Volume 4 Chapter 9 Lust
Edited by: Kanaa-senpai
”Just the tip. That’s all I need.”
Usually, that’s the kind of line men use to talk a woman into bed. A line I swore I would never say. But here I am, hearing it from a woman. A divorced woman with a body that’s practically an invitation to ruin.
But let’s back up a bit.
To be clear, what happened with Katarina happened on the same day as the final round of tests—the ones where we decided on the payload amount.
Katarina is an expert in fixed-wing drone systems. Not only is she very good at flight dynamics, she’s an excellent engineer. I’m the only one who can design the twin-engine fixed-wing drone models, but she’s the only one who can actually build and fly them. The expert—Katarina—had warned me: the single-engine fixed-wing drone could only carry an extra seventy-five grams of weight. Even if we’re talking about “nitro-gel”—a safer form of nitroglycerin—it’s still very dangerous.1 Between the paper that absorbs shock and the waterproof cloth, the casing alone weighs over twenty grams.
The real problem, though, was the inconsistent quality of the dynamite itself. The test the day before was only about the amount. This time, we needed the handlers to understand how the dynamite behaved in detail, so that the people actually using it could do so safely. Trying to make large amounts of nitroglycerin is like suicide, so we had to make it in small, separate batches. Yet, even using the exact same methods and amounts, the explosive power of the finished nitro-gel changed a lot.
Ingredients are hard to find and expensive; I couldn’t just make many test versions. Still, we managed to create twenty units with different amounts of explosive. We used the self-destroy device from the fixed-wing drone for the trigger.
I wanted the whole staff to see the test, but time was short. We narrowed it down to Katarina—who was in charge of fitting the bombs onto the drone—and Birger Dons, a visiting professor from the Naval Academy’s Navigation Department and a Major in the CeltRoyal Army.
Since they’d be the ones using it, I showed them how to handle the smallest ten-gram dynamite unit, using a humanoid-type Golem (a magical creature). I showed that while it wouldn’t explode under a Golem’s foot, a strike from an iron hammer could set it off. I even showed them how it reacted to flames and explosion from nearby blasts.
”Such a small amount, yet this much power?” Major Birger asked.
We were fifty meters away for the test, but Major Birger was wide-eyed, clearly shocked by the blast wave. I’d meant to warn him to be careful, but… well, I suppose he was impressed.
Looking back, I feel like that was the moment Katarina’s expression shifted.
I had them compare the units that worked well against the ones that didn’t, tested different amounts from ten to fifty grams, and finished with a test: slamming a fixed-wing drone loaded with ten grams of nitro-gel into a wooden wall to show its actual effect.
”Since the quality varies, we have no choice but to load the maximum weight,” Major Birger concluded. Katarina agreed. Materials are very expensive, and we depend on importing strong nitric acid from Turku—not a friend—so I’d wanted to use smaller amounts. But on a battlefield where lives are traded, what can you do? I gave in.
After the target meeting ended, the Major returned to Kure. While I was checking the day’s logs with the Arsenal Bureau staff who were helping out, Katarina, who had stayed behind, came to me.
”Um, the shock of that explosion, it hit me right in the gut…” she whispered.
She took my hand and spoke to me through telepathy. We’d set off explosions plenty of times before. Was something wrong?
”What about the shock?” I asked.
The atmosphere felt off, so I stepped away from the group.
”It makes me throb.”
She clung to my arm, pressing those rather large breasts of hers against me, saying, “My womb…”
Here? Now? When I read her mind, I found it was practically exploding with lust.
”Just the tip. That’s all I need.”
She said it with her own voice, whispering into my ear as if breathing directly onto it. I don’t know if it’s true, but I remember a story in a dirty book from my past life about getting excited by summer fireworks. Could this be the same thing?
We were in an empty area, half a day’s travel from Kure. It was originally used as a horseback training ground, but since the main war zone moved south, it was used less and less, so I’d been allowed to use it for dynamite development.
There was a headquarters building, a barracks for the soldiers, and rooms for the officers. I was staying in the officers’ rooms with the Arsenal Bureau people, but since it wasn’t used much, it hadn’t been fixed up and was falling apart. On top of that, the construction was cheap, so the walls were thin enough that you could hear someone snoring in the next room.
”I have a matter to discuss with Katarina, so sorry, but could you all write down a summary of today’s events? I’ll look them over tomorrow morning before taking them to Kure,” I told them.
