Chapter 39: Development (1) [R-18]

Following the established procedure, the trainees filed out of the room in a line.

But two bodies, held back by the order to wait, remained lying on the cold floor, panting amidst their shared heat and the stickiness of leftover semen.

“…Hah…”

Seojin exhaled, her back flat against the floor as she stared at the ceiling. A soft moan escaped her as her wet inner thighs brushed against each other.

Beside her, Iseo had an arm draped over her eyes, feeling something trickling from inside her.

It was then that a voice called out.

“Trainee Hyun Iseo, Trainee Kang Seojin.”

A mechanical voice, not from the barracks speaker but from just outside the door, echoed along with the rustle of a notepad.

“You are authorized for an outing. Prepare to depart immediately.”

Seojin and Iseo’s eyes shot open at the same time. Reality seemed to arrive a moment too late.

“…An outing?”

For Iseo, who had enjoyed the previous day’s session, the mere thought sent another tremor through her lower body, and she couldn’t hold back a smile.

“Yes, sir.”

Seojin didn’t answer. She simply got up, wiping something from the floor with the back of her hand.

When the vehicle carrying them came to a stop, the doors slid open automatically, revealing a meticulously arranged garden. Fine grass covered the ground, and the pruned trees were as perfectly manicured as those in a hotel landscape.

“…What is this place?”

Seojin ran a hand through her still-messy hair, lifting her head to take in her surroundings.

Through a glass wall, she could glimpse an interior decorated like a gallery. The faint sound of a piano drifted from an unknown source, and in time with the music, an automatic door slid open with a soft beep.

Iseo tilted her head for a moment, then stepped forward cautiously. Soon, however, she walked inside as if she were perfectly accustomed to such places.

Seojin, on the other hand, had never seen anything like it and hesitated for a moment. Her heart was beating erratically beneath her still-damp underwear, and the sound was a constant distraction.

But the floor, which held no chill, the air that wrapped gently around her, and the scenery so starkly different from where she had just been—it all made her strangely tense.

This place was, after all, designed to make them comfortable.

The ceilings were high, and the corridor was softly lit. Digital frames displaying scenes of nature hung on the walls, and beneath them, small nameplates were engraved with numbers and names.

“Trainee Hyun Iseo, this way, please.”

“We are ready for Trainee Kang Seojin as well.”

Staff members in simple uniforms guided the two of them in separate directions. Iseo, without any hesitation, waved to Seojin and walked away.

“Hope it goes well.”

Seojin, however, stared intently at the small metal plaque hanging next to the door she was meant to enter.

[Development and Management Zone · Wing A, No. 05 · Kang Seojin]

She let out a quiet breath and stepped inside.

The moment the door closed, all the noise of the world vanished. Seojin barely had a chance to scan the room before her eyes landed on the large chair placed in the very center.

Finished in ivory-colored leather, the chair was lower than a bed but was no ordinary sofa. It was a recliner, designed so that one could be completely secured in a supine position, with supports for the legs, back, and neck.

What truly drew her attention were the unidentifiable instruments arranged silently around the chair, reminiscent of a hospital or a laboratory.

“…What do they do here?”

Seojin muttered quietly and turned, but the door had already locked automatically. The windowless walls offered no answers.

She took a few steps and found a small, round button next to the chair.

Should I… press it?

But before she could reach for it, a low voice flowed from a speaker in the ceiling.

“Trainee Kang Seojin. Condition stabilization confirmed. Body temperature and heart rate are normal. Commencing the ‘VIP Adjustment and Accommodation Program.’”

“…What?”

Before Seojin could even lift her head at the announcement she had missed, restraining straps automatically unspooled from the armrests on either side of the chair.

She knew, instinctively. The moment she lay down in it, she would no longer be able to resist.

Because of that, Seojin stood there for a long time before letting out a quiet breath and slowly perching on the edge of the chair.

As she cautiously leaned back, the machine vibrated lightly, silently adjusting its angle to fit the contours of her body.

The heated backrest soothed the tension along her shoulders and spine, and Seojin could feel her body, exhausted from the morning’s ordeal, slowly begin to relax.

She found herself settling in, her arms and legs fitting perfectly into the supports.

…This is strange.

It was a comfort born from lavish wealth, something she had never experienced before. Seojin closed her eyes for a moment, then slowly opened them and looked ahead.

As satisfying as it was, her body, heated since morning, couldn’t be appeased by this alone. What caught her eye was the round button on the right armrest.

Her heart pounded.

Knowing full well that something would happen, Seojin slowly extended a finger. She took a short breath and then, click.

With the sound of the button depressing, the soft bands wrapped around her arms and thighs smoothly tightened.

“……!”

There was no time to be surprised. A transparent, curved cover immediately descended from above her head to her chest. It settled over her large breasts, centering perfectly on her nipples before pressing close.

『Commencing breast sensitivity enhancement and mammary gland development.』

Along with a gentle, feminine, mechanical voice from the chair, a soft wave pulsed from within the round domes. At first, it was as light as a breath.

