I'm really immortal

Liu Changan had never had a child with a woman, and of course he had never given birth to a child, let alone split an offspring.

When he was not a human being, he had no animals or plants that inherited his genes or some kind of origin.

From the standpoint of any creature that needs to rely on reproduction to pass on life and maintain the existence of the race, this process is of extremely great significance.

It is not a great epic that can be described by any words, poems, film and television works, novels, plays, etc.

Since the birth of life, many ethnic groups have gone through many disasters in order to reproduce and pass on their lives. They have struggled to survive in the face of countless crises and catastrophes, looking for the slightest opportunity to pass on their lives.

No matter how dangerous or difficult the environment is, there is always a hymn to life. Deserts, snow-capped mountains, volcanoes, and deep sea trenches are filled with countless lives on this earth, which is neither big nor small.

There are also many ethnic groups that have been exterminated, because the inheritance of life is definitely not a matter of course.

The extermination of some races is even just a matter of bad luck.

Liu Changan witnessed with his own eyes the disappearance and hiding, prosperity and growth of countless lives, and even witnessed some creatures becoming completely unrecognizable over the long years.

As an observer, this is a very interesting thing, no less than feeling the changes brought about by the movement of the earth's crust.

But he has no descendants to inherit, and he doesn’t need inheritance, because he is inheritance,

Even so, he has tried it, tried it with countless women, more than thousands... none of them can give birth to a child or anything else with him.

"It's not their problem that they can't have children with me, but my problem." Liu Changan shook his head, "Neither can you. You have been with me for so long, and you have never taken any contraceptive measures, and you are not pregnant. You’ve had sex with children, don’t you know this?”

Su Nanxiu raised her hand and gently stroked her belly. Although there was nothing inside, as a woman, creating life and gestating in her belly with the person she likes is the most sacred expression of the beauty of life. Way.

"Just because I couldn't do it before, doesn't mean I can't do it now." Su Nanxiu tilted her head and looked at Liu Changan, lifted her skirt, "If you don't believe me, try it."

The hem of Su Nanxiu's skirt just pressed the instep of her feet. Her hands were clenched into fists to hold more fabric around her hips. The hem of the skirt swayed to reveal a delicate calf. Then the side seam of the skirt parted, revealing a smooth and slender leg. The legs are vaguely visible.

With a girl's body, mature women show off their charm in small movements that they are good at.

"I have tried it with you countless times, so let's not talk about these things." Liu Changan was not tempted and just smiled, "Besides, how can you try this kind of thing casually?"

There are many things that we already know are hopeless, so how can we casually arouse the desire to try again? What's more, the person he was trying on was Su Nanxiu... once he tried it with her, could he still lift up his pants and deny it? That is simply endless trouble.

Su Nanxiu turned a deaf ear to Liu Changan's rejection, but a faint blush crawled up her neck, crawling and crawling, as if her sheets were soaked in water that night and stained.

"The past was before, the present is now..." Su Nanxiu came over, tugged on Liu Changan's sleeve, and then let go, showing a confident look, "You couldn't have children with other women before. Because there is reproductive isolation, and their fragile bodies are unable to support the offspring of the immortals."

Liu Changan looked at the delicate figure of Sun Nanxiu. Of course, the appearance of this soft girl was only superficial. Su Nanxiu had obtained the ability of the vampire Mrs. Karnstein. Did she mean that after her body transformation, she would have the ability to conceive with him? The ability of future generations?

"For eukaryotic organisms, no matter how different they are in morphology, reproductive isolation is the key to whether two groups can truly differentiate into different species. There are many types of reproductive isolation, such as ecological isolation, mechanical isolation, behavioral isolation, etc. Wait...just like elementary school students know that red crickets look almost the same as Fulton crickets, but because they have different chirping sounds, they will not mate." Su Nanxiu frowned slightly and thought for a while, "If you say that, If it is difficult to understand, let me give you a suitable example. Nowadays, many men and women communicate on social software, but many men have not noticed that their emoticons are not coordinated and harmonious with the women they are pursuing. Or they have different styles, which will make it difficult for them to reach a unanimous intention to mate. In fact, this is also a manifestation of reproductive isolation."