I told this to the people in the conference room, but everyone was just giving me a knowing smirk.
”Should we bring you something to eat when it’s ready?” one asked.
It was true that the sun was starting to set, but that was definitely sarcasm.
”Right. Anyone who forgets to knock gets sent to the front lines. And anyone who opens the door without waiting for a response gets assigned to guard duty on ships,” I warned.
I left the room, ignoring their murmurs about me being a tyrant, but they all looked like they were having far too much fun.
’Katarina, you are, for all intents and purposes, my former student or subordinate…’ I thought.
I tried to persuade her through telepathy, hoping to calm her strong lust, but she wouldn’t listen.
’Is that the Professors’ office?’
Next to the conference room, there was a small office for me with a desk, a bookshelf, and a small bed for short naps. It wasn’t even a third the size of the school professors’ offices. There was a sign on the door with my name, but no rank.
’I can’t wait anymore,’ she replied.
Seeing it, Katarina didn’t even try going to the barracks; she dragged me into the office.
As I resisted her clinging, I managed to lock the door with a bolt before being shoved against the door and having my lips sealed.
While she called out “Professors, Professors” through telepathy, she began to play with my body. Before long, she crouched before me, pulled down my trousers, and immediately took me into her mouth.
”Don’t be so impatient,” I urged.
Even as I tried to calm her down, she shook her head back and forth, sucking eagerly as she took off her own clothes. She managed to get completely naked with great skill, then stood up and started taking off mine. But she had trouble with the buttons. When I went to help, she must have found it annoying, because she pushed me down onto the clothes she’d spread on the floor and climbed on top of me.
”I told you it would just be the tip,” she said.
Words like that didn’t matter to her. She had a desperate look on her face.
Katarina leaned forward, grabbed my hard penis, and sure enough, she slid just the tip in, as promised. But after a breath, she pushed down.
’…’
My penis went inside her and reached all the way to her deepest part. At that moment, her mind went empty, and the lust that had been wild calmed down just a little.
Is this my turn?
The moment I thought that, the muscles inside her tightened around me.
As I reached out to touch the large breasts hanging before me, she grabbed my wrists. Katarina had turned into a wild animal, thrusting her hips back and forth with great force.
I’m being attacked by a woman! No, to be precise, I am being used. She moved her hips so hard I thought I might be broken, her hard deepest part rubbing the tip of my penis.
’I’m going to come,’ I sent.
I sent the warning through telepathy, but Katarina didn’t care. The liquid overflowing from her was dripping down over my balls.
”Ah, ah,” she cried out.
Her movement changed from back-and-forth to up-and-down, and she started making noise, shouting. Hey, this is a workplace, and my colleagues are nearby.
’They can hear us outside!’ I signaled.
Whether she couldn’t hear my telepathic warnings, her hips and buttocks were hitting together with a loud thwack-thwack sound. Even if it weren’t a poorly made building, there was no way they wouldn’t notice. I could already see the smirking faces of my colleagues who would make fun of me later.
Though the light from the window above the door made it hard to see clearly, I could see the expression on Katarina’s face—a beauty, mind you—showing pleasure, and her large, nice-shaped breasts bouncing, increasing my own wild excitement. The feeling in my groin was strong, and her slightly sweet smell mixed with her sharp breaths and increasingly heavy breathing. Her mind was becoming a blank, throbbing emptiness that grew every second.
I don’t care about my colleagues anymore. I want to squeeze them! I want to grab those bouncing breasts, just the tips! My wish went unanswered; soon, Katarina’s mind went completely blank, and my own body’s response happened at the same time. In other words, I came.
”Haaaah, Professors, that feels good,” she said.
After enjoying the nice feeling after sex for a moment, Katarina said this, leaned over me, and lightly sucked on my lips.
”That doesn’t mean it’s fine; this is a workplace,” I said firmly.
’?’
Come to think of it, she had been made to do this by Professor Pauman in his office at the school.
’It’s more exciting in the workplace than at home, right?’
Well, maybe so.
The image of my colleagues flickered in my mind. The people here are military personnel sent from the Arsenal Bureau. It’s a mixed group, but outside of work, the men tend to gather with men and the women with women, and perhaps due to my position, I spend most of my time with the rough men.
”Sensei Larry was doing it with Ms. Katarina back in his Academy days, wasn’t he?” one soldier said.
”That body. It’s unbearable, isn’t it?” another added.
