Heroic Spirit, if their origin was merely female human, there would be no way to withstand the pleasure derived from that demonic penis.
Instead, the minimum requirement to withstand sex with the Master was to possess the robust physique of a Heroic Spirit. Yet, most female Servants who engaged in serious sex with master ended up completely addicted to the lust of having sex with him, transforming their spiritual foundations while becoming exclusively dedicated to the Master as his sexual partners and wives...
Naturally, Nightingale's female instincts had already realized that she was completely been defeated. Since she was a virgin woman with no sexual experience, her master's thick dick would never enter her narrow vagina, which even her own fingers were tightening tightly. She was scared for this reason.
"If I'm treated with something this... I'll... break... M-my vagina will tear... I'll die from treatment—"
Unconsciously, Nightingale followed the Master's instruction and closed both legs. The hands that had exposed her labia were now covering and concealing her private parts.
Her lewd figure trembling all over while hiding her private parts inadvertently fueled Ritsuka's sexual desire even more, a fact she failed to recognize. In a slightly lower tone than usual, he questioned her almost accusingly.
"Why are you hiding your vagina, Nightingale? If you do that, I can't 'treat' you. Hurry and open up so I can insert my cock."
"W-wait... Do you have no other treatment methods? I don't think your long and thick penis can fit inside my pussy"
With a sincere hope, Nightingale asked if there were any other options, but he mercilessly responded while staring into her deep crimson eyes.
"There aren't any. You, the 'lewd' Nightingale who gets excited by the smell after sex with I had with Morgan, won't be cured until my dick thrusts all the way into your womb. 'At least' I'll use a condom for treatment. Will you listen to what the doctor says?"
"Ah... Y-yes... I must obey the doctor's orders I'll have sex therapy with Master Ritsuka..."
Ultimately, due to the influence of her madness, Nightingale couldn't go against her Master, who was also her doctor.
Moreover, the reason she obediently listened to him was that, unlike his usual kindness to everyone, he now exuded a forceful and "male" attitude. Witnessing glimpses of the bed's mafia within him, Nightingale's heart raced wildly, and her will to oppose him faded away.
She became more conscious of having sex with the Master and flushed cherry from her deep crimson eyes to the tips of her ears. Just as before, she boldly spread her legs and, with trembling fingertips, opened her labia. To accommodate the massive penis, she was producing even stickier love nectar from her vaginal opening than before.
While getting excited by Nightingale's lascivious posture, Ritsuka opened the package of the largest-sized condoms available. He tore open each individually packaged condom packet and retrieved a round, lime-colored rubber from within.
He pinched the tip firmly, expelling air while donning the condom on the massive penis. Clearly adept at the process, he stretched out the rolled-up condom to cover the entire length of his penis.
However, no matter how large the condom was among the pre-made ones, it was never meant to accommodate the Master's exceptional size.
The rubber was stretched so tight that it could have easily torn, and its strength was no match for the hardness of the erect penis. Normally, such a tight rubber would cause discomfort, yet his robust penis felt no pain at all.
The condom barely covered half the length of the penis. It was evidently not the right size, a testament to how exceptionally strong and superior Master Ritsuka was as a male.
He firmly grasped Nightingale's pelvis from both sides, allowing the large glans wrapped in the condom to touch her vaginal entrance. With a lewd, squelching sound from the copious love nectar overflowing from her vagina, he coated the entire penis, including the condom, creating an obscene watery noise.
The lime-colored condom was wet with her sticky love fluid, reflecting the room's light and shimmering alluringly.
Faced with her impending first sexual encounter, Nightingale could only plead for a gentle "treatment." Unaware herself, her voice was slightly higher than usual, sounding somewhat submissive as she requested the Master.
"M-Master... I'm embarrassed to admit, I have no experience with sexual activities... I-I'm a virgin, so please be gentle at first..."
"Nightingale, you're a natural lewd woman, aren't you? You can only say things that excite a man. I thought of being gentle, but I can't hold back— I'm going all in."
Gripping her pelvis tightly with both hands, he exerted force.
"Ah... Ahh..."
Feeling pleasure instead of pain from the Master's grip on her hips, she realized she couldn't escape. Even if she wanted to close her legs, his body was already in between them, and she couldn't move her lower body because of his grip.
The tip of his big dick was snugly nestled against her loosened vaginal entrance, just barely penetrating it. Once the Master thrusts his hips, Nightingale's first sexual experience would commence.
"Ah... Master Ritsuka is serious... Truly, completely intending to engage in sexual activity... I should... run away, but... I can't summon that feeling... I'm expecting sex with the Master... Aahhh..."
At the moment she realized her own lewdness, Ritsuka, as he declared, thrust his hips vigorously.
Bam!!!
"Ah...!!"
The sound of flesh colliding resonated throughout the room, and Nightingale emitted a breathless cry. Indeed, the Master's colossal flesh spear had pierced and ravaged her vaginal opening, crushing her untouched innocent uterus.
She saw sparks in front of her, trembling as if a high-voltage current had run through her entire body.
The intense pleasure flooding her was beyond anything she had experienced before, but she hadn't yet reached the stage of full perception.
Her brain couldn't keep up with the overwhelming pleasure.
Her uterus, which had long yearned and throbbed, suddenly crushed by the penis, emitted a scream of pleasure, ironically named.
Nightingale could sense the magma-like pleasure pulsating from her lower body towards her brain.
Sweat erupted from every pore, her abdomen convulsed violently. Gushing out in abundance, fluids burst forth from her urethra onto the Master's lower abdomen.
An utterly forbidden pleasure was slowly closing in, and though Nightingale tried to stop it, her efforts were futile.
However, when one is pushed to the brink, rational judgment escapes them. Despite her typically composed demeanor, she cried out desperately in the face of the impending climax, pleading to "stop."
"Ah... Ah... Ahhh... No... It's not... I-I'm gonna... I can't... Stop... Please stop... Nooo... I-I can't... I can't take it anymore... I'm gonna... Aahhh... I-I'm... I'm... Aahhh..."
If the place had not been soundproofed, Nightingale's scream would have reverberated throughout Chaldea.
—Yet, she still didn't know.
That she would emit similar cries and moans repeatedly and be turned into the Master's exclusive pleasure toy wife...
Their affair had only just begun…
CREATORS' THOUGHTS 
Pinto_sh
Pinto_sh Your gift is the motivation for my creation. Give me more motivation!
Creation is hard, cheer me up!
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