Chapter 4 Another demonstration class for sex

My mother and I had sex with each other without exception. Although we had many physical contacts, my mother even reached orgasm with an outsider in front of me, but this did not change our mother-son relationship. At home, my mother is still a mother, and I am still her son

I know that mom treats me like this because she loves dad.

My father is a veteran. He was already a regiment-level cadre when he was in the army. After retiring, he was arranged to serve as the deputy director of the Municipal Renai Hospital. Now he is the director of the hospital.

My mother is a nurse in this hospital. She was later promoted to head nurse and is now the director of the nursing department.

My father is loyal and diligent in his work. With his father's management, Renai Hospital has become one of the most famous hospitals in the city. My father has thus gained the support of all the staff of the hospital.

Mom is much younger than dad. Dad always treats mom as a treasure in his palm since dad got sick, maybe he feels guilty, he has been obedient to his mother even more.

I know that if my father agrees with me and my mother, my mother will definitely accept me. I also know that as long as one of my mothers and I tell my father, my father will definitely not object, but how can I say something like this?

I was helpless and only looked forward to the next sex demonstration class

But I met Teacher Chen several times at school, but Teacher Chen didn’t talk about this. I don’t know if she would arrange such a class again?

On this day, I met Teacher Chen again. I called Teacher and was about to leave, but Teacher Chen stopped me.

Classmate Li, can you come to my office?

Good Ah

I said readily, thinking that the teacher is going to arrange another sexual intercourse demonstration class?

Teacher Chen is alone in an office. Next to her class, Teacher Chen poured me a cup of tea.

Li

Teacher Chen asked me, have your relationship with your mother changed recently?

Of course I know what change Mr. Chen refers to. I said: There is no change!

Teacher Chen asked again: Student Li likes his mother, right?

I nodded slightly and said: It's Ah

Classmate Li, do you have the habit of pistol shooting?

Teacher Chen suddenly asked, and after receiving my affirmative answer, she asked again: How many days do you usually call me?

I said: I have to call it almost once a day, sometimes twice a day

Teacher Chen widened his eyes and said in surprise: Oh, Ah! Are you feeling uncomfortable when you ejaculate so frequently?

I said: Maybe I'm used to it

Teacher Chen said: You are not good at pistoling like this, but young people of your age are particularly strong in sexual desire, so it is not okay to not vent. This way, our teacher received a task today, saying that all male students in the class will go to the hospital to donate semen. The specific method is not clear. However, the teacher thinks that anyway, you are a waste of pistoling. It is better to donate to the hospital. Is it a contribution to follow? Will the teacher be there?

I said: I'll listen to the teacher

Teacher Chen smiled and said: The teacher cannot make decisions for you in this kind of thing. When you go home and ask your mother, if she agrees, you can come to the teacher to sign up, okay?

I looked at Teacher Chen and nodded. Teacher Chen looked at me with a smile. Her expression looked very much like a mother. I suddenly had an impulse and wanted to go up and hug her.

Teacher Chen

I shouted excitedly

Is there anything else for Li?

I said: It's nothing, it's just... it's... Teacher Chen smiled, and she said: Why did you suddenly become shy? If you have anything, just say it, the teacher won't blame you.

I calmed down for a moment and said: I suddenly felt that Teacher Chen and my mother seemed to me, would I be a little out of control?

Li’s mother is a great beauty! How can the teacher compete with your mother?

No, Teacher Chen is also beautiful! The boys in the school want to get close to the teacher

Classmate Li, if the teacher plays the role of your mother once, do you want to have sex with the teacher?

I said without thinking: I'm willing

Teacher Chen laughed and said: There are young people who are interested in me, and the teacher is really happy! You can wait here first, and the teacher will come to the classroom.

After saying that, Teacher Chen entered the next classroom from another door in her office. She soon came back and looked at me with a smile on her face and said: Student Li, this class is a self-study class. I just went to ask for the opinions of my classmates and said that I would give them a demonstration class for sex. The students seemed to like this kind of class.

