[My Mother and I Demonstrate Sexual Intercourse] (Part 1) Chapter 1

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Chapter 1: My First Sexual Intercourse Demonstration Lesson

This happened during my third year of vocational nursing school. That June, after the graduation exams, I was bored at school

and went to see my first-year homeroom teacher, Ms. Chen. Ms. Chen had always been very kind to me, and I was very grateful to

her.

I sat in Ms. Chen's office for a while, casually chatting about the past. Our conversation drifted to

her recent anatomy class. She mentioned that her current class was entirely female, and they were struggling to learn.

She asked if I could help tutor the younger girls. Of course, I said no problem, because Ms. Chen was my favorite

teacher and the most beautiful teacher in the school. I was naturally

obliged .

At the time, Ms. Chen was about thirty-four or thirty-five years old. Although she was married, she was still stunningly beautiful. When she taught

our class, I was the class monitor, and she never hid her favoritism towards me, which even aroused the jealousy of many boys in the class.

Unfortunately, she only taught me for two years. In my third year, a male teacher took over, and Ms. Chen returned to teach her current first

-year .

I asked, "What do you need me to do?"

Teacher Chen smiled and said, "Just give a demonstration for the female students."

"A demonstration? What kind of demonstration?" I couldn't recall ever having a human anatomy demonstration class

!

Teacher Chen smiled and said we'd find out later. Seeing she didn't want to elaborate, I didn't ask any more questions. Teacher Chen

also asked me to bring my mother along, saying she could treat us to dinner after class as a thank you for my help.

I didn't want Teacher Chen to treat me, but then I thought, wouldn't this be a good opportunity to build a

closer ? And I could also return the favor! So I agreed.

My mother's name was Huang Meilian, a doctor, thirty-eight years old at the time, 1.68 meters tall, with measurements of

35-24-36—a standard model figure. I was eighteen then, 1.78 meters tall, weighing

69 kilograms, handsome and considered a good-looking man by everyone.

The next morning, my mother and I went to Teacher Chen's office. Although her office wasn't large, it

was her own private space, simply furnished but very clean.

"Hello, Ms. Chen! This is my mother."

I introduced them to each other. Ms. Chen looked at my mother and couldn't help but praise, "Li, your mother

is truly beautiful!"

My mother smiled slightly and said, "Ms. Chen is very pretty too!"

Ms. Chen made tea for us and said, "Please wait a moment, this class isn't over yet. My anatomy class is

next ."

So my mother and I drank tea and chatted, and soon it was time for class to end. The classroom next door suddenly became

lively . Several girls came to the door of Ms. Chen's office and peeked inside.

"What are you looking at? Don't you know that's very impolite?" Ms. Chen said sternly.

One girl stuck out her tongue and said, "Didn't the teacher announce that the next class is an anatomy demonstration class? We want

to see the human model first." "

Teacher Chen chuckled, "Alright, you've all seen it, are you satisfied?"

The girl asked with a smile, "Teacher, there are two people here, which one is today's human model?"

"You're all girls, so of course the human model I invited is a man!"

Just then, the bell rang, and the girls all rushed back to the classroom. Teacher Chen also stood

up and said to my mother and me, "Please come with me."

The classroom was next door. When we followed Teacher Chen into the classroom, there were already more than thirty girls sitting inside;

there wasn't a single boy in the entire class.

Teacher Chen asked my mother to sit down on a chair, and then asked me to stand in front of the podium.

"Classmates, today we are fortunate to have Li Xiaoming, a senior student, to be your human model.

Later, you can learn about the differences between men and women by observing the male body."

The more than thirty girls in the audience applauded together.

I suddenly felt something was wrong, but it was too late to regret it now.

"Li, please take off your clothes." Teacher Chen nodded to me.

I reluctantly took off my only piece of clothing, a sweatshirt, revealing my fairly muscular chest.

"Please take off your pants too."

I glanced at Ms. Chen; she looked at me resolutely, so I had no choice but to take off my athletic shorts as well.

"And these briefs, take them off too," Ms. Chen continued.

Wouldn't I be completely naked? Standing naked on the stage in front of so many female students—

was this what Ms. Chen meant by "human body demonstration"?

Embarrassed, I took off my only piece of clothing, my underwear, and covered my private parts with my hands. All

thirty- odd pairs of eyes were fixed on me. This was the first time in my life I'd been completely naked in front of women,

especially thirty-odd women.

"To provide a comparative teaching method with the male body, I'd like to invite another female student to come up and demonstrate the female

form . Who would like to come up?" Ms. Chen looked around, but not a single girl responded.

"Since no student is willing to come up, I'd like to invite Ms. Li to the stage to give us a demonstration of female nudity.

