The Tail That Never Leaves
The Master, having wrestled with Tyriel and barely managed to send it back into her belly, slipped on a pair of panties that split open at the crotch, leaving her pussy completely exposed. She paired them with black stockings and a garter belt, then added a short skirt that barely covered her hips. For her top, she chose a cropped shirt that revealed her slim waist and emphasized her full, heavy breasts. With half her yin crest visible and the thin strings of her panties tracing the alluring dip between her lower belly and pelvis, the outfit was utterly obscene.
Whoever this was meant for, it was an incredibly lewd fashion choice.
“Yes, QA.”
Mother called for the Master once she was fully dressed. As soon as the Master approached, Mother slid her tail straight into the exposed pussy between the split panties. The Master flinched and let out a soft moan, but then calmly draped an elegant overcoat over her shoulders as if nothing had happened and spoke to me.
“Let’s go to my lab.”
“You have a private laboratory?”
“I do. I’ll explain on the way.”
Even in heels, the petite Master turned to Mother and told her they were heading to the lab. Mother paused for a moment, her tail still moving inside, then finally answered.
“Wait, I’ve been wondering this for a while… why do you keep your tail inside her pussy all the time?”
I had assumed it was just teasing, but the fact that she even moved it while they walked together didn’t make sense to me, so I asked.
“Ugh, you’re the one who told me to do that!”
The pussy currently being stirred by Mother’s tail was soaking wet, dripping love juices onto the floor in steady drops. Every time the tail thrust deep and pulled back, more fluid spilled out and soaked the ground.
Ah, so the Master produces a lot of water too, just like me.
Mother pulled her tail out with a wet pop and headed for the door.
“See you next time.”
Mother disappeared, waving her glossy black tail still slick with love juices. She usually slept inside the same coffin I had first seen her in. When I asked why she slept in a coffin, she said that after being sealed inside one for so long, the coffin felt familiar and comfortable… I thought she should have grown sick of it, but that was just how Mother was.
Meanwhile, the moment Mother pulled her tail free, the vital energy she had pumped inside caused the Master’s legs to tremble as she squirted.
“Hiiit, mmmh…”
“Master, get a hold of yourself.”
I held her quivering body as she moaned with a completely fucked-out expression and sucked out the vital energy that QA had stirred up inside her womb. How mischievous, to fill her up and then leave.
After trembling violently for a long while, the Master finally calmed down and spoke.
“Haa… even though we’re close, QA really takes her jokes too far.”
“She must have been lonely for a very long time without any friends.”
Mother had slept for countless years, and even after waking up she was immediately brainwashed as a test subject and spent her days being experimented on in the lab. She had no one she could call a friend. I was her daughter, so calling me a friend felt awkward.
I carefully wiped the Master’s pussy, which was a complete mess of love juices, and straightened her disheveled clothes. The Master accepted my service naturally, took a deep breath, and said,
“I’m calm now. Let’s go.”
“Yes, Master.”
I followed behind the Master as she led the way and reported everything that had happened on the surface. When she heard about Rico, she reacted immediately.
“Rico said he would reduce his own sexual function?”
“Yes. He even said he won’t take off his chastity belt anymore.”
“But if he goes that far, having a baby later might be… he’s already so weak.”
Watching the Master hesitate while thinking about having Rico’s child, I spoke firmly.
“Who did you say would manage your body, Master?”
“Kyubey would.”
“The children you give birth to, Master, will be conceived from the seed I choose. I will make sure you bear children from the finest seed.”
The Master was going to become the ruler of Eden. I believed she should have a partner and children worthy of that position.
“Isn’t that a bit too much? The baby should be with the partner I want…”
“Should the future ruler of Eden really conceive a child from a weak male like Rico? Even Rico himself has accepted this, so please accept it as well.”
Since Rico’s education was already complete, all that remained was to convince the Master. She could continue to love Rico, but the children would be born from the seed of a strong male.
