Super Genius Magical Girl, Stretching Exercises for Growth (5)

***

『Mutation Progress Rate: 49.6%』

“You should know your place. I’ll make you clearly understand who underestimated whom.”

“Hwaaaah… More, more…”

How much time had passed? The hazy steam, mixed with a sweet liquid, turned a pale cherry blossom color.

Each time Doctor’s dick, liberally spread with aphrodisiac, moved back and forth in her delicious-looking vagina, Ciel’s 『Aphrodisiac Poisoning』 and estrus symptoms, which she thought were at their end, did not subside.

The air mattress, soaked with cum infused with magical power and sticky love gel, had semen overflowing from it that couldn’t be contained in Ciel’s small womb; yet, as if the two were not tired, they changed positions again.

Jjigeugeugeuk-

“Heung-eueueung♥”

“You’re flexible… Doesn’t it hurt?”

Doctor stood up, hugging Ciel in a lifted penetration position, while inserted.

However, because he immediately lifted her up in a doggy style position where they weren’t facing each other, all Doctor could see was Ciel’s smooth back.

All Doctor could hold onto were Ciel’s two arms, a situation where he was truly supporting Ciel with just his dick.

Even if Ciel held onto Doctor’s thighs to support herself, a great catastrophe of her breaking would occur soon.

Ultimately, Doctor used the nanomachines mixed in the bathtub water, creating temporary, transparent tentacles, wrapped them around Ciel’s upper body, minimizing the burdensome weight.

“Eung, it’s actually good because it stretches… Hnyaaaang?!”

“…It’s a problem if she’s too much in heat. Her prim and proper side has disappeared.”

The problem was that instead of the usual Super Genius Magical Girl Ciel, she had become a bitch.

Doctor should be the one taking away her magical power.

Conversely, with the forced stamina consumption and tightening, and the strangeness that made his mind go blank, Doctor composed himself and maintained his pace.

“The fucking sensation is the best, but… it’s not necessarily a good position.”

On the other hand, the only thing to gain from this position was that Ciel’s face, hidden by her disheveled green hair, looked attractive.

The insertion depth had become extremely deep, to the point where her cervix, touched by his glans, squirmed… Well, even in a normal position, it had reached the end, though.

“Is that so… It’s tingly and good… It feels like Doctor is touching me.”

Thanks to being connected to the automatically heated bathtub, the nanomachine tentacles, made of warm water, half-enveloped Ciel, allowing her to once again enjoy the beauty effects she had experienced in the bathtub.

Her head was in a flower garden, and when Doctor thrust his hips, her body, pickled in aphrodisiac, twitching and trembling, was undeniably a female.

‘To call her a female… her body was far from enough, though.’

Jjiik─

“Hnyaaaaaaaaaat─♥♥♥ Doctor, if you squeeze now…”

“Since you did gymnastics, waste products should come out, shouldn’t they?”

‘No, that’s not necessarily it. Since I liked it…’

『Breast Milk Constitution: Constant Activation has been added.』

『Your magical power is converted into breast milk. The amount of magical power exiting as breast milk increases.』

The nanomachines turning pure white.

As Doctor moved the nanomachines like a compression plate, breast milk was squeezed from Ciel’s crimson nipples.

Unlike last time, it didn’t contain ingredients that extracted personality, but was top-grade breast milk, condensed with Ciel’s pure magical power and nutrients.

“This makes her just like a dairy cow. Though not at all in size.”

“Nooo… I’m not a dairy cowww…”

Pangpangpangpangpangpang!!

His dick, thrusting wildly, was violent until just before ejaculation.

Each time he fucked Ciel, who was floating in the air, the vulgar sounds of flesh and water slapping together echoed throughout the bathroom.

Just from the breast milk being squeezed, even though she felt like she would faint from the pleasure that had already far exceeded her limits, each time the dick, throbbing hotly inside her vagina, poked her cervix, she reawakened and came to.

『Mutation Progress Rate: 49.9%』

‘My body, it’s strange…’

‘My head and… the back of my waist are hot…’

『Corruption Desire rises from LV4 to 5.』

『Warning, Guardian Force is corrupted.』

‘….Huh?’

As she turned her head to look at Doctor at the start of the change, Doctor muttered with a joyful expression, “So it was the heart after all…”

At having corrupted the captured Magical Girl, and first, at having succeeded in modifying 『Brand of the Devil』 created by Halo to his own style, he couldn’t help but truly rejoice.

『Mutation Constitution』 is a skill created by Halo for Magical Girls.

If the progress rate exceeds 50 percent, it’s a skill that allows them to break free from the Star’s Protection and become another being.

For several days, even after repeatedly ejaculating into the forcibly ovulated eggs in her womb, the progress rate, which hadn’t risen past 49%, began to climb.

It was all a coincidence.

Having been caught doing the gymnastics she didn’t want to show anyone, an error in the nanomachines caused by her enraged emotions resulted in the birth of a Ciel whose boundary between brainwashed assistant and Magical Girl had become blurred.