Would Ms. Li be willing?"

As I stared at Teacher Chen in surprise, my mother stood up from her seat. She

walked the front of the class and asked, "Teacher Chen, should I also take my clothes off?"

Teacher Chen nodded and said, "Yes, Ms. Li, do you agree?"

My mother hesitated for a moment, and I thought she definitely wouldn't agree. Unexpectedly, she looked at Teacher Chen and said,

"Okay, for the sake of the students' learning, I'm willing to give a demonstration of female nudity."

After saying that, my mother took off her skirt. Underneath, she was wearing a set of blue floral lace lingerie. The lingerie

was designed to be very sexy; except for a small piece of fabric embroidered with a few flowers in the front, the rest was almost

entirely transparent.

My mother seemed to have made up her mind. Without any hesitation, she took off her lingerie and stood confidently

beside me. It was the first time I had ever seen my mother naked, and I never imagined she had maintained such a good figure! Her

breasts were large and firm, her abdomen smooth and tight, her legs long and slender, and her buttocks slightly upturned, thanks to the five-centimeter heels she was wearing.

Her high, bright orange heels made her appear exceptionally tall and beautiful.

"Class, now you have a male entity and a female entity standing before you. I'd like to ask one of

you to tell me the differences between them," Teacher Chen said, lightly tapping my hand covering my lower body with her pointer.

I awkwardly placed my hands behind my back, my penis limp and drooping due to nervousness, looking somewhat comical.

Several students raised their hands.

"Hu Yumei, please tell us," Teacher Chen

said .

"Men have prominent Adam's apples while women don't; women have full breasts while men don't,"

Hu said.

"Anything else?" Teacher Chen asked.

"This..." Hu's face suddenly flushed red; she shook her head and sat down.

"Wang Yingying, what other differences do you think exist between male and female entities?" Teacher Chen then asked, pointing to

another girl.

The student who stood up this time was the same bold

girl who had stood outside Teacher Chen's office earlier after class. She was of medium height, with a pair of bright, large eyes, and looked quite pretty.

"The biggest difference between men and women is their genitals," Wang said in a clear voice.

"Men have a protruding penis, while women have a vaginal

opening . Also, men have a scrotum, while women don't."

Teacher Chen said approvingly, "Wang's analysis is very correct. That's right, the male external

genitalia consist of a penis and a scrotum." Teacher Chen pointed to the corresponding part of my lower body with the pointer and explained:

"As for women, their external genitalia are more concealed. Li's mother, could you please sit on the podium

and show the students your external genitalia?"

"Sure," my mother readily agreed. She sat on the podium, her high-heeled

feet resting on the edge of the podium, her legs spread in an M shape, completely displaying the most private part of a woman

to the whole class.

"Students, please look. The female external genitalia consist of the mons pubis, labia majora and minora, and vagina. Here, I want

to remind you that there are three distinct

orifices of flesh in the female lower body," Teacher Chen explained, walking over to the mother. "Look, the smaller orifice at the top

is called the urethra, the passage for urination. Some couples lack necessary sexual knowledge and often mistake the urethra

for the vagina, which can easily cause harm to the woman. Below that is a larger orifice, the vagina, which

is used for sexual intercourse and also the birth canal. The smaller, tightly closed orifice at the bottom is called

the anus, generally used for defecation."

"Teacher Chen, what do you mean by 'generally'? Doesn't the anus only serve for defecation?" a

student asked.

"That's right. Some sexual acts involve using the anus for intercourse, which is a very lewd and

obscene ," Teacher Chen explained.

"So, how do men engage in sexual intercourse with women?" This time, the mischievous student, Wang, asked the question

.

"Although this isn't the topic of today's lesson, it's

crucial . So, would you please have Ms. Li demonstrate sexual intercourse?" Ms. Chen's

decision was met with unanimous applause from the class.

"Ms. Li, do you have any questions?"

"No," Ms. Li shook her head, "but how should I demonstrate?"

Ms. Chen walked over to Ms. Li and said, "It's actually quite simple. For example, the pointer in my hand

represents a male penis. You see, inserting the penis into the vagina like this is sexual intercourse." As Ms. Chen explained,

she carefully and gently inserted the pointer into Ms. Li's vagina.

"Ms. Chen, your pointer is so hard, of course it can go in, but Li's penis

is limp, how can it go in?" It was Wang who spoke again.

"Good, Wang's observation is quite meticulous. Therefore, to ensure a

full , foreplay is necessary, such as kissing, caressing, and oral sex."

Teacher Chen walked to my side, reached out and grasped my penis, gently stroking it a few times, and then said,

"Look, isn't Li's penis a bit bigger than before?"

