I Went About My Life Normally Without Noticing It Was a World With Few Men, and Things Went Terribly Wrong - 14

Chapter 14: The Error in the Semen Sensing Reflex

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“…I wonder. The experiment was a success and the results were better than I expected. Of course, my daughter is not using drugs. I believe Shirasago-kun’s suspicion has been cleared.”

Having been the first to recover, Yoshino-sensei gathered her thoughts and explained to the detectives.  Oh, right. My desire to ejaculate inside Celly and see her climax had taken precedence, and I had almost forgotten about Yuka-san’s situation.

From the start, the sample size was only two. It was far from verifying the proposition that “a woman climaxes when she receives an ejaculation directly at the cervix.” To publish this as a scientifically recognized paper, there were still absolutely not enough cases.

However, the suspicion against Yuka-san had been based on insufficient evidence to begin with. This single case was enough to dispel the doubts surrounding her. The detectives bowed to Yuka-san, each apologizing for the false accusation, and then promptly withdrew.

“Thank goodness… Thank you, Hikari-san! And thank you very much, Professor.” 

“Think nothing of it. It was a byproduct of my own research after all. Rather, it is I who should be grateful. Wago-kun has taught me many things. I cannot thank him enough.”

The professor wore a look of pure joy. She was exulting over the numerous new discoveries gained today, saying things like “The prevailing theories will be rewritten” and “This is the dawn of a new era.”

“The discoveries are one thing, but above all else…”

As she started to say that, she looked at me. Or rather, at me and the daughter who was currently riding and clinging to me. Due to the Semen Sensing Reflex, she was still sandwiching me between her thighs and wouldn’t let go. Whether she was conscious or not, she kept her face down and remained as she was.

“… it is the fact that you loved my daughter. Does this mean I will finally have a grandchild? I had thought I might never obtain one.” 

“Ah, no, the pleasure was mine… For taking your precious daughter.”

It seemed certain that Celly had been impregnated by this. 

Does this mean I’m going to become a father of two in a single day? Should I call the professor “Mother-in-law” from now on? I still don’t understand the subtleties of such things at all. I have to get used to this world quickly.

“What are you saying? My daughter is but a lowly one. She is hardly a match for a superior man like you. I feel almost apologetic for pushing her onto you. …Is it truly alright?”

She said that she had palmed her daughter off on me under the guise of an experiment and, belatedly, felt she had done a bad thing. Yoshino-sensei appeared to be saying this in total earnest. How could Celly—a half-Japanese girl who was an extreme beauty, a French-Japanese bilingual, and a brilliant medical student—be considered lower than someone like me?

I could only think that this was due to the circumstances of this world. In a world where men were small, weak, and lethargic, I had appeared. A 175 centimeters tall man with a “monster” 14-centimeter dick, and a rare intellect that made me the “only” one to pass the top university in Japan. Furthermore, I was a precious male who felt no distance toward women and was proactive about sex. Among those traits, I personally only had the university acceptance to boast of originally, but in this world, I had become a being of “super-specs.”

In contrast, what of Celly’s charm as a woman? Her intellect was likely valued here too. It was the equivalent of a man’s high educational background in the previous world, but in terms of beauty, it seemed they treated it as if there wasn’t much to her beauty. The average level of appearance was high overall. By the way, the tall Caucasian Germaine Yoshino-sensei was about the same height as me, but her daughter Celly was over twenty centimeters shorter and had smaller breasts. This was clearly the work of the blood of her Japanese sperm donor.

And as it turned out, mixed-race people were actually disadvantaged in this country right now. It wasn’t that there was discrimination or bashing in daily life, but their priority was lowered in marriage or sperm bank matching, and the prospect of obtaining a man or his sperm was apparently small.

Why did it turn out like that? Historically, Japan in this world had always maintained a slightly higher ratio of males compared to other countries. Because of that, while Japan had often been targeted in wars throughout history, it had somehow managed to survive due to geopolitical reasons. However, with recent internationalization, foreigners had been flowing in seeking men for less than a century now. 