But soon, like a deep current, a subtle vibration spread across her entire chest.

“Ngh…”

Seojin’s lips trembled slightly.

Minute changes in pressure began to occur inside the domes. At first, they gently enveloped the center, then swept around her entire breast as if to carve it out.

“Heut…!”

Seojin held her breath, then let it out in a short gasp. It felt as if she were being gently sucked inward. Nothing was touching the surface, yet the nerves inside grew sharper and more distinct.

『Subject response is positive. Mammary gland stimulation rate increasing by 27%. Introducing micro-current cycle.』

Just then, an invisible current inside the dome gathered toward the center, converging on the tips of her breasts as if seeking a wick.

“Ngh…!”

A tiny jolt of stimulation shot through her nipples like lightning. The building pressure and tremors focused on the center, then traveled upward to send a tingling shock through her brain.

『Entering Milk Secretion Stimulation Protocol, Alpha Mode. Adjusting autonomic nervous system response sensitivity.』

“Milk… secretion?”

Before she could finish the words, another wave of stimulation washed over her. This time, it was a vibration that struck both nipples simultaneously, seeming to pierce deep inside.

Inside the domes, a warm, soft vibration circulated evenly, like a palm drying her skin, and Seojin’s body sank deeper and heavier into the chair.

A tingling sensation spread between her thighs.

Seojin could feel places that hadn’t been touched growing more and more sensitive. It was only her breasts, but her entire body was responding.

『Response value increase rate is excellent. Transitioning to the next phase.』

At that moment, a very soft and rhythmic sucking sound came from within the domes covering her breasts.

“Hah… Hnngh…”

The suction felt like a baby’s lips taking her nipple deep into its mouth and slowly drawing on it.

As if the mechanical precision had learned natural instinct, her nipples, which were being intermittently pulled, were now damp and slick. It felt as if a strangely ticklish passage had opened deep inside.

『Lactation response value, stable. Pre-secretion stage reached. Proceeding with additional sensitivity adjustment.』

“Ah, ahng…”

Seojin closed her eyes. She was just lying back in a chair, yet the tips of her breasts were resonating so intensely that her inner thighs were trembling. It didn’t feel real.

She was experiencing a whole new world.

『Electrode stimulation pattern changed. Switching from Alpha to Lambda hormone injection.』

Click—

With a small sound, a thin needle on the inside of her restrained arm pricked her skin. A sharp sting. But faster than the pain, her heart pounded as if her breath had been stolen.

“…Ugh.”

Seojin’s whole body flinched, and she bit her lip. Something was whipping up her senses from within, pulling them higher.

As if in response, the domes over her nipples began to apply a strong, upward squeezing pressure, like masturbating the cock she used to have when she was a man.

『Transitioning to secretion induction pressure phase. Wave intensity increased by 30%.』

“Eungh… Haht…!”

It was impossible to describe in words.

Inside her breast, she felt a duct that was surely always closed begin to slowly open. A warm, current-like sensation flowed along it, and the pressure that had been sweeping her center began to steadily travel up that path.

…This is… weird…

Seojin thought. But she was smiling. Her eyes were squeezed shut, but the corners of her lips were trembling slightly.

『Preliminary secretion response confirmed. Amplifying secretion induction waveform.』

“Ah… Aaaah…”

Something that had been writhing and suppressed inside Seojin’s chest burst open with a pop. Toward the center of the dome, at the tip of her nipple, a clear liquid began to drip out. The machine didn’t stop, moving with a steady, milking rhythm.

Squeeeze—

“Heut…!”

The sound of her breast being milked. It was an experience entirely different from masturbation or foreplay.

Squeeeze—

Click. Squish. And another long squeeze.

Seojin’s spine twisted. The wet, sucking sound echoing inside the dome came from a pressure that felt as if it were wringing out her entire breast.

“Haht…! Ah… Ah, no…!”

But it didn’t stop. The more her breasts swelled, the more they seemed to bubble as if about to burst, and the newly opened milk ducts did not disappoint.

Sluurp—

“Ah…!”

The first drop. No, it wasn’t just one drop. A white line was instantly drawn inside the transparent dome. The second one sprayed out. The third didn’t just flow; it poured.

『Lactation response has begun in earnest. Mammary gland stimulation has reached maximum. Maintaining secretion pattern.』

“Haaaah… Heup…!”

The sensation of it being forced out.

The physiological fluid being squeezed from inside her body was staining the transparent space before her eyes. Seojin’s eyes flew open at the realization that something was actually coming out of her breasts.

Her breasts were already glistening as if wet, and the dome was filled with a milky white liquid that sloshed over a palm’s width. It was already more than a cup, maybe even two.

The weight and sensation of her breasts had clearly changed.

…It’s real… I… it came out… milk.

Her mind went blank at the sensation, so developed despite her having no baby.

Translated By: Meher (RaidenTL)

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