When I pushed strongly, perhaps because Mother had trained her well, the Master showed a noticeably weaker attitude. It felt strange, like the situation had completely reversed from when she used to handle me in the past.
“You can keep loving Rico as you are. It’s only the children that will be made with the partner I choose. To produce a proper heir, the male must be someone who matches your station, Master.”
“Ugh, that really makes me sound like breeding livestock.”
“Ah, so that’s how you feel? Hehe, would you like to truly become livestock?”
“Kyubey, you’ve changed too much!”
“You’ve changed a lot too, Master.”
The Master pouted, but she no longer resisted my words. I thrust my tail into her complaining pussy and stirred it around until she fell silent.
“Both you and I will live forever now, Master. We must properly prepare our foundation. The children you give birth to will inherit Eden after us. To live comfortably and safely, we will need outstanding children, won’t we?”
“Ugh… yes…”
“Hehe, since you are the one who dominates me, I trust you will do well.”
When the tip of my tail stimulated the precious womb that would carry her children, her eyes grew hazy and languid. Looking down at the Master leaning against me, drunk on pleasure, I felt the joy of control and realized once again how much I had changed.
Enjoying the pleasant sensation of her pussy squirming around my tail, I moved with the Master toward her laboratory. Feeling the delightful texture of her inner walls, I began to understand a little why Mother always kept her tail inside.
“Haa… your Master came to Eden leading the Blackmen?”
“Yes. They are already in the middle of turning talented females into slaves.”
“Ugh, it’ll be troublesome if they take away too many gifted women.”
“I heard the Queens of Eden will be put in charge of managing exclusive Blackmen brothels.”
Even while her pussy was being stimulated by my tail, the Master continued walking steadily until we reached the lab. She opened the door and stepped inside. The room was similar to the other labs, but on the desk sat a nameplate that read: Faust Immortality Research Lab — Maria Drivique, Special Researcher.
“You even created an identity under the name Maria Drivique.”
“Because that is my name. Anyway, can you take your tail out now?”
“Yes, yes.”
I gave the tail one sharp twist, stirring up her insides, then pulled it free. I caught the dripping love juices with my fingers and tasted them. They carried the sweet flavor of strawberries mixed with vital energy.
The Master removed her overcoat and put on a white lab coat. Since she left the front open, her lewd outfit underneath was clearly visible, giving her an even more obscene aura.
“Sigh… what do you mother and daughter even think my pussy is? You’re always trying to shove your tails inside whenever you get the chance.”
“Hmm… a pleasant hole?”
It was such a pleasant hole that I could finally understand why men always wanted to put their cocks inside pussies.
“Anyway, take this data chip. I’ve organized the materials. Give it to Isabel once she has fully become a symbiote.”
“Understood, Master.”
“Even though Faust claims to be our collaborator, we can’t trust him one hundred percent. Seeing how he’s having QA tame me, he must have other schemes in mind.”
“Oh? You already knew?”
As expected, the Master had guessed why Mother was training her. So she was letting it happen even though she knew?
“It’s too tempting to resist, and there’s no good way to fight back. Still, being aware of it lets me consciously resist a little while remembering what’s happening.”
“Is it okay to tell me this?”
“You are Kyubey, but you are also my symbiote, my friend, and my slave. If I can’t trust you, who can I trust?”
“Master, I’m so touched.”
I was happy that the Master trusted me this much, but it also made me worried.
“Master, you are weak to brainwashing that uses vital energy. If it becomes difficult, I will help you.”
“How?”
“Brainwashing done through the power of fascination becomes stronger the more the target trusts the caster and willingly accepts the fascination. If I plant a deep hypnotic lock inside your ego using the power of my own fascination eyes, you won’t be affected by Mother’s fascination.”
Since Mother followed Faust more than me, there was no telling when she might receive an order to brainwash the Master. To make sure the Master would never change again, I needed to hypnotize her more deeply and strongly.
After thinking for a long time, the Master finally nodded.
“Alright. Let’s do it that way.”
“Please sit comfortably in the chair and relax.”
