Chapter 21: Simulation
“Kokonoe… I like Asuka. So even if you’re really beautiful, that’s still a bit…”
“B-b-beautiful…!?”
“People were calling you cute today too, weren’t they?”
“I-I was so nervous that… I barely remember what anyone around me was saying…”
It seemed she still couldn’t talk properly with people she felt a certain distance from.
In any case, even if it was just a simulation, imitating sex was—
“…W-would you consider it practice?”
“Practice?”
“Yes. Practice for when you eventually… have sex with Otomi-san. You said you don’t have any experience either, Fukase-kun…”
“That’s…”
Now that she mentioned it, it’s true—I’m inexperienced.
There was a chance I’d panic and not know what to do when the time came.
But if it were both of our first times, wouldn’t that be natural?
If anything, if I acted too composed, Asuka might end up feeling suspicious instead.
—Though there’s no guarantee I’ll ever get that chance with Asuka in the first place.
“P-please…”
“Kazuto-kun… please.”
The two of them were being unusually pushy today.
Why had it come to this…?
“Kokonoe… you know this is going to put you in an embarrassing position, right?”
“I-I’ll be fine…!”
Really?
Her face was already bright red.
“…Alright. Fine. Just a little—really, just a little.”
In the end, I gave in.
The two of them were the first people I had bonded with in this world, and they meant a lot to me.
They’d supported me emotionally in more ways than one.
So maybe… just a little—
“—Then, Kokonoe, could you lie down on your back there?”
“Y-yes… l-like this?”
Kokonoe awkwardly lay down on her back.
I stepped closer and gently placed a hand on her thigh.
“Are you really sure about this?”
“Y-yes…!”
Did she even understand what kind of position she needed to be in?
Bringing our groins close together meant, in other words, that her uniform skirt would—
“This is what the typical missionary position looks like.”
“Ah… w-w-wait…!”
I spread Kokonoe’s thighs, putting her into an M-shaped position.
In that instant, her white underwear was completely exposed.
Unable to bear the embarrassment, Kokonoe covered her face with both hands and trembled.
Come to think of it, Aoi was used to seeing girls’ underwear.
Judging by how unfazed he was, maybe he wasn’t getting excited at all.
“And then, we bring our groins together like this.”
I pressed my crotch against Kokonoe’s underwear.
“A-ah… i-it’s really… embarrassing…!”
“Yeah, I know… and then I move my hips like this—back and forth.”
I gripped Kokonoe’s thighs and slowly began the piston motion.
Each time we made contact, a light slapping sound echoed, making the atmosphere feel almost like the real thing.
“I’ve seen something similar before.”
“You mean strapping an uribou around the waist?”
“Y-yes…!”
“Thought so…”
In this world, the name might be different, but there was probably something equivalent to a strap-on.
A tool meant for women to enjoy themselves together, without knowing what it was like with a man—
“Kokonoe, I won’t hold back.”
“Y-yes…!”
At this point, there was no choice but to steel myself.
I’d go through every position I knew.
“In the missionary position, I can also lean my body down like this to kiss and touch your breasts while pistoning.”
“Awawa… your face is so close… t-too close…!”
“I-I’m embarrassed too… just bear with it for a bit.”
This position was dangerous, even for me.
Kokonoe’s breasts pushed against my chest, and our entire bodies were pressed together.
At a distance where our breaths brushed against each other, I felt like my heart was going to explode.
“Then there’s doggy style. It’s the basic position for animals other than humans. I grab your hips or butt like this, then move back and forth. Another one is spooning, where we lie on our sides and I hug you from behind.”
“T-this… feels really… strange…”
With Kokonoe on all fours, her soft butt was pressed right against my crotch.
—This is bad. I’m already half-erect.
“And last is cowgirl. Just like the name says, it’s where the woman sits on top of the man. I’ll lie on my back, and you get on top.”
“M-me!? I-I’ll be heavy…!”
“It’s fine. In my old world, it was a normal position.”
Just as I’d said, Kokonoe cautiously lowered herself onto my waist.
The pressure crushing down on my groin was transmitted directly, and the stimulation intensified immediately.
“…And then, with the feeling of our genitals pressed together, the woman moves up and down.”