I never expected that the school's most beautiful teacher would actually help me masturbate, and stimulated by this, my

penis naturally reacted.

"Now, please come up and touch Li's penis, and experience firsthand how to help a male

penis a full erection."

I could hardly believe that Teacher Chen was going to have all the girls come up and touch my penis. I looked at my mother somewhat

bewildered , while she remained sitting naked on the platform, smiling at me without saying a word.

"Please line up and come up one by one in an orderly fashion. When you touch it, please don't use too much force,

as a male penis can sometimes be quite fragile," Teacher Chen instructed.

So all thirty-odd girls in the class lined up in front of me. The first girl to come up was

Hu , who shyly touched my penis before quickly pulling her hand away, causing the girls behind her to burst

into laughter.

The next few girls were much bolder; they imitated Teacher Chen, gently stroking

my penis, and one even touched my scrotum.

Then came the boldest, Wang. She first used her gloved hand to stroke my penis a few times, then

touched my scrotum. Just when I thought it was over, she squatted down and sucked on my penis

a few times.

I stared at her in shock, then at Teacher Chen. The teacher didn't say a word of reproach; it seemed

she didn't object to Wang's bold actions.

I thought helplessly: How could my virginity be ruined by a girl's mouth?

How tragic!

The girls who followed were either timid and turned away after just a touch, or bolder ones who followed Wang

's example and sucked on my penis. With the constant stimulation from so many girls, my

penis quickly became very hard, with the glans sticking up high and almost touching my stomach.

"Alright, students, look, Li's penis is fully erect from the foreplay just now. That

's the purpose of foreplay. Actually, besides touching and oral sex, kissing is also very important for foreplay in male-female intercourse.

Now, let me demonstrate kissing."

Teacher Chen walked up to me and said, "Li, have you ever kissed before?"

I shook my head to indicate no.

"Then let me guide you! Please open your mouth," Teacher Chen brought her mouth

close to mine, and then she put her tongue into my mouth.

To be honest, this was my first time kissing. I was pleasantly surprised to find that kissing was such a fun

thing . I sucked on the teacher's tongue and then put my tongue into Teacher Chen's mouth.

Teacher Chen and I kissed for about three minutes, and then she said, "Now, can Li's

penis be inserted into the vagina?"

"Teacher Chen, could Li demonstrate insertion?" Needless to say, it was the mischievous

Wang who spoke. "Although this kind of demonstration may inevitably have a pornographic element, it is very important and necessary

