Fully fill my mom's sexy womb part 2 (R-18)

"I'm going to cum, Kaa-san."

"Ahh~... Kaa-san, also about to orgasm... Ahh~"

Kazuki's voice was heard whispering hoarsely in her ear, as Miyuki felt his tongue wandering from her earlobe to press against the smooth white skin right on the side of her neck as her son's lips gave a strong suction in a deep kiss, marking his mother's white neck with a love mark, claiming it as his one and only.

"Aahhh~... Again~... Mhmm~."

She felt her son's lower body ready to give its last hard pounding, as she could feel her son's hot hard rod penetrating deep inside repeatedly in the depths of her womanhood until it kissed right at her needy cervix, causing her whole body to jerk in pleasure while her beautiful voice moaned loudly.

Feeling Kazuki's hard shaft twitching and enlarging, Miyuki's legs began to hug both sides of her son's body, as if blocking her son's lower body from escaping her intimate depths.

And at the same time, she pulls her son's face away from her white neck as the two begin to bring their lips together in a French kiss that is as deep and passionate as their lower bodies where her son's hard shaft kisses deep inside her tight cervix.

They kiss wildly as each wants to make the other feel better.

Before she finally feels the last hard pounding of her son in the depths of her core, as the hard shaft of his huge manhood penetrates deep into the hollow of her womanhood, kissing right at her narrow and fertile cervix.

She held her son's head in her hands as their passionate kiss continued, Miyuki's legs began to hug both sides of her son's body, pinning him firmly pulling him deeper into her body, as if trying to pull her son's hard shaft further into the depths of her cervix, claiming her pussy and womb as her own.

"Miyuki-!!!"

"Kazuki-!!!"

And then both of them started screaming in overwhelming ecstasy as they both shouted each other's names.

They could both feel her son's hard shaft kissing right on the neck of her mother's tight womb, as her fertile womb willingly accepted her son's manhood as her womb began to squeeze and press the hard shaft of her son's manhood very firmly in the folds of her tight womanhood as if trying to ask her to immediately fill it with her essence, and as if understanding the intention of her mother's womb, her son's hard shaft began to shoot his seed essence in the depths of her womanhood filling her mother's fertile womb in need.

"Huff... Huff..."

Kazuki and Miyuki finally broke their intimate kiss as both of them were panting after the violent climax they experienced.

Miyuki can feel Kazuki's hard shaft still twitching softly as her son's manhood is still releasing his healthy seed in the depths of her womb, before she feels the last puff of her son's manhood shaft as her son's manhood shaft for the last time jerks her cervix, shooting its last load.

The two lay on their sides, as they both rested their bodies after their intense session, where their bodies were sweating, their son's King Size mattress now soaked with assorted fluids from both of their bodies.

Kazuki held his mother's slender waist, before reversing the position of their bodies so that his mother was now lying on top of him.

His mother's head rested on his chest which was just below his chin as he began to caress his mother's beautiful hair which was slightly wet flowing down her smooth back, his mother's abundant large breasts resting on his firm chest emphasizing her voluptuous flesh on his son's body.

Their lower bodies still connected by his hardness still inside his mother, while his son's manhood seed began to overflow out of his mother's fertile womb, not because he wasted it but because his mother's fertile womb was too full of his sperm seed that it could no longer contain all of his excess healthy sperm as his excess sperm began to overflow out from between his manhood shaft that was still inside his mother's deep womb, as his shaft clogged the narrow slit of his mother's sweet vagina not allowing his healthy sperm seed to leak out more than it should.

Kazuki and Miyuki lay down to rest for a while after they both finally finished their long and exciting love making session.

Miyuki smiles faintly as happiness envelops her heart, her right hand begins to caress her smooth white belly feeling right at the area that seems to be filled up, she can feel that her belly now feels very full with her son's healthy milk seed, especially after she remembers how it feels as her son's big and hard shaft repeatedly injects his healthy milk seed into her mother's narrow and needy fertile womb.

At first the two of them do it in missionary position with his mother underneath him as Kazuki shoots his seed into her womb, before they switch to sitting face to face position as his mother sits on his lap where he also shoots his seed into his mother's pussy, then continues as his mother on his lap pushes his body down on the mattress before his mother starts riding him in cowgirl position where once again he fills her fertile womb.

The two begin to switch to a reverse cowgirl position as Kazuki can see the sexy figure of his mother's rear body as her sexy ass repeatedly rises and falls on the shaft of his large penis as he once again shoots his seed into her womb.

Before he gets up from his lying position as he immediately embraces his mother's body from behind and starts to make love again with his mother on his lap, but now with his mother's back facing him so that the two of them are not face to face as Kazuki starts to squeeze and caress his mother's beautiful breasts from behind as he fucks his mother hard as he once again shoots his seed in the depths of his mother's fertile womb.

The two of them fucked like a pair of rabbits in heat as each tried to convey affection and tried to give pleasure to the other.

Neither of them knew how many times they did it, and after the count of ten times her womb was filled with his child, Miyuki didn't care anymore as both of them were immersed in love and affection for each other, as both of them satisfied each other's needs and desires.

If it wasn't for the 'perfect body optimization' serum Kazuki made several years ago, even with the experience she built up and trained with her mother for several years would only be able to make her last eight times at most.

But after his body was injected with the 'perfect body optimization' serum, it was as if his body underwent a tremendous evolution where the stamina, strength, energy, density, flexibility, endurance of every cell of his body increased several times exponentially.

Even if he wanted to, with absolute control over his body, his body could be changed to not excrete any waste or residual substances anymore which would make him never have to go to the restroom again for the rest of his life.