I waited until the Master’s breathing stabilized, then activated my fascination eyes and began a deep hypnotic procedure. Because she trusted me immensely and willingly accepted the fascination, the Master fell into an almost doll-like state and obeyed my every word.
“Master, you must trust and follow me more than anyone else.”
“Yes…”
“Now, accept my vital energy. Deep inside your heart.”
The Master’s eyes grew increasingly hazy. As more vital energy was injected, they filled with a vivid pink hue. Her body, already familiar with my energy thanks to the yin crest, accepted it without resistance and placed locks on her mind and ego.
From now on, brainwashing through vital energy would not work on her unless it came from me. As a side effect, she would now fall into hypnosis almost unconditionally for me, but since I had done this to protect her, it didn’t matter.
“It’s done. From now on, you will not be brainwashed by anyone but me.”
“Mmm… that’s a relief.”
“Hehe, hand.”
“Yes? Here.”
When I said “hand” and held mine out, the Master immediately placed her hand on mine without the slightest doubt or hesitation. In her eyes, small pink hearts floated — the mark of absolute hypnosis.
Well, since it was a mark engraved by vital energy, only other succubi could see it. But if Mother realized the Master was now in a state of complete hypnosis, she would probably give up.
“Good girl. Now you can just be yourself, Master.”
“Okay, I will.”
Oh dear. She was accepting everything I said so literally that it was a little problematic. I applied another layer of fascination, added a keyword so she would only obey when I explicitly said “command,” and adjusted the hypnosis. Only then did she react like her usual self.
“Master, hand.”
“What? Why all of a sudden?”
“Never mind. Master, this is a command. Suck.”
“Yes, mmmh.”
When I held out my finger and gave the command, she immediately began sucking without hesitation. As her tongue diligently licked and sucked my finger like candy, I spoke.
“Good. You can stop now.”
“Chu… Now tell me more about the situation.”
The Master naturally stopped sucking my finger and asked. At her words, I suddenly remembered the implant. I mentioned that there was a risk of our plans leaking if someone read my memories through the implant during experiments. The Master responded,
“There’s a program I made when I was adjusting administrator privileges. Connect this cable.”
She pulled a cable from the back of her own neck and handed it to me. When I plugged the Master’s cable into the port, I felt the familiar sensation of my brain being controlled by another person.
“You still don’t have control authority over your own implant, Kyubey. This means it doesn’t even grant you the right to defend your own brain.”
“I am a test subject, after all. Isn’t that something the researchers wouldn’t need to consider?”
“Before you are a test subject, you are my slave. Therefore you have a duty to protect yourself.”
The Master rummaged through my brain for a while and explained what she was doing.
“The firewall and security programs were deactivated. Did the researchers not consider hacking at all? First, I’ll reactivate them…”
With her words, the feeling of my brain being completely open began to narrow. I felt several layers of filters spreading out. It was a fascinating sensation.
“It feels like filters are being installed.”
“You can feel that? I’m installing multiple layers of filters, so it’s interesting that you sense it similarly.”
“Filters?”
“When someone tries to read your brain, any memories containing important keywords will be filtered and replaced before being output. That way, our countermeasures against Faust’s plans will remain secret.”
“As expected, you really are amazing, Master.”
To prepare a countermeasure in such a short time — truly, this was the Master. Even someone like her found the power of my fascination eyes difficult to resist, but she was still incredible.
The Master tinkered with a few more things, then unplugged the cable and stored it behind her neck.
“You no longer need to worry about your brain being read. I’ve also granted you user privileges, so you should be able to use the implant’s functions again.”
“Thank you, Master.”
The way the Master crossed her legs and leaned back in the chair looked incredibly sexy combined with her outfit. Feeling a surge of lust, I approached her. She flinched and shrank her shoulders.
“W-what? Why are you coming at me with that look on your face?”
“What else? I’m going to fuck you, Master.”
“I haven’t even recovered my vital energy yet!”
