Early the next morning, Duan Yu took a brush to write and paint, used half a dozen pieces of paper, and finally mastered the use of a brush and drew a sketch of a character.

Looking at the portrait of Dongfang Yu, Duan Yu inevitably felt nostalgic again.

Reluctantly rolling up the picture scroll, Duan Yu came to Duan Zhengchun's room, but was told by the maid that Duan Zhengchun went to the palace. Duan Yu asked the maid to wait for Duan Zhengchun to come back and then inform him.

Duan Yu came to Mu Wanqing's room again, knocked on the door, and said, "Wan'er, are you there?" ”

After a few breaths, Mu Wan's cold voice came: "What's the matter?" ”

Duan Yu said: "I'll come to see you." ”

After a while, Mu Wanqing never spoke again.

Duan Yu said, "Then I'm in!" ”

Duan Yu pushed the door and walked in, and saw Mu Wanqing sitting on a chair in a daze.

Walking up to her and sitting down, Mu Wanqing glanced at Duan Yu with a somewhat dull gaze, and then continued to be in a daze.

Duan Yu looked at Mu Wanqing's sluggish appearance and felt distressed, if it weren't for the fact that the people in the palace were talkative, he would have come to Mu Wanqing last night.

Duan Yu stretched out his hand and put it on Mu Wanqing's hand, and said, "Wan'er, do you know why the world doesn't allow brothers to marry sisters or brothers to marry sisters?" ”

Duan Yu thought about it for most of the night after returning from Duan Zhengchun's last night, and he thought that the reason why Mu Wanqing didn't believe that he would definitely be able to marry her was because he had nothing to say, and only a dry promise could not win her trust.

Duan Yu thought of some of the means used to deceive people in later generations, that is, to have something to say, whether it is true or false, it must be conclusive, there will always be people who believe.

After thinking hard for half the night, Duan Yu finally thought of a way to make Mu Wanqing believe in him.

Mu Wanqing's eyes were no longer so dull, and she thought for a while: "This has been the case since ancient times, where is the morality of morality, what is the reason?" ”

Duan Yu shook his head and said, "It's not without reason, this is about the theory of human genetics." If a man and a woman are combined, the male Yuan Yang and the female Yuan Yin will be combined to become a fetus, and the fetus will be pregnant for ten months before the woman can give birth. ”

Mu Wanqing's face was already crimson when she heard this, she was a virgin who had never been a human being, she had lived with her master since she was a child, where did anyone tell her about this? She had never even heard of how to perform the courtesy of Zhou Gong.

Mu Wanqing said shyly: "What are you talking about, don't say it." ”

Duan Yu smiled slightly, his heart said that the physiological knowledge of the ancient people was too scarce, and then said: "It is naturally useful to say this, you can listen to me." ”

"A man's Yuan Yang carries a man's genetics, and similarly, a woman's Yuan Yin also carries a woman's genes. Well, the so-called genetics, you can understand that an adult's appearance, personality, temperament, and martial arts talent are all determined by genes, and they are all passed on to future generations through genes. Whether the fetus is male or female is also determined by the genes in Yuan Yang and Yuan Yin. Therefore, anyone's appearance, personality, and talent are determined by the genetics of half of each parent. This is the truth that the tiger father has no dog son. ”

Mu Wanqing was ashamed, and the roots of her ears were red, but she still nodded lightly, signaling that she had listened.

Duan Yu continued: "A person's genes can be divided into twenty-three pairs, the man's Yuan Yang and the woman's Yuan Yin each take half of it, and then combine it with the other party's half, and then become twenty-three pairs, which is the essence of male and female children. ”

"Brother and sister have too many genes that are inherited from their parents, and if there are too many genetic similarities, the child born is stupid by nature. This is the reason why brother and sister cannot get married. ”

Mu Wanqing obviously needed some time to digest Duan Yu's words, she had not received the education of the next generation, and it was not easy to understand these.

After the tea time, Mu Wanqing seemed to realize something, her eyes flashed, and she looked at Duan Yu and said, "You mean that it is because the children born are not smart enough that the brothers and sisters cannot get married?" ”

Duan Yu nodded, he didn't know how people formulated human ethics in the first place, maybe there was a reason, but once the concept of human ethics was formed, the reason was not important.

Just like the current "fairy sister" Wang Yuyan, she should be thinking about marrying her cousin Murong Fu, but if she comes to the world of Duan Yu's previous life, if there is a pair of cousins and sisters forming a family, it will definitely be a sensational event for the whole society.

Mu Wanqing continued: "Then we ...... You just let Zhong Ling's girl give you a baby! ”

Duan Yu was stunned, he didn't expect Mu Wanqing to think of this so quickly, which made him realize how deep Mu Wanqing's love for him was, and he even didn't hesitate to give up the most important thing for a woman.

Duan Yu nodded and said, "You and I are not a mother, in fact, our similarity is not high, only children born to men and women with the same father and mother will be stupid." But the world only talks about humanity, and will not look at whether the child you give birth to is stupid. ”

What Duan Yu said earlier is true, but this paragraph is mixed with water, if it is really a half-father, there is not much difference between it and the same father and mother, and genetically it is absolutely impossible to get married. But Duan Yu actually has no blood relationship with Mu Wanqing, and this panicked person is also at ease.

Mu Wanqing did not doubt him, and said seriously: "Then let's go to seclusion, as long as we don't meet outsiders, who can hinder us." ”

Duan Yu shook his head and said, "You haven't officially joined the Duan family yet, and in the eyes of outsiders, you are not my sister." Only my father, my mother, and your mother, who know your true origins, are the ones who stop us from being together. ”

Mu Wanqing frowned, stretched out again, and said, "Then wouldn't it be good for you to tell your father and mother these words?" ”

Duan Yu smiled bitterly, do you think everyone is as naïve as you?

