Saimin Regulation

Extra Arc 1: Protagonist Feminisation-Arc

Author Note:

This is the Extra Arc chosen by the questionnaire.

Did you really want this, you guys!?

I believe the plot summary is that Book, who summoned gods wrath, was turned into a girl.

When I got up in the morning, I felt an awful sense of discomfort in my own shoulders.

Getting up from the bed in my room, I tried to change into my uniform, but felt a discomfort from the pants I tried to remove not getting caught on anything.

And then, with that discomfort as the trigger, I tried to examine my own penis.

I cant see it

In doing so, I understood that I couldnt examine it because my view was blocked by two bulges in my chest.

Desperately trying to understand the situation, I leaned over with my half-asleep body as though to peer into my own pants.

It was only then, when I realised that an astonishing situation occurred to my body, that my brain awakened.

Its not there.

Yes, it wasnt there.

My penis wasnt there.

What was there was a crevice that was completely different from a buttockssomething that I had seen many times before.

Kokoro!

Yes, Master.

Kokoro was such a convenient slave for immediately coming to my side the moment I called her.

While emphasising my chest which had become heavy, I complained to Kokoro.

Its not there, its not there!

Not thereyou say?

My peen.

With a blank look, Kokoro tilted her head and fell silent.

I also began to notice that my voice reaching my ears was awfully high.

Within those few seconds, my head woke up and reached a certain conclusion.

I headed to the bathroom with a mirror in a rush.

Just what in the world

While placing both hands against the mirror with a *thud*, I stared fixedly at my torso reflected in it.

There was a face that, despite making a slightly bad expression, was exquisitely arranged for placing into a trance and stripping, her slightly rough-cut hair hanging over it in a long hairstyle. The breasts were modest, but the slender physique firmly depicted its feminine lines.

This was me.

Master~?

You, you know that this is me?

I asked Kokoro while touching my cheeks as though to confirm it with a *tap*.

Once again tilting her head with a dubious expression, Kokoro smiled bitterly.

Has something changed?

Ive become a girl, you know?

Just what does this mean? Was this woman unaware of my transformation?

Maybe, some other kind of hypnosis has malfunctioned. If so, then itd be troubling. I need to find the root cause.

well, whatever. For the time being, bring me my change of clothes.

Yes, certainly.

My shoulders and head are heavy. Although I dont dislike women with big breasts and long hair, to think that they would come with this much of a burden.

Suddenly, I gazed at my breasts that I had become curious aboutI tried to grab it with my right hand for a bit.

Nnaah

A strange voice came out. How disgusting.

Even though my voice had also become that of a womans, I ended up getting disgusting goosebumps.

Master

Kokoro skillfully brought me my change of clothes. Her cheeks were awkwardly flushed as she averted her eyes away from me.

To my shame, I was witnessed groping my breast and gasping by myself.

How unbelievable

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Kokoro.

aaAh! M-Master, thats

As though confirming it, I strongly groped Kokoros chest.

Ok, my libido is normal.

As usual, Kokoro became horny just from having her breasts groped, becoming pigeon-toed as she shivered.

That being said, since the current me doesnt have a penis, I dont know how to help her resolve that.

Im going to brush my teeth. Change my clothes.

Yes

While I faced the washroom, Kokoro dressed me from behind.

I guess it was about the time that I finished brushing my teeth while occasionally stretching my arms and lifting my legs.

ihh, hyaah!

It was my voice.

As though aiming for the instant that I had finished brushing my teeth and changing, Kokoro groped my breasts from behind.

A tingling sensation akin to electricity ran down the middle of my chest, causing me to make a strange voice.

Master

what are you doing?

Ummy apologieshowever, Im so lonely

It would appear that Kokoro gropes a girls breasts when she becomes lonely.

No, I get that I made her horny just a short while ago. I am also aware that I was doing something akin to masturbation.

However, currently I was more worried about the mystery of me being in a girls body.

Oi.

Master, here.

What arehyaah!?

Kokoro suddenly stroked my lower body with her index finger.

Kokoros beautiful flingers slipped through my unobstructed crotch, causing a ticklish stimulus to be transmitted from my crotch.

What is this? Even though I dont have a penis, the stimulus is contrarily stronger.

Although it may seem impertinentI believe that it is not good to endure it

Kokoro, cut it out alrea-aah, ah, kyahn!