Liu Changan opened his mouth. This was the first time he heard such nonsense about reproductive isolation.

"You don't need to explain to me. I am a biology student, and I have also communicated with Professor Crick. I am not a primary school student who needs popular science." Liu Changan felt that Su Nanxiu's example was too inappropriate. For example, he sometimes An Nuan was given an emoticon that read, "Online connection, cherish this relationship," paired with sparkling golden roses.

He believed that he and An Nuan had reached a consensus on some kind of intimate behavior in the future.

"I know you must have thought about the issue of reproductive isolation, but most of your research has focused on issues such as genetic structure, genotype frequency and gene frequency. You have not considered the nurturing environment that the mother can provide. The instinct of genes is to reproduce. , but if the pregnant woman dies during the reproduction process and her genes cannot be passed on, her genes will instinctively reject the inoculation of her eggs and turn them into fertilized eggs."

"The gestation period of our children may be more than a short 266 days, it may be 2666 days, or even longer... How can ordinary women survive such a long pregnancy? What's more, we During the growth process, the child's nutrition and burden on the mother's body should far exceed that of an ordinary fetus. What ordinary woman can provide it?"

Su Nanxiu looked at Liu Changan who looked thoughtful, took his hand and placed it on his soft belly.

Feeling the softness and gentleness of the tentacles, Liu Changan's palm had pressed on it and stroked it gently countless times, as if his palms also had memories. Liu Changan came back to his senses, raised his head and looked at this familiar face in a daze.

He took out his palm. If he had known this, why did he do it in the first place?

"If that's the case... you can't afford it, and you can't provide it." Liu Changan shook his head, "You think you are no longer an ordinary person, but in my eyes, there is not much difference between you and ordinary people."

"How will you know if you don't try?" Su Nanxiu felt that Liu Changan's attitude was too unpositive, which was completely beyond her expectation. Fortunately, he was once a scientific researcher. When exploring unknown areas, shouldn't he be brave enough to try and actively try? It was so irritating that he refused her suggestions without even trying them.

"I also have children that I like. If we breed them purely for scientific research needs, I don't have a very strong will. You suddenly make such a suggestion, which is difficult for me to accept." Liu Changan showed a smile on his face, "Not to mention looking at Look at your Zhu Juntang. When I think about how if I had a child with you, I would be raised to look like Zhu Juntang, so I think it would be better not to have this child."

Su Nanxiu was speechless for a moment and couldn't think of how to refute such a view.

"Let's talk when we have time." Liu Changan waved his hand and walked out of the warehouse.

Su Nanxiu came back to her senses and knew that there was no need to rush such a thing, and he might not be tempted at all... A hundred years have passed, so what's the hurry?

Su Nanxiu followed Liu Changan back to the house on the ground with an expressionless face, and watched Liu Changan walk out. Su Nanxiu called Zhongqing, her voice became mature and cold: "Zhongqing, ground Zhu Juntang for a week!"

"Ah, why?"

"No reason!"

The other party hung up the phone. Zhong Qing looked back at Zhu Juntang, who had just returned from Zhonghai and was bossing the "master" around with a plate in his mouth. Did the third lady do anything to make the third wife angry? ——

The book review event has started again. This time the rewards are still extremely rich, and very rare surprise rewards will be provided. You can pay attention to it.

Many people like to read while reading, and they also like to criticize others. I can’t understand why Liu Changan is so cold to Su Nanxiu? Try your girlfriend drugging your sister to make her sleep with a man she doesn't like, and you still choose to forgive him? Everyone calls Liu Changan a scumbag, a dog, right? Licking a dog? It must be dog licking, right? Remember to lick the dog's house.

In fact, you are free to do this if you want, but I don’t want to write a male protagonist like this.