The Test Subject and the New Maid
I selected a young, beautiful, and independent woman from among the slave prostitutes who had undergone thorough brainwashing using Eden’s Angel eyes and Abaddon larvae. She was a university student who had just turned twenty, attending a college near our house, which made access convenient. Having come up from the countryside and living alone, she was the perfect fit. Thanks to my conditioning, she had even obtained a prostitution license, yet she remained a virgin who had never actually worked in the trade.
“Hello. My name is Mina.”
“Nice to meet you. Welcome to our home.”
“I’ve already completed her basic training. She’ll pick up the rest naturally while living here.”
“Well done, Elisha.”
With black hair and delicate, well-defined features, a modest frame paired with eye-catching, oversized breasts, and an old-fashioned pair of glasses that couldn’t quite hide her beauty, Mina became a servant of our household amid the warm welcome of the family.
Dressed in a maid uniform and beginning to learn household chores, Mina adapted quickly with the help of her Abaddon symbiote, growing familiar with her duties at an impressive pace. Thanks to Mina taking charge of cleaning, laundry, and simple housework, the burden on the concubines lessened, granting them more free time.
As I occasionally left outside tasks to the AI and spent time with Elsa indoors, the day of our return to Eden drew near. The AI had been busy since the previous day preparing for the trip back to Eden, and I could see Ruya and Mina helping her.
While I lay on the examination table watching the visual feed from my eyes, Elsa was disassembling my abdomen to inspect the internal structure of the prosthetic body. Unlike my original soft, human form, this body was a highly sophisticated prosthesis that Elisa had crafted to be nearly indistinguishable from reality. It was an experimental doll Elisa had given me as a gift so that Elsa, who could not leave for the real world, could interact with a physical form.
“It won’t be long now before we truly go to Mother and Sister’s home dimension.”
“Ah~ Now that you mention it, Elsa, you were born in the Earth dimension. You’ve never seen Eden, have you?”
“I’ve seen it through Sister’s memory data, but in the end, it’s still just data, not the real thing.”
“That’s true. Seeing and experiencing it firsthand is completely different. Ow.”
Elsa, who had been touching the inside of my wide-open abdomen, must have prodded something, because a sharp pain shot through my uterus. But it didn’t seem like an accident—she was repeatedly grabbing and squeezing the organ, then releasing it.
“Ow, ow. Please don’t squeeze so hard.”
“Is this really a uterus? No matter how I look at it, it just seems like a latex ball.”
“It’s my real uterus. Nerves and blood vessels are all connected. I can even get pregnant.”
“As expected, it’s hard to understand scientifically.”
Elsa removed all the fixation devices and lifted the uterus out entirely. In her hands, the organ dangled with blood vessels and thin neural strands still attached to the body, leaving an empty cavity behind. She set the pulsing, throbbing uterus down carefully to one side and touched the vacant space.
“Even removing just the uterus creates this much extra internal space. If we dismantle the protective mechanisms meant to safeguard the biological uterus, it’ll open up even more.”
“That’s one of the drawbacks a hybrid type has to accept.”
Moreover, even among hybrids, the female-type prosthesis—with its reproductive organs located internally—was at a severe disadvantage compared to the male type, whose genitals were concentrated externally. Elsa continued speaking while examining the vaginal component that had come out along with the uterus.
“As expected, male-type bodies are far more suitable for combat purposes. Female types have far too much unnecessary waste.”
I had felt that difference acutely during the battle against the god. Even setting aside the estrus function that converted damage into pleasure, the absolute difference in volume and internal structure created a physical gap that was nearly impossible to overcome.
“When we create bioroids to replace androids, the combat models should all be male. Genetically speaking, males are better suited for battle anyway.”
“Then what about female bioroids?”
“They should be used in a variety of non-combat fields. For example, we could increase their intelligence, equip them with biocomputer functions, and sell secretary-type bioroids to businessmen. Or we could specialize their breast development and use them as dairy cows. An object’s purpose depends entirely on how it’s used.”
As expected, Elsa was incredibly intelligent. After carefully disassembling the prosthesis and separating the components, she picked up what looked like a cylindrical masturbation tool—the vaginal unit—and said,
“To maintain a living state with connected blood vessels while making the parts fully detachable like this… Eden’s technology is truly remarkable. The nerves are connected too, right?”
“Yes. I can feel every touch exactly as you handle it.”
“Let’s see…”
Elsa, who had manifested a penis at her crotch after removing her panties beneath her skirt, inserted it into the detached vagina I was holding. A slick, wet sound accompanied the automatically secreted love juices, and Elsa let out an admiring sigh as she used my pussy like a real onahole.
“This is my first time putting it inside Sister’s pussy… Now I understand why men lose their minds the moment they taste it. It feels like my cock is melting.”
“Mmm… Please be gentle.”
I acted as though I were feeling pleasure, speaking to Elsa, who was shaking her hand with a delighted expression because the sensation from the vagina felt so good. The situation—lying disassembled on the examination table, my pussy detached and being used as a masturbation toy—sent intense pleasure surging through me. The pleasure built faster and faster in time with her strokes, exploding into climax alongside Elsa’s ejaculation.
“Aaaah!”
“Hngh!”
Without a uterus attached, the vaginal component had an open channel through the stomach. Semen shot powerfully through it and splattered across my face. I tightened the pussy firmly around her cock in rhythm with her orgasm, helping her enjoy a pleasurable release, which made her body tremble as she continued to cum.