When men get together, the conversation always drifts toward that kind of talk. Apparently, her appearance is famous among the young naval soldiers.
But I had firmly denied any relationship with her.
”Are you serious? Sensei Larry is famous for being fast with his hands, so that has to be a lie,” one insisted.
”I heard the play about the cheater was based on the Professors,” another claimed.
I had worked silently every day to correct such wrong rumors spreading in society. But thanks to Katarina, who was currently clinging to me, naked, in my office, it felt like it had all been wasted.
And to make matters worse, news like this spreads among the women just as quickly. That day, Katarina ended up staying in my bedroom. Perhaps I should have just had her leave from the office. After all, the first time, Katarina did what she wanted with me so thoroughly I didn’t even get my chance.
A long time ago, when I was an Associate Professor, she wasn’t just a former subordinate but my personal assistant, and we were together every day. I didn’t touch her sexually then, perhaps because I didn’t need to, and because of the Henrietta-san situation, who had a similar body.
Even so, seeing a body as sexy as hers certainly made me feel like it, since I’m a man. But I always told myself that it was wrong in a school setting.
When we lived under the same roof as assistant and professor, there were times when she’d loosen her bathrobe after a bath, showing her smooth, long legs right up to between her legs, or she would bend over in front of me, showing her breasts. Looking back, she might have been inviting me.
In the second round in the office, it was finally my turn. I traced my hands over Katarina’s thin, long, smooth legs, now a little calmer. Halfway up, she let out a small cry as I used her Mana (magical energy) and twisted her slender waist.
I moved my hands and grabbed her small buttocks, one in each hand. She must have liked it, for she sought my lips. As I kissed her deeply, I slid my hands up to her large breasts, where her n**ples were pointed upward. While enjoying their softness, I rolled her stiff n**ples with my index fingers, took them into my mouth, and gave them a gentle bite.
Katarina’s skillful fingers were thin, white, and long compared to other girls’. Those fingers pinched me there, and her fingertips rubbed the swelling of my tip. She really did have the skills, having been the sex partner of Professor Pauman.
Eventually, the lust began to spread through the mind of Katarina, who had been calming down a little.
I had something I wanted to try here. The fireworks thing. I swapped positions and held her thin body from behind. She shook her hips left and right, rubbing my penis. I rubbed her sensitive spot, then moved my hand a little higher, placing my palm on her lower belly.
If her body shook because of the vibration of fireworks, then I would send Mana from my palm into her body like a wave of energy.
”Nooo!” she screamed.
She let out a cry that could have reached the hallway and tried to turn around and cling to me, but I didn’t stop. After all, she had just come, yet a storm of lust was already burning through her mind once again. I placed my palm in the same spot and sent a pulse of Mana through her again.
”No, it makes me go crazy, please,” she begged.
She pleaded while gasping for air. But when I sent more, her eyes went empty, and drool dripped from her half-open mouth onto the floor.
’Is that the kind of thing you like?’
When I read her mind, I could see the acts that had been done to her in the past, which felt so good that her consciousness had escaped.
’No, don’t read my mind,’ she pleaded.
But neither her body nor her mind offered any resistance. I placed my lips between her buttocks and squeezed her sensitive spot.
”Nooo!”
She shouted loudly and struggled to escape, but I kept going.
’Here I go,’ I warned.
I gave her the warning and received the Mana released from her sensitive spot with my lips. Within seconds, Katarina fainted, and as she shook with spasms in her hips, she even ended up peeing.
Thanks to that, her clothes were ruined, and naturally, I couldn’t do anything more, leaving me not satisfied as well. In the end, Katarina ended up staying the night.
Incidentally, for just a moment, I was able to read how she had come to have such a reaction. It seemed to have started after Professor Pauman started using her anus.
To put it into the backside, where there are hundreds of millions of dangerous germs, without even using a condom—it’s like he was practically asking for her to get an infection. I’d like to avoid doing that. Yet, that dirty professor apparently didn’t care.
* * *
The next day, when I went to Kure with the report, I was scolded by the handsome Dean and the President to stop sexual activity in the workplace. Apparently, a complaint had been made by a female soldier. Well, I suppose that was going to happen.
After that, I focused on nothing but work—no more distractions.
* * *
About two weeks later, the new ship was completed, and we had the ceremony to launch it on April 26th.
A band came and played, but there were no formal rituals. When the gate was broken and seawater came in to lift the newly built ship, the ship was named “Izumo,” and the ceremony ended. Immediately, tests for the boiler, turbine, and craft engine began.
