"Ahh I said, Senior Sister, you can't get used to the way it looks, why do you want to beat me? ”

"This is called beating the 'fart' to show the 'bird', its 'bird' look, the reason why it looks so ugly, the responsibility lies with you, so if I don't beat you, I won't be able to explain it to the people of the whole country." After Lu Xiaoyu finished speaking, her pretty back disappeared outside the door.

"Brother Zhang, what's wrong?" Lu Dayu asked.

"What else could it be? Didn't you hear a sound just now? ”

"I heard the noise, but I don't know where it came from."

"It was my sister who slapped me my ass when she was leaving."

"Haha! Brother Zhang, this stinky girl, why are you beating? ”

She said she was disgusted when she saw her brother's thing, so she ....... Forget it, let's not talk about senior sister. Sister Lu, will our work continue? Zhang Zheng asked.

"Brother Zhang, I think it's better to forget it. It was already a few inches away from the door, and it was about to enter the house, but unfortunately, at the critical moment, it was disturbed by this stinky girl. After her tossing like this, my ** has gradually subsided, Brother Zhang, let's wait for the next time, okay. ”

"Okay, I'll listen to my wife. Anyway, I'm going to Jinghua City soon, and we will get along more and more days in the future, so I won't have time to continue to complete our unfinished business today. ”

"Thank you, Brother Zhang, thank you for your understanding."

"Why are you so polite? By the way, Sister Lu, how do you feel today? ”

"It's a great feeling today, even if I haven't broken through the last line of defense, but I'm already feeling that unforgettable thrill." Lu Dayu lay on his side, hugged Zhang Zheng's strong body tightly and said excitedly.

This is the allure and charm of sex, and it is also the main motivation for human beings to pursue sexual activity with pleasure. A healthy and scientific sex life will make people happy, refreshed and energetic, so it is very necessary to carry out regular activities in this area, both for physical health and work efficiency. Zhang Zheng said.

"You kid really make excuses, does this have anything to do with physical health and work efficiency?"

"Sister Lu, you don't understand this, do you. Studies have shown that the occurrence of many diseases is directly related to the influence of psychological factors. And among the psychological factors, emotional changes caused by problems in sex life occupy an important position. Zhang Zheng said.

"Oh, I only knew that the disease was related to psychological or emotional problems, but I didn't think it had anything to do with sexual factors. Brother Zhang, I'll just take care of you, can you popularize science? ”

"Okay. There is not only a relationship between the two, but also a big relationship. After investigation, medical experts found that 60% of people with disharmony in sexual life suffered from neurosis; In a survey of cancer patients, it was found that more than half of them had a unsatisfactory sex life. There is a large amount of data showing that there are many patients with physical and mental diseases such as gastric ulcers, asthma, hypertension, and coronary heart disease because of sexual quality of life problems. It can be seen how important a scientific and harmonious sex life is to health. Zhang Zheng introduced.

"Wow! I don't know if I don't learn, I'm shocked when I learn, the connection between health and sex life is so close. Lu Dayu was surprised.

"Yes. From a medical point of view, strenuous sexual activity can effectively promote blood circulation and improve the blood supply to the heart, thereby reducing the incidence of heart disease. ”

"Heart disease is known as the number one killer of human beings, and if you have a moderate amount of sex, you can effectively improve heart function, which is a sport worth advocating." Lu Dayu said.

"Haha, I said Sister Lu, this kind of movement doesn't need to be promoted, people are naturally willing to do it, just like this." Zhang Zheng said as he rubbed it on Da Yu's chest with his big hands.

"Haha, what you said is not unreasonable, this kind of sport not only everyone likes to participate, but everyone is self-taught." Lu Dayu said with a smile.

"Haha, what Sister Lu said is very reasonable, in fact, there are many benefits to a moderate amount of sexual life, for example, in sexual activities, the body will release a large number of happy hormone hormones, "hormones" are also known as hormones, which play an important role in regulating the metabolism, growth, development and reproduction of the body. ”

"Ahh Is this substance so important to humans? Lu Dayu said.

"It's true, especially for women, it's even better. For example, the increase in estrogen in women will delay the process of cell decay in the body, thereby prolonging the life expectancy of women. The increase of estrogen will also make the skin shrink and keep a large number of water molecules in the skin base, so that women's skin is smooth, delicate and full of elasticity, which is often said to be the beauty and beauty effect, and your mother seems to be in this situation. ”

"Wow, this seemingly simple sex life not only has the effect of prolonging life, but also has the function of beauty and beauty, which is too tempting for women. Brother Zhang, will we often do this in the future? ”