A girls voice. A voice far different from my own came out from my mouth.

Since my body has changed, its only natural that my voice would also change, but the reality that I was letting out such a voice was humiliating.

While directing her feverish eyes towards me, Kokoro became slightly out of control as she stroked my entire body.

Although I instantly became pigeon-toed and tried to run away, my thighs were stroked from beneath, and so I lost my strength as my crotch spread open.

I cant run away. I was convinced of that.

In that case-

I get it.

Masterthank you very much.

Come on, lets do it already.

Kokoro clearly smiled as she joined hands with me. I guess that means well go to bed all buddy-buddy together.

After returning to my room, I tried to push Kokoro down as though it were a matter of fact, and noticed a rather troubling matter.

Because I had become a girl, even my strength had become weaker, huh?

Masterah

For the time being, I pushed Kokoros body so that she lied on her back, and roughly removed her pajamas.

As per usual, I forcibly grabbed Kokoros chest and groped it.

Kokoro was firmly in heat like usual, remaining passive as she left things up to me. Ok.

I was somehow relieved at the reality that I was on top. After all, Kokoro is my slave.

When I belittled her like that, Kokoros hand suddenly moved.

Hyaaaaaaaah!!

Master?

Kokoros hand gently rode atop my two swollen breasts and groped them.

From that alone, my body received a numbing stimulus.

Damn, what is this?

So as to endure the pleasure circulating through my entire body, I clenched my teeth.

FufuhMaster, Master!

Hyahstop, stop it!! aAAAh!!

I wonder what Kokoro thought as she groped my breasts even stronger with a smile as though looking at her loved one.

Of course, my body that was trying to endure it broke down, my shoulders moving up and down as though trying to engrave the same rhythm of my heartbeat.

L-Lets play together!

In order to forcibly calm down this situation, I stated Kokoros Hypnotic Keywords.

Indeed, if its with Master.

Kyauh!

Its no good, the Hypnotic Keyword didnt work.

Originally this suggestion had many conditions put in so that it wouldnt be triggered by accident. From the point that my voice changed, even if I spoke the right words, my voice no longer caused the trigger to engage.

Kokoro placed her own large breasts against mine, rubbing the two bulges together as though kneading dango.

Masters body..is so very soft.

Hyahaah! Dont rub them!

A torso-pulling pleasure rushed through my body every time the shape of my chests were crushed. I ended up understanding the shape of each of the soft breasts better from them being smashed against each other.

Soft skin was pressed against soft skin, that movements that made me melt even now shook my senses, clouding my head.

Before I knew it, my breathing had become heavy as I became desperate to suppress my flushed body.

Mastahaah

Nnah, stop, I cantdont pullmmmmmmgh!!

No matter how much I endured it, my body couldnt suppress it.

Pleasure that numbed the whole body spread from my chest to my heart, and then to my brain. My body convulsed, and my lower abdomen started to heatedly undulate.

As love juice overflowed from my vagina, as though leaking urine, I reached climax.

Haahhaah, Kokoro, this shameI will never forgiveyou hear?

Yesit has yet to endsommh!

It appears that Kokoro, who also similarly reached climax, stole my lips from above after looking at me with eyes more feverish than usual.

Without being able to satisfactorily move my body due to the afterglow of climax, I had no choice but to accept those lips like a baby sucking on a breast.

As I swallowed the strange air filled with the odor of women mixing together, strength ended up filling my *tingling* vagina.

The same was true for Kokoro, our love juices moistening our crotches as our mucous membranes rubbed against each other.

Stopany more than thisno more-

MasterI am honouredcompletely.

Even though Kokoro should be receiving a pleasure similar to, if not even more than me, she continued to move her body strongly.

Getting onto her knees, she showed me an item that I had no idea where she got it from.

I forgot to blink in the face of that shocking object.

Whawhat isthats?

Its a dildo that can be inserted in from both sides. Its much smaller than Masters original member, thoughnngh.

Kokoro prepared a dildo that I didnt know about.

The item that had large parts mimicking a penis on both the front and back was first inserted into Kokoros vagina.

While closing her eyes, as though to show it off to me, Kokoro equipped it on her vagina in a manner akin to inserting a tampon.

Oi, oi.

But, with this, I can take Masters first time, right?