I originally thought that Teacher Chen would ask me to have sex with her in her office, but she didn't expect that she would ask me to cooperate with her to have a sex demonstration class. I was a little surprised, but there was no way. I was always a little uncomfortable with sex in front of so many people in class, and the pleasure was greatly reduced.

Teacher Chen took my hand and walked into the classroom next door. More than 40 students in the class were looking at us expectantly.

Students, today, I happened to have something to come to the office to find me. The teacher thought that this class was a self-study class, so he decided to give the students a demonstration class for sex. The content was the importance of caressing in sexual intercourse. Since today's class was a temporary decision, Li's mother was not invited, so the teacher had to give the demonstration in person.

The whole class gave warm applause

So Teacher Chen and I took off our clothes and stood naked on the podium

Teacher Chen walked up to me, picked up one of my hands and put them on one of her breasts, and said to the whole class: Sexual intercourse starts with caressing, and Classmate Li can caress the teacher's breasts, by the way, that's it

Then Teacher Chen signaled me to hold her in my arms. Her skin was smooth and delicate, and the beauty felt really good.

Teacher Chen brought his mouth over to kiss me, and explained while kissing: Kissing between men and women is an important prelude to sex. You can put your tongue into the other person's mouth and suck each other's tongues.

As he said that, Teacher Chen put his tongue into my mouth and wrapped it with my tongue. I sucked her tongue, and at the same time stroked her delicate body with both hands. After a while, I put my tongue into her mouth again.

While sucking my tongue, Teacher Chen reached out to hold my cock and gently stroked it

Wow! Li’s penis is so erect!

Several female classmates exclaimed

Teacher Chen pulled out his tongue and said with a smile: Yes, this is the effect of caressing, but this is not enough. Further stimulation is needed to make it erect more fully

After saying that, Teacher Chen squatted down, opened his mouth and took my glans and started to give me oral sex.

She sucked my glans for a while, and then started licking my cock with her tongue

She licked it very seriously, almost all her cock was licked.

After licking her cock, she opened her mouth and swallowed my scrotum

Teacher Chen's oral sex skills are even better than my mother's. My cock quickly became extremely erect under her licking.

You see

Teacher Chen showed my cock to all the students. Li's penis is now fully erected. You can come up and touch it to experience the hardness of the male penis after it is fully erected.

So all the female classmates surrounded me, and they touched my cock one by one. The naughty student Wang opened his mouth and held my glans in his mouth. This time she did it as she imitated Teacher Chen.

alright

Teacher Chen continued: The students have already touched it just now. The male penis is very firm after full erection, which is ready for the next step of sexual intercourse, but women must also be fully wet.

Next, Teacher Chen used the clothes we took off to spread on the floor of the classroom. She asked me to lie on it. Then Teacher Chen lies on my body toward my lower body and said: The posture the teacher uses now is called the sixteenth stance. Men and women can caress each other's sexual organs, and classmate Li, you can lick the teacher's vagina now to try

So I stuck out my tongue and licked Teacher Chen's labia and vaginal opening and his vaginal opening. Teacher Chen also opened his mouth and held my cock in his mouth and had a blowjob for me.

All the girls in the class gathered around. Some were observing how Teacher Chen licked my cock, while others were watching how I licked my teacher's vagina.

Wow! Teacher Chen’s private parts are flowing out!

Classmate Li, can you put your tongue into the teacher's vagina?

I tried to put my tongue in. The tip of my tongue scraped the inner wall of the teacher's vagina and some vagina flowed out of Teacher Chen's vagina, making my face and mouth full of vaginal fluid.

At this time, Teacher Chen spitted out my cock and said to the students: The teacher's bottom is already fully wet, and Li's oral sex skills are not bad, but Li, you should also lick the teacher's clitoris. The clitoris is the most sensitive sexual organ for women.