I received word from the Intelligence Bureau that the genius Rosa had left the Grimaldi Principality a week ago, accompanied by an Amazoness (a female warrior from myths). With contact made with the Amazoness, talks for the prisoner swap were set for June 6th in the port town of Suez, so the place and date were decided. Working backward from there, the departure date was set for May 2nd.
According to Major Birger, who had become captain, there was absolutely no extra time in the schedule.
—
Summary:
Katarina and Larry conduct explosive tests, leading to an intense, non-consensual sexual encounter in a shared office space. The incident causes a scandal, drawing reprimands from academy leadership. Meanwhile, the ship Izumo is launched, setting the stage for a critical hostage exchange mission in Suez.
—
Trivia:
The nitroglycerin instability forces small-batch manufacturing.
The officer’s quarters where the office is located are in a state of disrepair.
Katarina’s sexual trauma and development seem linked to Professor Pauman.
The Izumo’s departure date of May 2nd is dictated by the June 6th Suez meeting.
—
Translation Notes:
Notes:
• Katarina – A 30-year-old female Assistant Professor, former Academy Chief Researcher, and drone expert with an erotic physique and explosion-triggered instability. Expelled after being used by Pauman, this former intimate subordinate of the protagonist now serves as Earnest’s attendant and squadron commander on the ship. Assisting in operations, she recently decided to marry her established partner, Larry.
• Birger – A middle-aged, red-haired Royal Capital native with a pro wrestler’s physique, this rugged Admiral and Celt Royal Army Major is the captain of the Izumo and head of the Navigation Division. A trusted advisor and naval tactics expert who knows the Norden Sea deeply, he serves as a Naval Academy guest professor and led the black ship fleet during the Grand Principality’s founding.
• Major – A commanding military officer with a sadistic inclination toward interrogation. She orchestrates the sessions and utilizes Telepathy to coordinate with her subordinates.
• Celt – In his twenties, this former tenant farmer and 303rd Unit militia leader is now a pragmatic, calculating Deputy Commander of the Town Guards—equivalent to a sergeant or officer—overseeing Strock Village’s fortifications. Dressed in simple work clothes, he quietly admires Teressa-san’s skill and serves as the village’s trusted gossip source, having earned his land with reward money. Once a sandal-maker and translator of Bours’s jargon, he maintains a careful working relationship with Larry while balancing political interests, embodying calm kindness beneath his disciplined exterior.
• Pauman – A deceased, arrogant Academy professor and former Magic Tool Lab head who was killed during the Haritz Rebellion. He previously mentored Katrina but was known for his exploitative nature and controversial history with female students. His past magic ship project contrasts with the protagonist’s, and his course load was inherited by Larry, Eida, and the protagonist after his death.
• Larry – Sammy I (Larry-sama) is a 16-year-old bald, dark-haired Grand Duke and Second Lieutenant who reincarnated from an engineering professor. Leading a naval vessel, this serious yet easily flustered officer uses past-life tech, mana, and telepathy to design ships and dynamite. Frequently underestimated due to his youth, he maintains heavy influence through four wives, kids, and sudden unexpected fame.
• Henrietta – Deceased wife of Larry and former Royal Magic Academy researcher whose consciousness became a parasite in her daughter’s body. Assassinated by Bizan’s former Principal, this muscular, large-busted pervert and rare-named former orphan guarded the protagonist at the East Palace. Eagerly awaiting Larry, she attended Bizan’s military academy and is recognized by her former slave Pamela by scent.
• Mana – A non-commissioned officer and liaison who previously had their mana drained by Larry.
• Dean – A professor whose office serves as a central hub for academic administration.
• Principal – The mother of Line and the administrative head of the institution. She exercises authoritative control over research assignments and seeks to trade Larry for Ilse Klein due to interpersonal conflicts in her laboratories. The mother of Sabrina and Rhein who intervenes during Rhein’s violent corridor assault to break up the confrontation.
• Rosa – A 14-year-old, square-built Sabaski shipyard professor of noble half-Dwarf descent, this cynical genius has immense mana and psychopathic tendencies. A wealthy Kure-region associate and drone pilot, she profited from the protagonist’s blueprints and designed Bohemian glass propulsion. She was then kidnapped by the Amazoness, deemed dangerous by the state, and targeted for assassination.
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Edited by Kanaa-senpai.
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