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Chapter 63 Part 1

Sperm Donation (2) ~Hello, Again~

The contents of the talk about his father, Sakuya, that Rumiko told him were beyond what he had imagined, but there was one point that caught his attention.

「The male-to-female ratio of the children is…?」

Rumiko nodded profoundly at Yuu’s question.

「That is right. There are a lot of boys, aren’t there? When it comes to Sakuya-shi’s children, the male-to-female ratio is roughly about 1:5.」

「I wonder why that is?」

「If the main party, Sakuya-shi, was still alive, we probably would have been able to ask him if there were some sort of circumstances surrounding him. His own DNA has been left behind, so we have been putting it under study. However, no matter how advanced science has become, it seems there are still many things about genes that are unknown, after all.」

In Yuu’s memory, too, he had heard stories about humanity carrying out genetic manipulation on plants and animals as the development in gene-related technology advanced.

However, there was no story in his memory about the use of such technology on human beings prior to his rebirth. Maybe there was in fact such a practice, and Yuu had simply never heard of it.

At any rate, unlike Yuu’s case, maybe his father had reverted back to being a child, but retained his adult spirit, when he was transferred to this world.

Rebirth and transference were novel-like stories in and of themselves, but since it had actually happened to him, it would not be surprising if there were other cases, too.

Closing the file with a snap, Rumiko cleared her throat and opened her mouth after a slight hesitation.

「Even since the decline in the number of boys born came to be unstoppable, there have been various attempts to somehow allow us to give birth to boys, but… Most likely, you are unaware of this, are you not, Hirose-sama?」

「Well… As expected, that is….」

「After it was discovered that it is the Y sperm that produces boys, and that the Y sperm is more alkaline and has a shorter life span than the X sperm, it was recommended to inject alkaline jelly into the vagina in advance and to have sex on the day of ovulation, which is commonly known as the lucky day.」

Yuu was stunned as he suddenly got told such a graphic talk, but Rumiko was still far from done.

「Then, it is also said that it helps if the woman has an orgasm during sex. When a woman receives great stimulation, her cervical canal will secrete alkaline mucus. Which is why, it is believed that if you penetrate deeper into her vagina and ejaculate, the sperm will spend less time in the acidic zone of the vaginal canal, which in turn will increase the fertilization rate of the Y sperm.」

「I, I see….」

「In other words, what I am trying to say is that it is believed that the probability of bearing a male child will increase if we can have the man do his best, but in reality, it is not so easy, you see… However, it is said that Sakuya-shi was amazing in this respect. Do you understand what does that mean?」

Rumiko leaned forward and not only looked at Yuu, whose eyes widened, but also licked her tongue.

Somehow, she looked like a ravenous beast that was aiming for its prey.

「In other words… The greater the pleasure the woman felt, the higher the probability for her to give birth to a boy?」

Somehow feeling like he couldn’t afford to back down here, Yuu answered without looking away, and as he did so, Rumiko smiled happily.

「Fufufu. Well, I would not say that is the only reason, though. There is no doubt that Sakuya-shi was an extraordinary person in a lot of ways. And his sons – your elder brothers, I mean – tend to have their interests piqued by women more easily than most men, although there are some individual differences. In fact, most of them get into sexual relationships at an early age and have children before they turn 20. Statistically, it has also been discovered that the probability of boys being born is higher than normal. However, they don’t seem to be as prominently lecherous as their father.」

「Which means the children inherit some of his qualities, but weaker?」

「That may be so. Then, Hirose-sama, given that you are one of that Sakuya-shi’s sons, I have some questions for you, but are you okay with it?」

「Yes. That is fine.」

She was still leaning forward, but her expression had taken a complete turn to one of seriousness.

Yuu also straightened up his posture.

「From now on, I will be asking you very private and in-depth questions. I will not put them in the record. It is fine even if you don’t want to answer them, or if you do, simply replying with yes or no will suffice.」

「I understand.」

「Now then… It may be sudden, but… Hirose-sama, you have experience in sex, right?」

It was truly sudden, or rather, he felt like she was asking him that with conviction.

「Yes.」

「Have you ever experienced sex with more than one person before?」

「Y… Yes.」

「To put it bluntly, do you like women?」

「Yes!」

Maybe it’d be fine even if I don’t answer these questions, but not only is there no one else to listen to it, it’s not like it will be put in the record either, so I guess it doesn’t really matter; so Yuu stepped up to the challenge.

Unintentionally showing a smile on her face, Rumiko continued with her question.

「During sex, do you think the woman you have sex with has an orgasm? Or have you ever heard the woman herself clearly say that she is cumming?

「Err, well, yes.」

「Fufufu. Then the last question.」

Saying so, Rumiko then took off her glasses and looked straight at Yuu.

「Or rather, this is an extra question, so feel free to answer it however you like. There happens to be a bed over there, right? What do you say about having sex with me now? What if I were to ask you that?」

Yuu was surprised at the sudden invitation, but she probably wasn’t serious about this. It was probably a hypothetical question.

Now that she had taken off her glasses, he could see her face clearly, but… Sporting a pair of clear eyes, she had a mole right next to her right eye, and coupled with her full lips, she looked very sexy.

If he lowered his eyes a little, he could see a deep cleavage peeking out beneath her chests, where the collarbone was popping out because she was leaning forward.

In contrast to her large, protruding breasts, her waist seemed to be tight.

She had uncrossed her legs and opened them a little, so even the risqué parts of her thighs were exposed, but regrettably he could not see her panties.

Yuu nodded his head vigorously.

「With pleasure, allow me to keep you company.」

「Oh my! Even though I am an auntie that is fifteen years older than you?」

「Heeh, you don’t look that old to me, though. You are pretty attractive in my eyes, Inui-san.」

「Fufufu. Even if that is just flattery, it still makes me happy. It is not like I have collected all the evidence, but… Personally, you see, I believe that of all Sakuya-shi’s sons, the one who is closest to their father in nature is you, Hirose Yuu-sama.」

「Heeh… Is, is that so…?」

「Be that as it may be, I have no intention of doing anything about it right this instant. At any rate, I wanted to have a talk with you today. And then, I am glad we did. Thank you very much for your time today.」

Saying so, Rumiko held out her right hand.

It was not manicured, but her neatly trimmed nails were shining.

Yuu also put out his hand and shook her hand.

「I wonder if I may see you again and ask you some other questions? Perhaps I might ask you for a favor, though.」

「Well, as long as it is something I can do.」

「Ufufu, I look forward to working with you.」