"They won't believe that. And I'm not saying this to convince them, just to let you know that you and I can be together. As for them, if you want them to acquiesce in my marriage to you, you have to keep them speechless. ”

Mu Wanqing looked at Duan Yu in disbelief, and said half-loudly: "Are you going to kill them?" ”

Duan Yu almost fell to the ground: Do you have to fight and kill in your mind to solve the problem?

"Of course not, they won't believe me now, but if we become the first class people in the world, they can't help but not believe it."

Mu Wanqing heard that Duan Yu didn't mean to kill, so she breathed a sigh of relief and said, "Then what kind of person is the first-class person in the world?" ”

Duan Yu said lightly: "In the martial arts, it is natural that people who are the first class in martial arts and the first class in prestige. Above the temple is the person who sits at the highest point of the Golden Luan Temple. Dali established the country by force, and I am afraid that it is necessary to have both of these to be regarded as the first class of people. ”

Mu Wanqing pondered: "Do you mean that you want to become the number one master of martial arts, and you have to be the emperor?" ”

Duan Yu pondered for a moment and approved Mu Wanqing's words.

Mu Wanqing frowned and said: "Uncle has no heirs, and my father only has one son, Dali's throne will be passed to you sooner or later, and it will not be difficult for you to be the emperor." It's just that it's not so easy to become the number one master in martial arts, there are so many people in the martial arts, everyone wants to be the first master, but there is only one first. Even if you have cultivated, I'm afraid you'll be seventy or eighty, what's the point of you marrying me again at that time? ”

Duan Yu said in his heart: It's just that inheriting the throne of Dali can't shut up those people, at least the monks of Tianlong Temple don't have any reverence for Duan Zhengming. But for the sake of An Mu Wanqing's heart, there is no need to say this to her.

Duan Yu pretended to be relaxed and said: "The first place in martial arts is not as difficult as you think, I am confident that I can do it before the age of thirty." ”

His words were put in the martial arts for fear of making people laugh, but Mu Wanqing believed it unconditionally, the gloom in his heart seemed to be swept away, and he said with a smile: "Thirty years old?" I was a year younger than you, and I was twenty-nine at that time, and I was an old girl, but I was a teacher...... Mother's appearance, she is still so good-looking at the age of thirty-six, and I must still be beautiful at the age of twenty-nine, and I will definitely be worthy of you at that time. ”

After saying this, Mu Wanqing realized that she was happy to say everything in her heart, as if she was waiting for Duan Yu to become the number one in martial arts, and then marry him.

At the moment, he didn't dare to look at Duan Yu again, and lowered his head half ashamedly and half happy.

Duan Yu finally breathed a sigh of relief when he saw that she had finally untied the knot in his heart, the innocent attitude of the woman in front of him made a fire rise in his heart, his right hand grabbed Mu Wanqing's waist, his left hand lifted her chin, and he bent his head and pressed her red lips fiercely.

The sudden kiss caught Mu Wanqing off guard, and her mind went blank, and she just closed her eyes obediently, as if everything was taken for granted. She forgot to think, and she didn't want to think, she just instinctively hugged Duan Yu.

The two had already had a more intimate contact in the stone chamber of the Valley of Ten Thousand Tribulations, but at that time, Mu Wanqing was delirious, and Duan Yu had to concentrate on resisting the dual pressure of internal and external pressure.

With this kiss, the two of them let go of their hearts, no longer have burdens and worries, and they feel that there is nothing more fascinating in the world than this.

After a long time, Mu Wanqing "mumpered", and the two slowly separated their lips together, Mu Wanqing seemed to feel too dissolute, and shrank her head into Duan Yu's arms in shame.

Duan Yu smiled slightly, stroked Mu Wanqing's back, and said, "Don't tell others about these things first, even your mother, because they won't believe it, and they can only add to their troubles." ”

Mu Wanqing nodded, and said with some distress: "Aren't you and I going to be brothers and sisters for ten years?" ”

Just now she felt that there was a solution to the matter, and it was also excellent to marry Duan Yu at the age of twenty-nine. At this time, I tried it for the first time, and I felt that if I had to pretend to be a brother and sister for the next ten years, I would no longer be able to experience the feeling of going straight to the heart for ten years, which was too tiring.

Duan Yu smiled: "It's just for show, on the surface we are brothers and sisters, who can control us in private?" ”

Mu Wanqing understood Duan Yu's words and arched her head in Duan Yu's arms.

Having solved a big problem, Duan Yu couldn't help but thank him for not doing nine-year compulsory education in his previous life, allowing him to convince the current people with advanced theories.

Mu Wanqing was the first time she was in love, and the two didn't go out all morning until the maid knocked on the door and asked them to eat.

After having lunch in Mu Wanqing's room, Duan Yu remembered something and said: "Wan'er, I have a set of exquisite footwork to teach you, you have seen it, I use this set of footwork when facing the enemy, called 'Ling Bo Weibu', after you learn it, it will be of great use to save your life at a critical time." ”

Mu Wanqing has nothing to do, she only feels that her Duan Lang is better to her.

Duan Yu taught 'Ling Bo Weibu' in Mu Wanqing's room, and Mu Wanqing seemed to be a different person, no longer cold, and the corners of her mouth were always smiling.

The two teach one and learn the other, and it is inevitable that they will "bump" with each other when walking, but both of them enjoy it.