So I started licking Teacher Chen’s clitoris again. This was indeed the most sensitive part of Teacher Chen. Teacher Chen quickly let out AhAh...

Teacher Chen

At this time, Classmate Wang spoke, and you made AhAh cry, what does this mean?

Teacher Chen said: This is what the teacher said about moaning. When a woman feels sexual pleasure, she will make such a cry. The teacher is also a woman. The clitoris is very comfortable being licked by Li, so she can't help but make such a bit of a naughty moan.

So is Teacher Chen looking forward to having sex with Li?

Another student asked

Yes, the teacher is already itchy inside, so let’s demonstrate sex

Teacher Chen got up and sat on my lower body. When she was about to use the vaginal opening to stroke my cock, classmate Wang spoke again.

Teacher Chen, please wait. What would happen if the teacher didn’t have sex with Li at this time?

Teacher Chen's vaginal opening was against my glans and said: Student Wang has a good question. If you stop sexual intercourse now, the teacher will feel uncomfortable for a day. Once a woman's sexual desire is teased, she will be particularly interested.

After saying that, Teacher Chen sat down and his vagina swallowed my entire cock

Teacher Chen's body was moving up and down, and his movements were getting faster and faster. Since she was sitting facing me, I could clearly see my cock coming in and out of her vagina.

AhAh... Teacher Chen couldn't help but let out an extremely lewd moan again. Students, please see, when a woman is moved, the man's penis will thrust in the woman's vagina will make the woman feel particularly comfortable

Then Teacher Chen asked me to lie on her body again, and her legs were wide open and asked me to insert my dick into it and thrust it.

I thrust more than a hundred times in one breath, making her scream without stopping.

The students around were stunned. Maybe they didn't expect Teacher Chen to be so lewd!

I thrust hard for a while again, Teacher Chen AhAh... moaned, the inner wall of the vagina kept twitching, and a stream of vaginal fluid was spraying out. I knew she was at orgasm.

So, I slowed down the thrust speed, and gradually Teacher Chen recovered from the climax. She smiled and said: Students, Li just now made the teacher reach orgasm, but Li has not ejaculated yet, which is not good for Li's health, so Li can continue to thrust until he ejaculated.

Teacher Chen changed her posture. She was on all sides, her snow-white and pink butt raised high at me and said: Student Li can insert it from behind.

I used my hands to separate Teacher Chen's legs, and fucked her cock in as soon as I thrust her dick.

Teacher Chen

A classmate asked, will you reach your second orgasm?

Teacher Chen caters to my thrust and answers: Many women do have a second orgasm, but the teacher has never experienced it in the past.

The female classmate said to me again: Student Li, you have to work hard! Let Teacher Chen reach orgasm again

I smiled a little embarrassedly and said: I'll do my best.

All the female students applauded me, and some even shouted the slogan "Come on, Li"

I controlled my urge to ejaculate, and then fucked the teacher in this dog-fucking posture. I fucked her while lowering her body, kneading her hands on Teacher Chen's breasts.

How does Teacher Chen feel now?

Some classmates asked

Oh, the teacher’s inside is a little itchy again. Student Li is a young man, it’s really good to be able to hold on for so long!

I received encouragement from Teacher Chen, and I started to thrust more and more harder, and Teacher Chen's vagina twitched again.

AhAh... Li is so awesome... The teacher is at orgasm again... AhAhAh... No... The teacher is not...

What does Teacher Chen mean when he said no?

Student Wang asked

Teacher Chen said with a rosy expression: The teacher didn't expect the second orgasm to come so violently, and the teacher's body was about to fall apart... AhAhAh... Classmate Li cums quickly... cum to the teacher... AhAhAh... Teacher Chen's lustful look once again stimulated my nerves. I rubbed Teacher Chen's nipples hard, and quickly fucked the teacher's slutty pussy, screaming and ejaculated in the teacher's vagina.

