From then on, Kazuki continued his slow piston motion, interspersing it with deep thrusts at key points, driving Rias to the brink of insanity…
"Ohff~!! Ugii… Ohff! Aoooonnn!!"
As the piston movements gradually intensified, Rias's pleasured cries grew louder.
"Nnaaahhh! Kazuki's is hitting deep inside... nnn, it feels so good!!"
"Rias, tell him clearly what feels good."
"Nnaaah! It feels super good when my pussy's depths are being grinded by Kazuki's huge cock——!!"
Tears and drool flowing, Rias, intoxicated with pleasure, screamed. At that moment,
"Now, Rias, tighten your pussy more. Put strength right here!"
Saying this, Venelana inserted a finger into Rias's asshole and twisted it firmly.
"Ohohohhooooooouuu!!"
As her anal sphincter tightened sharply, Rias's pussy clenched down on Kazuki painfully tight.
"Guoooohhh, I'm going to cum, Rias!!"
"Aaaaah! Cum, Kazuki, fill Rias's pussy with your thick, hot semen—!!"
Splurrrt!!! Slurrrp! Bvrlrl! Squirrt!!
Unable to withstand Rias's unprecedented tightness, Kazuki came in instantly. The hot, viscous fluid spread against Rias's cervix, causing her body to shudder violently.
"Ah, o, oooooooooohhhhhhhh…"
Amid the deep pleasure, Rias went limp…
As Kazuki slowly withdrew his cock, a torrent of milky-white fluid overflowed from Rias's vaginal opening.
"My, my, to have ejaculated so much even for the third time…" Venelana checked on Rias and her cum-spurting pussy.
His mind hazy, Kazuki swallowed hard as he gazed at Venelana's voluptuous buttocks. She was turned away from him, clad only in her underwear.
'Lady Venelana… she's wet—?'
The crotch of her purple panties had darkened. Witnessing this proof that Venelana had become aroused from watching their lovemaking, Kazuki's freshly spent cock rose once more, thick and proud.
"Kyah!? K-Kazuki-san!?"
Before he knew it, Kazuki had pulled down Venelana's panties with a plop. Her voluminous buttocks, even more ample than Rias's, were exposed, revealing everything from her slickened privates to her rear hole right before Kazuki's eyes.
Venelana's nether region was clean and perfectly shaved, offering a clear, unobstructed view. Her darkened labia were parted wide, dripping with her sweet nectar.
Staring directly at this experienced, married woman's pussy, so different from the women he had been with, like Rias or Akeno, Kazuki felt a twinge of something grotesque, but an abnormal excitement overwhelmed him, and he buried his face in it.
"Ohoh!? Nnn… Ahh, no, Kazuki-san… Nnnn! Ahh, nooo…!"
Placing his hands on her generous buttocks and spreading them wide, he ran his tongue from her slick labia all the way to her anus.
A pungent, stimulating scent tickled his nose, but Kazuki was lost in his fervor, licking and tasting every inch.
"Hohyi, hyiin! Stop it, Kazuki-san! Not there… Nhyii, it's no good… I shouldn't… D-Don't…!!"
Splaaashhhh!!
The moment he thrust his tongue into the small, hidden pucker, Venelana's body arched sharply, and she squirted her love juice.
'You gotta be fucking kidding me… Did I just climax from him licking my… asshole? But… It's been years since I've felt anything this good…'
Collapsing next to Rias, Venelana let out ragged breaths. But it was far from over…
Aroused, Kazuki Fuwa rubbed his hardened, thick cock against Venelana's drenched slit.
"Nnn! Aahhh..."
A hot sigh escaped Venelana's lips at the feeling of his rigid flesh rubbing against her swollen lips.
"…May I insert it?"
"Fuaahhh… N-No, Kazuki-san… I'm a married woman! And Rias's mother!! Such a thing cannot be allowed…"
"But this part of you isn't saying that, Lady Venelana."
A wet, schlicking sound echoed in the room as the tip of his dick knocked against her vaginal entrance.
"See? It's crying, 'Put it in, put it in'."
"Yan! No, no! You mustn't put it in, no…!"
Even as she said this, Venelana's hips moved unconsciously, trying to swallow his dick.
Seeing this, Kazuki pressed the head of his glans against her entrance and then stopped moving.
"Ahn!? Kazuki-san, why…?"
Venelana whimpered, sounding anxious.
"Because you said no, right?… I won't move. If you want it, you'll have to insert it yourself."
"Ahh, how could you… Kazuki-san, you're so mean…!"
Panting heavily with excitement, the MILF furrowed her brows.
…
Venelana Gremory had been in a sexless marriage since Rias's birth nineteen years ago.
Perhaps due to their long lifespans, devils inherently had a low birth rate. This became more pronounced with each rise in rank, and it was said that among high-class devils, having even one child born every few decades to centuries was considered good.
Perhaps because of this, the entire devil race's libido had gradually declined, and even among married couples or lovers, the frequency of sex had drastically decreased.
Though there were still those with high libidos, perverts, and scum who sexually toyed with other races or lower-class devils.
---Digression over.
Venelana's husband, Zeoticus, was a man indifferent to sex. Though they had been together as husband and wife for over a thousand years, they had joined bodies less than a hundred times.
After Rias's birth, all sexual relations between the couple had ceased. Perhaps because she used magic to maintain her physical age around twenty, Venelana's libido was just as vigorous as it had been in her youth.
Since giving birth to Rias, she had been left with pent-up physical desires, spending her days pleasuring herself alone.
It was during this time that she heard rumors among the maids about Kazuki and Rias engaging in intense nightly encounters.
Venelana's interest piqued, and taking advantage of her husband's absence at a meeting tonight, she had come to secretly watch.
Their sex was wild, fueled by youthful passion, but Venelana feared that such forceful intercourse might eventually become routine and lead to a sexless relationship like her own.
She decided to impart a little education to the two of them.
While the guidance from Venelana had improved their techniques, she found herself unable to forget the brief taste of Kazuki's cock in her mouth.
The flavor, scent, hardness, and heat stirred desires Venelana had nearly forgotten, setting her body ablaze.
'---Ahh, what should I do!?'
Venelana agonized over whether to succumb to her carnal desires and give herself to Kazuki or to maintain her reason and reject him.
As she wrestled with her thoughts, Kazuki Fuwa whispered close to her ear.
"It's alright, this is just 'education.' You are merely personally 'educating' an inexperienced guy like me. Isn't that right?"
Kazuki's devilish whisper tickled Venelana's ear.
"Education... yes, that's right...?"
"Exactly. Besides, being true to one's desires is the essence of a devil, isn't it? Then it's fine, isn't it? To be honest with your desires."
"Be... honest with my desires..."
"Yes. Don't you want this? If you, Lady Venelana, would just say the word 'I want it'... you know what happens next, right?"
"Haaah, uun... You're sly, Kazuki-san~!!"
Unable to withstand Kazuki's sweet whispers and the heat of his member pressing against her entrance, Venelana finally uttered the forbidden words.
"I... I want it...!"
Responding to the faint whisper, the mature woman had managed to force out, Kazuki pushed with his hips, slowly entering her MILF, wet, soaking pussy…
__----______----__________----_________
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