A conservative opinion had risen among influential people in recent years, feeling a sense of crisis that the original blood of the Japanese ethnic group could no longer be maintained. Thus, a sort of eugenics-like trend was strengthening, prioritizing pure-blooded Japanese for matching with men. Twenty years ago, when the French Germaine-sensei obtained Mr. Yoshino’s sperm and became pregnant with Celly, it seemed to be the last era when they still provided Japanese sperm for overseas use.

There, one thing clicked for me. It was the fact I’d been thinking about earlier, that the average level of appearance was high. As I just heard, this must be because interbreeding with foreign genes had progressed over the last century or so.

Well, for those reasons, while Celly was “ultra-high-spec” from my perspective, her mother had been worried as a parent that her chances of ever meeting a man were very low as things stood. She had even begun considering abandoning her position as a professor in Japan to return to her home country for her daughter’s sake. To put it bluntly, she said Celly was “dead stock.”

“I see. I understand the situation, but even so, I find Celly to be a very lovely woman. Please don’t say things that belittle her so much.” 

“…Hmph. I see, my apologies. …My daughter is a lucky girl to have met you.” 

“Haha, not at all. …Ugh.”

Even though I was the one feeling intimidated by such a genius beauty, it felt awkward to be treated like a humble, fine young man just for saying that honestly. To cover it up, I stroked the hair of Celly, who was clinging to me as if asleep. Then, her vagina tightened again, wringing out the remaining semen, and Celly gave a jolt at the same time.

“What is it? …Is she still milking you? Honestly, I wonder who this girl took after.”

Yoshino-sensei said this in amazement. However, that question gave me some food for thought. Since Sensei herself hadn’t given birth through sex, she didn’t know if her daughter’s genitals or sex drive resembled her own. Perhaps curious, Sensei peered toward her daughter’s rear to observe the union, and after a brief disclaimer, she touched my scrotum.

“These testicles are also incredible. Huge, heavy, and solid. They must produce a vast amount of thick semen. …Did you ejaculate very deep? Not a single drop is leaking out.”

I was certain she meant it as a compliment, but how was I supposed to react? Just as I was thinking she was staring and touching the area where the penis was inserted to observe it, Celly suddenly sat up.

“Mama, don’t touch weird places.” 

“Oops. You’re finally awake, you spoiled girl.”

She had been spreading the labia minora wide to see inside and check if semen was leaking. It seemed even Celly couldn’t bear that.

“Since this will be data for the experimental report, Celly, you will compile your impressions of receiving the ejaculation into a report later.” 

“Okay. …But I don’t remember much. I need to do a few more follow-up tests to get used to it.” 

“Very well. Be sure to note them down each time.”

In other words, she was going to write an essay about her impressions of climaxing from multiple internal ejaculations. A scholar mother and daughter discussing such an outrageous thing with total seriousness. Saying she would write down her initial notes while they were as vivid as possible, Celly stood up abruptly. My penis slid out with a “shloop” sound, and her gaping vaginal opening twitched as it gradually closed.

“Huh? Why did it come out normally?”

Only about forty minutes had passed since that massive climax, and the final bit of semen had been wrung out just a few minutes ago. As someone who had called an ambulance because of Yuka-san’s rigidity, I felt an enormous sense of incongruity. Yuka-san, who had been dozing in the chair by the bed, was also a step behind in her surprise. 

However, since the Semen Sensing Reflex was usually said to last from several minutes to several dozen minutes, it wouldn’t be a contradiction if one considered Celly to be on the very short end of the spectrum. Just as I was about to accept that, Yoshino-sensei explained that it was something else.

“Ah, that much is clear. Actually, ‘Semen Sensing Reflex’ is a poor name for it. Accurately, it should be called the ‘Ejaculation Sensing Reflex,’ or perhaps the ‘Male Climax Sensing Reflex.'” 

“What’s the difference?”

The term “Semen Sensing Reflex” had been used in this world for a long time, and it had persisted to the present day with its inaccurate name.