Wow! Teacher Chen, Li has ejaculated a lot in you!

Teacher Chen squatted down and let the semen flow out of her vagina. She blushed and said: The teacher was a little out of control just now, which made the students laugh. But today's orgasm is the strongest orgasm that the teacher has experienced in his life. Classmate Li, thank you for giving the teacher such a great orgasm experience.

At this time, Student Wang spoke: Teacher Chen, you are happy, but we are very uncomfortable!

It's Ah or Ah, Teacher Chen, my penis is almost swelling, a male classmate answered

Teacher Chen finally recovered from the climax. She said to Classmate Wang in a serious voice: You are still virgins now, can't you break your body easily?

Teacher Chen pondered for a moment and said, "It's better, every girl and a boy are 69 each other, so it might be a little better."

I looked at Teacher Chen in a little surprised. Do the teachers really want to be 69 to each other?

The male classmates may have to work hard today. If you agree, will the teacher agree to have sex with each of you? Teacher Chen looked at the male classmates with provocative eyes and added

Can the male classmates say bad things after listening to it? Of course, they agreed very readily

So the students took off their uniforms and underwear, and the men and women paired up and had oral sex with each other. The class immediately moaned one after another, as if they were looking like a living erotic palace.

A male and female classmates licked each other's genitals with their tongues, licked each other's vagina and penis

These students are only fifteen or sixteen years old. The female students' vaginas are all pink and tender. Some have sparse pubic hair on the mons pubic pubicum, while others simply don't have a single pubic hair. The only thing that is swelling is completely a white tiger.

At this time, classmate Wang's petite and cute body attracted my attention. She was having a blowjob on a male classmate in a 69 position, and I can guess this male classmate without even saying it. It is our class leader Wenxiong

I saw that Wang's cheeks were flushed, and she wrapped Wenxiong's penis with her little mouth, tightened her cheeks and swung her head, allowing Wenxiong's penis to go in and out of her.

She slowly swallowed and spitted up and down, and her tongue came back to the glans of Wenxiong and turned and licked. Her fair face turned red and white to try to swallow the entire penis. However, Wenxiong's penis was too big, and her little mouth could not completely swallow it. She had to slowly use her cherry mouth to stroke the penis up and down. Two small dimples were exposed on her cheeks due to the up and down sucking.

Her two big white legs were spread apart at Wenxiong's arms, and her waist was lying down.

The wet vagina like a steamed bun in the middle of the butt was exposed to Wen Xiong's eyes at once.

Wenxiong licked and sucked the pink flesh slit with his tongue.

Student Wang held Wen Xiong's cock in his mouth, and a slutty moan came from his throat.

Suddenly, Wang's mouth accelerated the speed of sucking Wenxiong's cock

After more than ten seconds, her snow-white and plump buttocks suddenly trembled, and streams of water spurted out from her pussy. Wenxiong didn't have time to dodge, and her face was sprayed with lewd water.

She was played with by Fumi-ho and climaxed

I secretly compared Classmate Wang's vagina with my mother's and Teacher Chen's. If it was a simple oral sex, the vaginas of these girls might have a better taste, but if it was a partner of sex, it would be more enjoyable for mothers and mature women like Teacher Chen to have sex with them.

I don't know if Wenxiong thinks that too

As time goes by, all the students except Wenxiong leaked out, and Wang is still trying hard to suck Wenxiong's cock.

The bell rang afterwards

Teacher Chen asked Student Wang to stop first and said that those who want to go home can go home, and those who are willing to stay will be used as a tutoring lesson.

There is a rule in our health school that when each student cannot complete the normal credits, he can add credits to make up for tutoring and up to five points.

Therefore, after Teacher Chen announced, all the students stayed, and none of them were willing to go home.

At this time, Teacher Chen smiled and said: Are all the students satisfied? Is the oral sex feel great?