for you teenagers to have correct sex education . How about this, would Li's mother agree to give Li a sex demonstration, so that the students can have a chance to witness it firsthand and learn how to have sex with the opposite sex?" 　　Did Teacher Chen really want my mother and me to do this kind of sex demonstration with incestuous implications in front of more than thirty female students ? I was so shocked that my mouth dropped open and I couldn't close it for a moment. 　　But what shocked me even more was my mother's attitude. She nodded without hesitation and said, "As long as it can help these students, I don't mind doing this kind of demonstration." 　　"Since Li's mother agrees to do the sex demonstration, then Li, please come over here for a moment," Teacher Chen gestured for me to walk to the front of the podium. "Classmates, in order to observe more clearly, you can come to the side of the podium , but please do not disturb Li and his mother's sex." 　　So all thirty-odd female students in the class gathered around. I was both excited and nervous. Was I really going to have sex with my mother in front of so many girls? I gripped the base of my penis with my right hand, the head pointing towards my mother's vaginal opening, but I hesitated to insert it. 　　Teacher Chen gently pushed me from behind, and I thrust forward, the head of my penis hitting my mother 's clitoris. My mother let out a soft "Oh," and slightly adjusted her position, allowing my penis to enter her vagina. 　　"Wow! It went in!" 　　several female classmates exclaimed. 　　"That's right," Teacher Chen explained, "This is sexual intercourse. Li's penis has successfully entered Li's mother's vagina. Of course, this kind of insertion requires the woman's vagina to be fully lubricated; otherwise, the woman's vagina may feel uncomfortable due to injury." " 　　So how can it be fully lubricated?" one girl asked. 　　"Men can lubricate a woman's vagina by caressing her, or even by performing oral sex. Li, try performing oral sex on your mother!" 　　I looked at my mother; she nodded at me with a flushed face. So I pulled out my penis, squatted and licked my mother's vaginal opening a few times with my tongue. 　　Teacher Chen smiled and said, "It seems Li hasn't mastered oral sex yet. You can first lick back and forth on your mother's labia majora and minora, then tease her clitoris with the tip of your tongue. The clitoris is the most sensitive female genital organ ." 　　I did as Teacher Chen taught me, and my mother indeed cried out excitedly. 　　"Teacher Chen, what does Li's mother's 'ah' sound mean?" Wang asked again. 　　"It means Li's mother is sexually aroused, usually it's a moan. Look, there's already some vaginal fluid coming out of Li's mother 's vagina, right?" 　　"Really! There's a lot of vaginal fluid coming out of Li's mother's!" 　　"Teacher Chen, Li's mother's vaginal opening seems to be wriggling!" 　　"You students are very observant! This wriggling means that Li's mother wants the penis to be inserted. Li , try inserting your tongue." 　　So I put my tongue into my mother's vagina and thrust it in and out. My mother soon let out another moan of "ah ah." 　　"What do you feel?" Teacher Chen asked me. 　　"Teacher Chen, Mom's vagina seems wet and slippery inside, and there seems to be water seeping out from the vaginal walls!" 　　"That's right," Teacher Chen said, "This fully demonstrates that your mother urgently needs your penis to penetrate her and have sex with her. Li, now insert your penis into Mom's vagina and thrust back and forth." 　　I started having sex with my mother as Teacher Chen instructed. 　　"Teacher Chen, Li's penis doesn't seem to be fully inserted yet!" This time, someone asked such an explosive question. 　　"Very good question!" Teacher Chen explained, "Li's penis is probably nine inches long, while Li's mother 's vagina is probably no more than seven inches deep, so Li's penis can only go in this far. Any further and it will penetrate into his mother's uterus." 　　"Isn't that okay?" the same girl from before asked. 　　"It's not that it's impossible, but today's sex demonstration doesn't require penetration into the uterus. Li's mother, could you let your son have sex with you in the uterus?" 　　"Yes, you can!" Mom nodded. 　　"Li, try inserting it again!" Teacher Chen said. 　　I slowly inserted my penis again, the head of my penis quickly hitting a soft spot. Mom let out a , her lower body trembling slightly. I knew the head of my penis had reached Mom's cervix. 　　I looked at Mom, unsure whether to go deeper. Mom smiled slightly at me, her face flushed, and said, "Don't move, let me do it!" 　　So Mom slightly lifted her lower body, and I felt the head of my penis push through that soft flesh, entering Mom's uterus. 　　"Wow! It's all the way in!" 　　"Mom's vagina is really amazing! I wonder if I could do that!" 　　Several girls chattered excitedly.

"Alright, Li and his mother have successfully demonstrated penetration into the uterus.

It was a very successful demonstration. Do any of you have any questions?" Teacher Chen continued.

"Teacher Chen," Wang stepped forward again, "didn't you say that the anus can also be used for intercourse?

Could Li and his mother demonstrate for us as well?"

"This class is almost over," Teacher Chen said. "Li's mother, could you demonstrate anal intercourse

again ?"

The mother nodded and said, "I'd be happy to do anything that helps you all learn."

"Alright, Li, you can pull your penis out now. That's all for this class. You can discuss any

questions next time."

I reluctantly pulled out my penis. Just then, due to the prolonged erection and various physical and mental

stimulation , I couldn't hold back any longer and ejaculated! A stream of milky white, viscous semen shot out from the urethral opening of my glans.

The moment my glans left the mother's vaginal opening, most of my semen shot onto her vaginal opening, and

some onto her belly.

Ms. Chen was also stunned by the unexpected ejaculation. She hadn't expected me to ejaculate so suddenly. The students stared

at me blankly, as if I were a monster. My mother, her face flushed, looked at me without saying a word.

"Ms. Chen, is this ejaculation?" a female student asked softly.

"Yes, this is ejaculation," Ms. Chen seemed still somewhat dazed. She dabbed

some and said, "This little bit of semen can conceive many children. Students, if you want to

enjoy the pleasure of sex without harming yourselves, you must take effective contraceptive measures.

In the next class, I will teach you how to use condoms."

I stood awkwardly in front of the podium until someone handed me a pack of tissues, and I finally came to my senses.

"Thank you!" I said.

It was that mischievous student, Wang! She looked at me sympathetically and said, "This isn't your fault. Unless

you're not a normal man, who can guarantee they won't ejaculate?"

I thanked her again and then began wiping the semen from my mother's vaginal opening, and then from her belly

. My mother obediently let me wipe her until she was completely clean. Only then did she close her legs and get off the platform to put her underwear and skirt

back on .

This extremely lewd sex demonstration ended just like that. I was surprised to find that my mother was

so beautiful and sexy, and at the same time, I was grateful to have sex with her. I even started to look forward

to the next sex demonstration.

Yes, I looked forward to having sex with my mother again!

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[My Mother and I Demonstrate Sexual Intercourse] (Part 1) Chapter 1

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