Because his body has now been able to develop a perfect digestive system where he is able to absorb and digest all kinds of food nutrients to various kinds of bacteria and toxins in his body perfectly without leaving any residue as his digestive system converts everything into energy for his own body.

Such was the greatness of his intelligence, if it was him in the past, even if it was a few decades in the future, the serum he created would still not have been invented, as its incredible functions and abilities were like out of a science fiction movie.

In the beginning Kazuki was just a prankster when he helped Miyuki in her research, at that time her mother was trying to research a prescription health remedy for erectile dysfunction or male impotence that was felt to be similar to 'Viagra', which then made him accidentally dive too deep into human biology research that he unknowingly created the 'perfect body optimization' serum.

It was ultimately not published by Kazuki and his mother because the effects were too advanced with the current technology, which could endanger them both when someone with evil intentions targeted his mother's company and his family.

Since Miyuki can be said to be a genius in her field, she graduated from the University at the age of twenty-five with a Ph.D in three fields namely Biology, Physics, and Chemistry.

During college, Miyuki founded a Pharmaceutical Company which she named Akatsuki Pharmaceutical Company after their family name, Akatsuki, and now her company has become one of the largest companies in the field as well as a pioneer in the field of health after various drugs and medical devices developed by her company became one of the best and well-known products in the field, until her mother's company was recognized worldwide and even entered the Fortune 500 list.

"You know Kazu-kun~, with how much you filled my fertile womb with your healthy baby seed, I'm sure it's not impossible for me to get pregnant again, especially now that I'm no longer using the contraceptive products we developed before~." Miyuki said seductively to Kazuki as her eyes were still gazing lovingly into her son's eyes when one of her slender fingers formed a seductive circular pattern on her son's airy chest.

"So, if you don't use one of our contraceptive products within a few hours to a few days, you're almost 100% sure that you'll get pregnant with your child again~."

Kazuki wanted to say something, but decided against it when he saw his mother's loving gaze. Although having another child at such a young age still made him a little strange, Kazuki did not reject his mother's ideas and wishes.

Especially when he remembered how Miyuki's cheerful and happy smile as she raised herself together with her twin brother, or even their five-year-old little sister, how she accompanied, cared, and looked after all of them even when she was busy.

Knowing that, Kazuki lifted Miyuki's chin, before his hand cupped Miyuki's jaw to his cheek lovingly, Kazuki only answered his mother with a smile and a small nod that made the smile on his mother's face bloom beautifully as she felt happy with his approval.

Before Kazuki gave a short and light kiss on his forehead, both eyelids, and then on his mother's sweet lips, as the two looked at each other as if trying to convey their affection through their gaze, the two momentarily enjoyed their moments of togetherness.

After a love-making session of approximately five hours, even Kazuki and Miyuki who had spurred their bodies with the optimization serum still felt quite tired, the two took a break to enjoy their time off to relax, as the two gazed at each other affectionately.

Looking at the clock that showed the time was approaching morning, finally Kazuki reluctantly turned Miyuki's body back underneath him, before Kazuki slowly pulled his big and hard shaft out of his personal sheath or his mother's lush and fertile lower lip cleavage.

"...Aahhh~... Oh no, don't pull it out... or... Ah~... It hatches out... Ahh~."

A beautiful moan escaped from Miyuki's lips as the look in her eyes showed a hint of panic and disappointment as she felt her son's big rod start to exit her womb through her lower lip, a painful emptiness was felt in the depths of her core as Kazuki's rod left her womb, making the slit of her lower lip that was previously blocked by her son's big rod become slightly open so she immediately tried to forcefully close the slit of her lower lip again.

However it proved to be a little difficult as it was a little painful, especially when she could see how her lower lip was reddened and looked a little swollen due to the brutal activities performed by the two earlier, making her forced to manually plug her lower lip with the fingers of her slender right palm covering the crack of her lower lip to prevent her son's sperm seed from escaping any further.

However due to the accumulated fatigue, Miyuki was temporarily unable to wake up from her sleep so her body was in a curled up position like a baby while trying to close her lower lip to prevent her son's sperm seed from being wasted.

"We'd better take a shower and clean ourselves up, Kaa-san. Since it's already morning."

Kazuki smiled seeing the careless behavior of his mother who tried to plug his lower lip, Miyuki loved his sperm seed so much that she didn't want to waste every drop of his healthy sperm earlier, besides being obliged to release it in her womb, his mother also didn't allow him to release his sperm seed in other places or other body parts, the only other place allowed was his mother's mouth who would drink his healthy milk until it was finished.

Miyuki who saw the smile on Kazuki's face was somehow bothered by that, especially when she felt the emptiness in her core which was a little painful as if it was not perfect without her son's big shaft inside to complete it, moreover it made her spill a little of her beloved milk seed from inside her womb which resulted in her fertile seed almost being wasted.

But knowing that it was already morning, Miyuki forgave him a bit, and when she wanted to try to move her body, the energy that came out of her body as it was still drained by their previous brutal activities, so she sulked teasingly to her son.

"Moo~ Kazu-kun, you brat! Why did you pull it out all of a sudden! It made a little sperm seed wasted!" Miyuki said in a teasing voice as she seemed to sulk playfully, before she added with her shamelessly stupid smile. "But since your reason is good, I'll forgive you, but as a punishment now take me to the bathroom and don't forget to give me a good bath! You have to be responsible since my body is sore and tired from our wild session earlier! Hmph~."

"If that's what dear mother wants, Kazuki will do anything!" Kazuki immediately answered her, before he immediately pulled his mother's body right on his lap, because Miyuki was a little surprised because the sudden movement of her son lifting her made her scream a little. "Kyaa!"

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