Nice, the oral sex feels great

Student Wang said, But sex may be even better! Do you think so? Teacher Chen reached orgasm twice by Li, which is enough to prove

Teacher Chen's face darkened and said: What does Student Wang mean by saying this?

Student Wang stretched out his tongue and said: Teacher Chen, I don’t mean to collide with the teacher, but I also want to have a one-time sex demonstration. I wonder if it’s OK?

Teacher Chen said: No, you are still a virgin, how can you break your body like this?

Teacher Chen, I am no longer a virgin, isn’t it okay to do this?

Teacher Chen said: Even if you are no longer a virgin, you must obtain the consent of your parents.

I thought to myself: I'm afraid no parents would agree to this kind of thing?

Teacher Chen is clearly making things difficult for classmate Wang!

To be honest, although Wang is not the most beautiful among all the female students, she is also first-class. Moreover, her cute and naughty personality is exactly what I like. It is really good to be able to fuck a beautiful girl like her.

Seeing that Teacher Chen's tone became more and more severe, she amplified her voice without being outdone and said: My parents have divorced a long time ago, and they don't care about me. I have the final say on my own. Does Teacher Chen like to enjoy the pleasure of sexual intercourse? So I don't let me demonstrate sexual intercourse?

I looked at Teacher Chen with a little worried, thinking that the teacher was about to get angry. Teacher Chen really looked a little angry. Her face turned red and white, as if she wanted to eat classmate Wang in one bite.

But the teacher is the teacher. She quickly calmed down her anger and said calmly: Since Wang wants to have sex with Li, the teacher does not object, but you have to ask the teacher to check whether your hymen is really broken.

Student Wang said: Just check it, can I still lie to you?

So Wang sat on a chair with his legs apart. Teacher Chen squatted in front of her, spreading her labia and nipped her labia and looked carefully.

Yes, Wang's hymen is indeed broken. Well, if Li is willing, you can have a one-time sex demonstration, but you must wear condoms and have sex

Of course I won't object. Although I have ejaculated once in Teacher Chen's vagina just now, I will still not refuse if I have a beautiful girl like Mr. Wang who let me fuck me.

At the suggestion of Teacher Chen, I lay down on the floor. Teacher Chen put on a condom for me with his own hands, and then told Student Wang that it was OK

Classmate Wang rode on me openly and quickly put my cock into her pussy.

Classmate Wang's vagina is much tighter than Teacher Chen and my mother's. Fortunately, Wenxiong just helped her with orgasm. Her vagina was already muddy, and it was obvious that it was not the first time she had sex. So after the end of my cock was inserted, although it felt a little tight, she didn't feel any discomfort.

When I had sex with classmate Wang, the other students were all watching around us

Several female classmates were asking how it felt to have sex with boys

Student Wang was shaking his body up and down while talking and laughing with her classmates.

It was about ten minutes later, and Wang started to feel a little overwhelmed.

Li

Teacher Chen said from the side: Now you come to classmate Wang, it seems that classmate Wang is about to reach orgasm.

I turned over and pressed classmate Wang under my body, and my cock was thrusting hard. Soon, classmate Wang started to scream. Her whole body was trembling, and the climax seemed to be extremely strong. She kept screaming, but later it turned into a crying sound

I've never encountered such a situation before, so I stopped and looked at Teacher Chen a little at a loss

Teacher Chen said it's okay, please continue to fuck her, she's so happy

I fucked for a few more minutes, and classmate Wang said he didn't want it anymore. I couldn't stand it anymore. Teacher Chen asked me to get off her.

Classmate Li, do you still want to ejaculate?

Teacher Chen asked me

I said: So what if you want to ejaculate? Student Wang has already done this

Teacher Chen smiled and said to me: Student Wang is naturally not good. If Student Li wants to ejaculate, the teacher will let you do it again.

I was a little surprised and said: Teacher Chen has reached two orgasms just now. Can I do it again?