“I-I’ve never even heard of this…! I guess it’s a position that only works because men have… a penis…”
“Yeah. Alright then, just one last thing.”
Keeping our groins pressed together, I slowly raised my upper body.
Our chests, stomachs, and legs—almost everything was touching.
“This is called face-to-face sitting. Kokonoe, I’m going to lift you a little.”
“Eh? Kyaahhh!?”
Not expecting to be picked up so suddenly, Kokonoe let out a startled scream and clung to my shoulders.
Though she didn’t seem like the type who cared much about her appearance, her scent was surprisingly pleasant.
“Then there’s this one too. It’s the back-facing sitting position—where the woman sits on the man while facing the other way. If you do it in front of a mirror… apparently, you can see everything. You get what that means, right?”
“Y-you mean… my crotch would be completely exposed…?”
“Yeah. Some people apparently enjoy that kind of thing.”
“T-that’s perverted…!”
I gently lowered Kokonoe back down to the floor.
That covered all the positions I knew, at least for now.
“Kazuto-kun… that was amazing. Really, it was incredible…!”
“I-is that so. If it was even a little helpful, then… I’m glad.”
Before I knew it, Aoi, who’d been silently watching, started clapping softly.
Would a day come when even Aoi would put this into practice too?
“Fukase-kun… I’m sorry for asking so much. Thank you.”
“Yeah. It’s fine.”
“A-and then… um…”
Kokonoe flushed and hesitated, struggling to find her words.
“What is it?”
“Well… um… I know it was supposed to be a demonstration, but… your hard thing… pressing against me the whole time…”
“Y-you idiot! I was desperately holding myself back!”
“Eek…! S-so does that mean… y-you were excited by me…?”
“…So what if I was?! It’s not like guys only get aroused by someone they like. It’s just a physiological reaction!”
“I-is that so… heehee… I’m… happy…”
I could call it a creepy smile and be done with it.
But Kokonoe looked genuinely happy as her expression softened.
…Damn it. Now I’m completely turned on.
Character Summary (non-official)
- Fukase Kazuto (深瀬 和人) — A normal boy of average build, 173 cm tall, and a former member of his middle school’s soccer club. Transported to a self-sufficient yuri world where boys are typically feminine and frail, he becomes a clear oddity simply by being himself.
- Kokonoe Touka (九重 燈花) — A quiet girl with long pink hair and round glasses. Soft-spoken and seemingly shy, she gives off a gloomy yet intelligent impression and prefers reading over joining clubs. Beneath her reserved exterior, however, she harbors an intense, restless curiosity about boys.
- Otomi Asuka (音海 飛鳥) — Kazuto’s classmate since middle school. She has glossy black hair cut in a bob and held by two red hairpins, snow-white skin, and a striking F-cup figure. Despite her popularity and the countless confessions she received throughout her three years in middle school, she has never dated anyone.
- Yuuki Sena (結城 星渚) — A gyaru with short, light-blue hair, small earrings, and sun-tanned skin. She wears her uniform skirt shorter than usual, giving her a flashy appearance. Despite her casual look, she’s a serious athlete who has been devoted to track and field since middle school and plans to continue it in high school.
- Ouran Onikisu (王蘭 黒曜姫) — The student council president, known for her beautiful, androgynous appearance and her cool, confident demeanor, which has made her popular among the students. While she maintains a polished and authoritative image in public, behind the scenes she is secretly involved in perverted activities, and this hidden interest is the reason she actively seeks out and recruits girls into the student council.
- Hareruya Aoi (晴谷 碧) — Kazuto’s classmate. Short and slender with a small frame, Aoi has an androgynous appearance accentuated by his soft golden hair, giving him a delicate, almost feminine presence.
- Fukase Tomoka (深瀬 友香) — Kazuto’s sister in both his previous world and the current one. A third-year high school student, she looks after Kazuto out of concern for him as a boy, since common sense in this world treats boys as an inferior species.
- Fukase Saya (深瀬 沙耶) — Kazuto’s mother in both his previous world and the current one. In the current world, she conceived him with another woman, who left after learning the child was a boy and refusing to accept Saya’s decision not to abort. Kazuto is the only boy she loves and protects in this world.