The difference was that women weren’t actually detecting the semen itself. Rather, they instinctively sensed that the man was about to reach a climax, including the micro-movements of the penis and, depending on the person, changes in facial expression or perspiration. Therefore, even if semen didn’t actually come out in the end, the woman’s reflex would still occur and the rigidity would begin.

“It is a lamentable thing, but such cases are on record. Cases of women who had sexual acts with boys before their first nocturnal emission and brought them to a climax.”

It was a real-life “Onee-Shota” scenario, but that woman was, of course, arrested. It must have been traumatic for the boy, but I, in my indiscretion, couldn’t help but honestly think I was envious of the boy.

Conversely, even if semen was released, if it was not accompanied by a male climax—what we might call “leaking” or “precum” in my terms—this would not trigger the woman’s reflex. This, too, was apparently discovered from a rape case. A man who was being gang-raped by several women did not cause the woman to go rigid when he ejaculated for the umpteenth time. 

Consequently, the woman continued to violate the man without noticing, but just then, the police raided the scene and apprehended them. Even though the woman hadn’t gone rigid, when he was pulled out, semen dripped from her vagina, so it was confirmed that the semen itself has nothing to do with the rigidity. Again, I felt bad for the man, but it was an enviable story. Well, assuming the women were beautiful, that was.

Because it was such a clearly misleading term, Yoshino-sensei lamented that she wanted to lobby the academic community to rename it. However, because sexology was considered a niche and was not prioritized even within medicine and science as a whole, the necessity of a name change was rarely recognized. Well, considering the overwhelming majority of women had no opportunity for sex in the first place, it was probably unavoidable that the general public thought the accuracy of the name didn’t really matter.

So, to return to the point: Celly’s rigidity count was forty minutes starting from the first ejaculation, which wasn’t particularly short.

“I don’t know exactly how many minutes it was for Celly, though. She might have been pretending to be asleep even though she could have pulled out long ago.” 

“…I wasn’t.” 

“Heh, well, let’s leave it at that. Forty minutes is only slightly longer than average. Considering she was a virgin, it’s within the general range.”

I witnessed a heartwarming banter between mother and daughter. By the way, I felt like I just heard another very interesting and important piece of information.

“Does being a virgin have something to do with it?” 

“Yes. There is a significant correlation where women with less experience have longer rigidity times.”

Ho. This was good news. That meant the reason Yuka-san’s was long enough to warrant calling an ambulance would likely improve as we spent more days together.

Yuka-san, who was listening nearby, must have realized this as well. She joined the conversation with great enthusiasm. After all, she had been the one to cause the trouble, so there was no way she wasn’t worrying about it. Perhaps I should have thought about her a little more.

“Th-Then! It’s okay for me to keep doing it with Hikari-san in the future!?” 

“Hmm, I cannot give a guarantee since there are individual differences, but I can say it should become shorter than it is now.” 

“I see… Is there any way to make it shorter?”

In response to Yuka-san’s serious question, Yoshino-sensei explained what was known. According to the professor, besides being a virgin, the psychological aspect couldn’t be ignored as a factor that lengthens the rigidity time.

The Semen Sensing Reflex was a physical function that developed to instinctively prevent the man from escaping and to increase the probability of pregnancy. Conversely, if a sense of security was fostered—knowing that this man would never run away and would stay by her side—the time would gradually shorten.

Doesn’t that mean the more “clingy” or “menhera” someone is, the longer it lasts…?

And one other possibility. If the body believed there was a low need to get pregnant, the reflex became unnecessary. In other words, one could hypothesize that it would shorten for a woman who had already given birth to several children, but this had not been verified because there was not enough data. After all, few women had several children because sperm was so precious.

“Thank you very much! I’m starting to feel hopeful.”

Yuka-san gave her thanks at that. After all, we couldn’t call an ambulance every time we did it. I was relieved to know it didn’t seem like I’d have to stop doing it with Yuka-san. I should do what I can, too. Specifically, making Yuka-san feel secure. That would be my duty as a husband.

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T/N: Making a menhera feel secure…. Good luck, MC.