Stop smilingtheresh noh wahy thatll fit

Just where did she prepare such a thing? Such a thing shouldnt be necessary for you, to say nothing of you being unable to use it due to being unable to masturbate from the suggestions. Just what are you anticipating by having that?

I desperately pulled back my numbed body.

Its impossible. I want to run away.

In the first place, theres no way thats gonna fit in my vagina. What are you thinking of doing without any prior notice? Thats such brutal conduct that doesnt think of the female body.

Why does Kokoro look so happy? Shes painting the lotion with a grin. Is this woman that happy to be the first one to fuck me?

Im coming.

KahaaaAAAAHH!! Aaahkahah

A hoarse breath leaked from my throat. I hesitated to even breath due to the pain.

I could perceive the feeling of a foreign body entering inside of my body from below my belly. A feeling of oppression akin to that of having my lungs grasped was received by my body, my instincts refusing to remove my body.

Without being able to resist, I could do naught but stiffen my body.

Looking down upon such a me from below, Kokoro began to move with a smile.

Mastersfirstaaah.

Stopituuh.

Once the foreign object entered up until the depths, it was*schlick*pulled out.

While bathing in the sense of release that was akin to excretion, the head of the foreign object rubbing against the insides of my vagina granted me stimulus.

And then, Kokoro took the foreign object that was pulled out once and inserted it even deeper.

Aah, aah, kyaah!!

Kyahaaaaahhah, haahaaAAGHAGH

Is it still in? Whats going to happen to this body?

Kokoro unreservedly inserted the foreign object until it was deep inside, not stopping until our vaginas brushed against each other.

I willmove, ok?

S-Stop it, alreadyaaAAAAAAHH!!

Kokoro slowly drew back her waist before slamming it against me.

It was pumping. The thing that I would normally do, Kokoro was returning back to me.

It was the forcible kind that crumpled and bashed the stimulus I felt earlier. While bestowing a searing pain to the insides of my vagina, a different stimulus was also given.

A tingling, numbing pleasure was transmitted from my lower abdomen to my whole body. I got goosebumps as my nipples and clitoris became erect.

MasterMaster! aaaaAAH!

Aaahkyaah, AaaAGHGAAAAH!!

Kokoro aimed at those erect nipples, and ran her tongue all over them. Sucking on those breasts like a baby, she stared at me with moist eyes.

Just like a doll, I was unable to move, and so could do naught but raise my voice with my mouth gaping open.

Mm, ah!!

Mmmmgh!!

Unable to stand watching me like that, Kokoro kissed me as though to seal my opened mouth.

While feeling relief at such an act, I shed tears at such humiliation.

Even so, the lower abdomen changed even that into stimulus, causing further pleasure to flow into me.

Im at my limit.

If any more than this is done, then Im gonna go crazy. While receiving sensations that seemed like that was possible, the insides of my head seemed as though it was about to go blank.

Master, Master, Im going to cum right now!

S-Stop, noo-aaaaaaaaaaaahhh!!

While a *blinking* light flashed in my head, my entire body convulsed. It seemed as though my consciousness was about to fly away.

A large wave crushed my emotions, and I continued to scream as though to spit that out.

Kokoro also similarly raised a shriek as the two female voices rung inside the room.

Its likely that we climaxed.

Haahhaah

Aah

Kokoro, who lost her strength, collapsed on top of me.

Our chests were crushed, bestowing me with a soft afterglow.

And then, finally, the vibrator inside of us slipped from the love juice and fell onto the floor.

damnit

I cursed this sweaty bodythis humiliatingly pathetic self.

However, it was already over.

While I have the chance, I

Master.

S-Stop

Ilove you.

Whispering in delirium, Kokoro hugged me.

I was unable to peel her off with this body that I couldnt put strength in.

And then, Kokoro once again slowly tried to pick up the vibrator that fell on the floor.

While still pale, all I did was shake my weak legs.

Author Note:

Books body returned to normal the next day, but as for what happened to Kokoro-chan after that

TL Note: The authors twitter account has pictures related to this episode.

Genderbent Book

Source: /aitoyoku/status/1068141560716439553/photo/1

Book: Haha, as I thought, playing around like this is the most fun, isnt it?

Source: /aitoyoku/status/1068141560716439553/photo/2

Book: S-Stop it, Kokoro! Dont come any closer!

Source: /aitoyoku/status/1068141560716439553/photo/3