“Oh my, I just want to enjoy myself. This is a command. Come here.”
“Mmm…”
With pink hearts floating in her eyes, the Master obediently walked over and quietly nestled into my arms. After thoroughly fucking the adorable Master until she was a mess from climax, I sat her down on the chair, picked up the data chip, and left the lab.
After changing back into my clothes and safely storing the chip in my pocket, I noticed the Human-Horse Arena right next door and thought it had been a long time since I last visited.
When I arrived at the Human-Horse Arena for the first time in a while, the mares were in the middle of intense training. Seeing them sweating as they pulled carriages and ran made my heart race. Since it would still take time for Isabel to become a full symbiote, I decided it was a good time to run as well.
I told a passing android that I had come to run as a mare. After checking my tag, it led me to the same mare equipment I had used before. I took off my clothes and shoes in advance, stepped inside, and the door closed. A mechanical voice rang out.
├─ Mare Equipment Mounting Initiated
├─ Corset, High-Heel Boots, Blindfold — Equipping
└─ Mare Transformation Complete ★
“Haa… I really do love the way the corset squeezes my waist.”
Come to think of it, I never went back to retrieve the clothes I had taken off when I was captured. I should go find them later.
Enjoying the familiar feeling of restraint, I let the android attach the reins and was led to the stable. Once inside the stall, the reins and blindfold were removed. I looked around and saw that, as expected during training hours, all the stalls were empty.
I practiced the proper mare posture while waiting. Soon, the mares who had finished training returned to the stalls after being washed. Among them, I spotted Jerry and felt a surge of joy.
Jerry, still as beautiful and healthy a mare as ever, only noticed me after her reins and blindfold were removed. She exclaimed in surprise.
“Eli? It’s been so long!”
“It’s good to see you, Jerry. I came to run after a long time.”
“That’s what the free mares usually say. Oh, Terry became a breeding mare and was moved to the breeding room.”
“Terry is being bred?”
Apparently, someone wanted to buy the human-horse offspring that would be born from the excellent mare Terry, so she was sent for breeding. After being mated with a superior stallion and impregnated, Terry would spend ten months in the breeding room carrying the baby, give birth, and then return.
“She will be strictly managed by a dedicated android and give birth to a healthy foal.”
“Then the child will be a human-horse from the moment it’s born?”
“That’s right. From what I hear, the technology has improved a lot compared to the past. They accelerate growth so that it reaches adulthood in just one year.”
“That’s amazing.”
A child born as a human-horse would go through a rapid growth period and become a racehorse. Already born from an excellent mother and stallion combination and raised under strict management, the child would become an outstanding human-horse.
“Those children are called second-generation. Unlike us first-generation mares who were converted, they were created as human-horses from the beginning, so they are even more superior.”
“Terry becoming a parent… it feels so strange.”
“The guest invited by Terry’s owner apparently wanted her offspring as a human-horse.”
“Terry’s owner — you mean that big corporation president?”
“Yes. He’s a major sponsor of our racetrack.”
If he was the president of a well-known large corporation, he must have plenty of money. Ordering a mare who would be unable to race for ten months and then raising a young horse for a year… I had heard that second-generation horses were very rare because of this.
“The racetrack must be becoming more famous. Last time, four new mares joined at once. See those four over there? Those are them.”
“Ah, so those are the ones.”
The four mares who had entered on the same day — a group of同期 — had adjacent stalls and were chatting happily together. They all had excellent physiques, likely from superior bloodlines.
“They’re not as good as you, Eli, but they all have nice bodies and run well.”
“Hmm, since the number of mares has increased so much, it might be good to divide them into first and second leagues. Are they recruiting more trainers and jockeys?”
“Looks like Eli is very interested in racetrack management.”
I turned at the sound of the trainer’s voice coming from behind and greeted him warmly.
“Ah, hello, Trainer.”
“I came because I heard you were here. You’re my winning horse, after all. I have to take good care of you.”
The trainer stroked my chin and cheek, then carefully examined my body to check my condition.