“Doc-torrr… If you thrust like that… I, I’ll…”

“Hmph… Kuhuhuhu…”

‘…Perhaps I’m going crazy too.’

The biggest factor contributing to Doctor’s laughter was that it was related to Ciel’s heart.

As 『Emperor』 Sekhmet had said, he had put forth the hypothesis that the heart might be an important factor in raising the progress rate.

Not a fake heart created by brainwashing, but Ciel’s true feelings about Doctor, that if her affection for Doctor grew stronger, it could rise.

Encouragement and acceptance she hadn’t felt from her parents. Even if it was a false memory, it was no different from how he treated the brainwashed Ciel.

Furthermore, now, Doctor’s attitude towards Ciel, not as an assistant, was also identical to the actions of the man imprinted on Ciel.

“Hi, hik, heuk, kkeuhaat…♥”

Doctor, thrusting his hips with a self-deprecating laugh. As if the deepest pleasure was rising, he grabbed Ciel’s waist and shook her wildly like an onahole.

Clinging tightly to her small breasts, as breast milk was squeezed out like a dairy cow, and as the entrance to her womb was knocked upon, Ciel screamed in ecstasy.

Her vagina, full of female juices… no, full of semen, showed no sign of emptying, yet her vagina, with the same elasticity as at the beginning, stimulated Doctor’s urge to ejaculate, which felt like it would burst.

Each and every fold of her vaginal muscles, each and every lewd protrusion clinging to his already sensitive shaft, intertwined lovingly.

His dick, already covered in a mess of cum, pre-cum, and juices, once again throbbed, preparing to spew out semen.

Kkul-leok, kkul-leok-kkul-leong…

Perhaps because her body was half-raised and tilted, whitish fluid poured down with a pattering sound.

As ejaculation began, Ciel, wanting to writhe her body at the surging climax, unconsciously relaxed her tense lower abdomen,

Kkurururururururuk─!!!

She received the semen that had truly begun to burst out with her entire body.

“Ok, oguk?!”

Flashes of light flickered before her eyes, her thoughts repeatedly stopped and started.

Her back arched like a bow. Breast milk leaked through the nanomachines. White streams flowed fiercely from both above and below.

Her lower abdomen, more swollen than before her thoughts stopped. Originally, when she swallowed Doctor’s ‘thing’, it would swell up in the shape of a dick, but now it was so round and swollen that one could believe she was in early pregnancy.

“Ah, I, I’m, I’m, I’m coming againhaaaak…♥♥♥”

『EXTRA: Mutation Constitution is activated.』

『Mutation Progress Rate: 51%』

『Mutation begins.』

“Hoo… I’m going crazy.”

Rather, as if his energy had been drained, Doctor’s legs trembled, and he knelt on one knee.

And with a ticklish sensation in part of her body, and the feeling of something surging out, Ciel’s consciousness was cut off.

…….

“Take responsibility.”

“I intend to.”

All she had worn in the workshop was the Magical Girl uniform made from magical power, so Ciel borrowed Doctor’s gown while her depleted magical power recovered.

Although 『Blessing of Contraception』, the Magical Girl’s last bastion, hadn’t been deactivated yet, Ciel, whose estrus had subsided and who had returned to her senses, as if she was thoroughly enraged, grabbed Doctor by the collar and shook him.

“Are you kidding me?! How am I supposed to live with something like this attached to me~!!”

“It’s small and cute, just like your breasts, so what’s the complaint? She was quite cute, the Magical Girl begging for stretching exercises─”

“Aaaaargh!! Erase it! Erase it from your mind right now~!!”

Yes. Horns had really grown.

Emerald-colored horns, resembling her hair and eye color.

Fortunately or unfortunately, wings hadn’t grown, but just above Ciel’s tailbone, a tail, straight and extended as if representing her current anger, with a heart-shaped tip… Anyone could see she was a Succubus, one of the Klaus Tribe.

“It seems she can’t transform into a male like a regular Succubus… That’s a relief.”

“I said it’s not a relief?! I can’t feel my usual magical power~! What is this murky, dark magical power?”

“Now I can finally tell you… all the truth about the Guardian Force.”

As the Mutation Progress Rate exceeded half, the changes became clearly visible.

Ciel was no longer a Magical Girl, nor was she a complete Succubus… yet.

Perhaps if the progress rate increased further, she would completely break free from the Guardian Force, and be liberated from her harsh fate.

“Before I invaded the workshop, there were records of you hacking into the Tax Evader Containment Facility’s information.”

“…What does that have to do with anything now?”

“Don’t be sulky. Because it’s a reason to accept the current changes positively. You’re a super genius, so you remember, right? The file called .”

Because Doctor had attacked, she couldn’t bring herself to check the content of the file, only seeing the title. Only then did Ciel, who had been standing on tiptoes and pulling Doctor’s cheek, seem to calm down a little.

“Ciel, the story I’m about to tell you now is the unvarnished truth. It’s also a way to save your precious team, so… I hope you listen carefully.”