Teacher Chen laughed and said: This is the difference between young women and girls! Student Wang is still young and has not yet developed, so he can't bear too much stimulation, but the teacher is different. After the rest just now, the teacher has recovered. If you don't believe it, you can insert it and try it.

Teacher Chen had no clothes at all, so he lay on the ground and spread his legs to wait for me to fuck her

I leaned down and was about to fuck me, but the teacher stopped me

Classmate Li, you take off the condom, the teacher doesn’t like to wear condoms and have sex!

Only then did I realize that I was too anxious, so I took off my condom, thrust my dick and fucked it in.

It’s different for mature women. You don’t have to be merciful and do whatever you want. Moreover, Teacher Chen’s age is similar to my mother’s. Fucking her makes her feel like she fucks her own mother, which feels very exciting.

At this time, Wenxiong walked to the teacher with his big cock and said to the teacher with a sorry face. Teacher, the other students have already ejaculated, but I am

Before he could finish speaking, Teacher Chen looked up at his handfuls and smiled and said, "It's okay, Wenxiong, let the teacher help you suck it out."

After saying that, Teacher Chen helped Wenxiong up his thick cock and put it in his mouth to lick it. From time to time, he used his tongue to lick Wenxiong's coronary groove. Occasionally, he used his tongue to spread his urethra opening and lick Wenxiong's eye.

Wenxiong had never been stimulated like this. After a while, a thick sperm rushed straight into the glans. He couldn't help but hold the teacher's head with both hands and thrust hard into her little mouth. All the semen ejaculated out. His semen filled the teacher's entire mouth. Because there was too much, there was even semen overflowing from the corner of her mouth.

After Wenxiong ejaculated, Teacher Chen's vagina suddenly contracted violently, and a burst of panting sounds came from his mouth with thick semen. A hot stream of water poured from the depths of the uterus to my cock, which stimulated my penis to explode instantly. I thrust dozens of times, and milky white and sticky liquid sprayed out.

The three of us reached orgasm at the same time

After the climax, Teacher Chen lay there weakly, his plump and fair body kept trembling, and white and viscous liquid kept flowing out of the corners of his mouth and pussy.

And Fumixiong was wearing clothes and pants on the side

I lay on Teacher Chen's naked body with unsatisfactory feelings, gently stroked her breasts, thighs and buttocks, and my cock was still inserted into the teacher's vagina and couldn't bear to leave.

It was not until after Wenxiong left that we realized that it was already very late and all the students in the classroom had been exposed. Li, you can come down.

Teacher Chen, if I still want to have sex with the teacher, will the teacher agree?

Didn’t the teacher promise to give you another chance to have sex with the teacher? But unless there is a sex demonstration class in the future, the teacher will not have sex with his students casually.

I said a little disappointedly: Why is Teacher Chen like my mother? Is the teacher not happy with me?

Teacher Chen gently kissed my lips and said: Silly child, Teacher Chen is like your mother, and you feel comfortable being fucked by you, but one is your teacher and the other is your mother. What else can you do to us?

Teacher Chen asked me to help her up. When she got up, my semen was still flowing in her vagina, but she didn't care. She didn't even wipe it off. She put on her underwear and skirt, and then helped me put on my clothes.

When I got home, I asked my mother if she could participate in the school’s sperm donation activity. My mother said that sperm donation is also a charity activity. Since it was organized by the school, it is also OK to participate.

So the next day I came to Teacher Chen's office again and said my mother to her.

Teacher Chen asked me to fill out a form and asked me to take it home and let my mother sign it on it.

I took the form and asked in a low voice: Can Teacher Chen do it with me again?

Teacher Chen smiled and said: The teacher promised to do it once for you. However, the teacher reached three climaxes yesterday, and the teacher has not fully recovered yet! After the teacher's health recovers in a few days, let you fuck it to satisfy. Ah?

I heard Teacher Chen say this, so I naturally didn't object, so I took the form and went home.