Breathing heavily after finishing, Elsa sat down in a chair with my vaginal component still impaled on her cock and caught her breath.
“Haa… I really like the pleasure of ejaculation. Now I understand why men seek out women.”
“Did you enjoy my pussy?”
“Immensely. From now on, whenever I feel sexual desire, I’ll have to use it often.”
She seemed far too enamored with the pleasure of having a cock, so I asked worriedly,
“Since you’re a girl too, Elsa, wouldn’t it be better to feel pleasure with a pussy instead of a cock?”
“Why would I do that when I have Sister, who’s so convenient to use? It’s much easier to just insert and shake to get pleasure with a cock.”
“Ugh…”
I turned my gaze away from Elsa, who was still disassembling my lower body with my pussy fitted onto her cock, and looked at the screen. To avoid disturbing her while she focused on the disassembly, I put in earphones.
“Master, you’re sure you’ve packed everything, right?”
“Yes, I’ve checked several times.”
While the AI performed a final check with Ruya, Mina—now wearing casual clothes instead of her maid uniform and carrying a bag—came running out in a hurry.
“I have a lecture, so I need to leave now!”
“Really? Then hurry so you’re not late.”
“I’m off!”
Mina gave a quick bow to Oppa and dashed out of the house. Watching her go while resting his head comfortably on Madam’s thigh, Oppa said with satisfaction,
“Krr~ It’s nice to see such a lively girl.”
“Oh my, Husband. Are you interested in Mina too?”
“No, no, that’s not it. Mina is our household maid. I just think it’s nice to watch.”
“Hehe, she works hard and is such a sweet child. She’s been a great help.”
The way Madam smiled and stroked Oppa’s hair with a hand full of affection was the very picture of a happy wife. Seeing them, Ruya whispered softly to the AI without a trace of jealousy or envy.
“Don’t they look perfect together?”
“Yes, they really do suit each other.”
The relaxed and peaceful atmosphere between the two truly made them look like they belonged together. In this house, only Madam was allowed to act affectionately with Oppa in everyday life. Ruya, who had been perfectly trained as a concubine exactly as Madam desired, accepted the sweet, lovey-dovey behavior between her beloved Oppa and Madam as completely natural. In fact, she enjoyed watching the two of them chatter happily together.
It wasn’t the image of a normal family I had once known, but since both Ruya and Charlotte—and the entire family—were happy, I accepted that this kind of family existed too. I had adapted to it and was living alongside them.
While the AI took turns serving Oppa alongside the other concubines, I had been completely disassembled by Elsa. Only my head remained, suspended in midair. The head, held aloft by a mechanical arm, had its cranial casing opened wide. Countless needles were inserted into the exposed brain, exchanging electrical signals, while below it lay the fully dismantled body on the examination table, its blood vessels and spinal nerves still connected.
Leaving me like that, Elsa and Elisa were having a conversation.
“As expected of an early-model female prosthesis, the design is quite inefficient in many areas.”
“Probably because the internal space is too cramped.”
“Moreover, even though it has a uterus, there’s no birthing system. For smooth production, a major overhaul is necessary.”
“But if we modify it according to that blueprint, won’t the abdomen’s defensive capability drop too much?”
“A woman’s abdomen is a vital point to begin with. I believe it’s more important to avoid being hit there from the start.”
The two were discussing modifications to my prosthetic body. As I listened quietly, I learned something new: even though it contained a biological uterus and genitals, the structure was not suited for carrying a fetus, and there was no birthing system at all. In other words, even if I became pregnant, I couldn’t actually give birth. That was why they were designing a modification plan—not only for the bioroid that would become Elisa’s body, but to optimize me as a mother for continuous, efficient production.
“Don’t worry about the uterus’s durability. Las is surprisingly tough and will hold up far better than a normal uterus.”
“Still, we need at least some protective devices. If we build it exactly to Elsa’s design, it will be too vulnerable to external impacts.”
“But as a mother body, it offers the highest performance. The burden on the bioroid would also be minimal.”
“Hmm…”
Elisa pondered while touching the black uterus among the neatly arranged, fully disassembled components. Aah, being touched directly is quite stimulating. After stroking the uterus as if it were a stress ball while deep in thought, Elisa finally nodded.
“Alright. Since Elisha’s combat style prioritizes evasion anyway, it should be fine. Let’s go with Elsa’s design.”
“Wow~ Thank you, Mother.”
“Then make a test model. You can do that, right?”
“Leave it to me!”
Elisa encouraged her daughter and left the laboratory. Seeing how happy Elsa was that her mother trusted her, I asked while she hummed cheerfully,
“Aren’t you going to reassemble me now? It’s a bit uncomfortable not being able to move.”
“Why bother? We can just transplant this into the new test model we’re making. Let’s throw the old model away.”
At Elsa’s gesture, the disassembled body vanished, leaving only the heart that circulated artificial blood and my head. The sudden loss of all bodily sensation felt strange, and I could only blink.
“Ehh… Then what am I supposed to do? Just hang here doing nothing?”
“From now on, I’ll be extracting your entire latest memory data, so you won’t even feel bored. Just think of it as taking a nap.”
Elsa spoke as she inserted even more electrodes into the exposed brain inside the open cranial casing. As each electrode went in, my senses grew increasingly numb. Unable to speak, I could only watch until Elsa operated the keyboard. That was the last thing I saw before my consciousness cut off.