Believing She Has Been Reincarnated into a Baseball Game, My Little Sister Is Aiming for the Koshien, While I Give It My All to Keep Her from Finding out That It’s Actually an Ntr Game - Chapter 20

“Hey, Kyugo.”

Maika, the self-proclaimed Queen of Logic, let out a deeply exasperated sigh.

“Your semen, you know, it’s super sticky right after you ejaculate, almost like slime, but it quickly turns watery. Semen naturally has the property of liquefying, but yours, in particular, does this rapidly. It’s fast. This is an important biological process that helps sperm move more effectively within my reproductive system. What I’m saying is that your semen isn’t just thick; it’s got an insanely high potency to get someone pregnant. I could even feel a strong intent to impregnate me. Basically, if it’s not fresh, straight out of the gate, there’s no adhesive effect. It’s useless for a match.”

“There’s nothing but things to correct in what you just said.”

“Oops, I misspoke. ‘Me’ should be replaced with ‘women’ in general. Just a simple slip of the tongue. I only meant that I’m included among women, nothing else. Seriously, I misspoke.”

“You didn’t need to clarify that. I already adjusted it in my head. You’re good, don’t worry.”

“I’m relieved.”

While she placed a hand on her chest in relief, I really hope that one day she realizes how insane it is that she knows the properties of her brother’s semen so well. I hope she faces that fact.

I mean, doesn’t that imply she’s been closely observing how my sticky semen turns watery?

What’s your purpose here, anyway?

“Ah! That’s it! Maika! You did it!”

“By the way, your semen’s been the same since our past lives—huh? What’s up?”

“I’ll ignore the ‘by the way’ part, but thanks to you, I’ve realized something huge! The fact that it liquefies quickly means it’s perfect for getting rid of evidence! I can apply it at the start of an inning for a super sticky pitch, but by the end of the inning, it’s watery, so I can just casually wipe it off somewhere and never get caught! Even if it gets crusty on my pants after wiping it, I can just say it’s body fluid—no big deal!”

“Please, consider how awful that would be for someone to hear as an excuse.”

“Come on, who would ever think someone’s rubbing semen on their hands to throw a ball? No one’s gonna figure that out. It’s foolproof.”

“This is your most convincing argument so far… but no, wait. It’s still no good. That doesn’t solve anything! Sure, the chances of getting caught are slim, but I told you, it has to be fresh! ‘At the start of the inning,’ you said, but how are you going to have fresh semen at the start of the inning…?”

She trailed off as if suddenly realizing my intent, staring at me wide-eyed.

“Exactly, Maika.”

“Wait, are you planning to… do it during the game? Right before you step onto the mound? Behind the dugout?”

“Yeah, that’s my bullpen.”

“Why are you trying to sound cool about this?”

But really, what other choice is there?

Of course, letting it all out would be physically and mentally draining in terms of fighting spirit. As a homewrecker, I could ejaculate countless times, but its impact on my pitching is a different issue. Even without considering ejaculation, the sheer amount of fluid loss is dangerous from a dehydration standpoint.

“Still, I see. My semen liquefies that fast. It’s good for hiding evidence, but this means I can only use it for one inning per game. No matter how much I produce, once it turns watery, it’s useless. There’s no way I can ejaculate more than once during a game without overburdening myself. I’ll have to carefully pick the critical moments to use it.”

Saying it like that makes it sound like some kind of forbidden special technique.

“Hm?”

For some reason, Maika tilted her head.

“Why don’t you just let it out little by little?”

“Huh?”

What the hell is she talking about?

“No, seriously. You just need to release what you need at the start of each inning. Keep doing that for all nine innings. Just divide it up. Why are you trying to go all out every time? Are you trying to maximize pleasure? That’s messed up. You’re a pervert.”

“…What… on Earth… are you saying…?”

“I mean! You can ejaculate up to 500 milliliters in one go, right? Just release 50 milliliters before each inning, stop there, and repeat for all nine innings. If you don’t finish all the way, guys stay aroused, right? So you won’t drain your stamina or energy.”

I was holding my head in my hands.

My former little sister, explaining things to me as if I were an especially slow-witted fool, and her lack of sexual knowledge, made me despair at the state of sex education in this country.

In the Japan of our world, where we lived until recently, there might have been even more widespread misconceptions than in a world of NTR games.

“Maika… you didn’t really think… that a man could start ejaculating and then stop and start it again at will, did you…?”

“Huh? That’s… impossible… isn’t it?”

“Of course, it’s impossible! What the hell is ‘ejaculation in small portions’ anyway!”

Blushing furiously, Maika began fiddling with her smartphone while muttering under her breath.

What kind of novel are you writing? That stuff should be banned immediately, Kakuyomu administration.

“Look, there it is, Kyugo! I told you it’s possible! Segmented ejaculation!”

She thrust the smartphone towards me with such force it seemed to make a snapping sound. The search results displayed a list of terms I had never seen before.

“Ah, ‘sweet release’…? ‘Continuous ejaculation’…?”

I opened the page that caught my eye and began reading the explanations written there.

“… I see, indeed, adult film actors must be using techniques like that…”

It seems that it is possible to control ejaculation with training.

Come to think of it, I also had a few experiences where I almost let go during self-tease play but managed to stop abruptly.

“See! I told you it’s possible! Kyugo, you just didn’t know because you’re a virgin! All the couples in the world are doing it in small portions! That way, they can keep the excitement up and play around for a longer time!”

That’s definitely a lie, but indeed, if it’s a ‘sweet release,’ one can maintain stamina and vitality without compromising battle readiness.

“Alright. I admit you might be right this time. I’ll obediently follow your instructions. I’ll train and master this technique within a month. Then, I can use fresh semen every inning to throw the sticky ball.”

“Right? You should’ve just done as I said from the start… Huh? Wait, when did I start agreeing with the semen ball idea? Am I becoming the leading advocate now?”

Thus, I acquired a new weapon to take my beloved sister to Koshien—the sweet release semen ball.

Hmm, I must absolutely ensure that my beloved sister never finds out…!