I’m having demonstrative sex with my mom.


My mother’s name was Wong Mei Lin, she was 38 years old, 5’2″ tall, with a 36C, 25, 34 circumference, and I was 17 years old, 6′ tall, 120 lbs, and one of the top type of men in the school, so it wasn’t surprising at all that the teacher approached me, and I was happy to help Mr. Chan.

I got to the little room next to the classroom early that morning and my mom came with me.

“You’re early, Li; did you bring your student ID?”

“Bring it on.”

After handing Ms. Chen and her student ID card, she took a set of patient clothes from a drawer and gave them to me, “Turn left at the entrance and there is a locker room on the right, take off your shirt and pants and change into these hospital clothes.”

Looking at ‘that’ dress in her hand, it was at best a piece of cloth with two sleeves sewn on.

Taking off his outer pants, he hesitated to take off his underwear as well; two years in the military had really thinned his skin, and deciding to keep his underwear on, he put on his patient’s gown and returned to the office.

“Lee did you take off your panties too.”

“Ah, no yeah.”

“Take it off then.”

“Wow.”

The first time in front of Ms. Chen’s face to take off the underwear and did not do anything, take off can not help but pull the hem of the shirt, as if worrying about spring light leakage was in front of the Chen teacher to see; Chen teacher slightly lowered his head oblique intrigue for a moment my lower body, eyes back to the desktop to continue typing, I was as if sitting on pins and needles, wriggling constantly pulling the hem of the shirt; finally, Chen teacher stood up, nodded and signaled me to follow her, and led me into an empty room, and I was able to get out of the room. empty room.

“Mr. Lee, please wait here for a moment.”

“Uh, yeah.”

Then she opened the door and walked into the adjoining classroom, where there seemed to be a lot of whispering coming from the room, so small that it could only be faintly heard.

“Ladies and gentlemen, the school is trying to get you into the situation as early as possible, so we’re having a special vivisection with the help of the same school as the senior class.”

Senior class, that’s me, isn’t it? Vivisection? The mind is filled with infinite wonder.

“Vivisection is not only about explaining the organs of the human body, but also about understanding the human body through touch, sight, smell and even hearing.”

Somehow, at this point, the heart vaguely felt bad.

“Then, let’s store up an attitude of open-mindedness and learning to welcome Lee from the senior class.”

At this time Mr. Chen opened the door again “Li, it’s ready, please come to the front of the classroom podium.”

It turned out that she had just gone into a classroom, and when she entered the classroom, she saw about thirty male students in the seats (since I went to an all-boys school), and they all stretched their necks out to look at me, and there seemed to be a twinkle in their eyes.

“Yes, let’s all treat Lee as a living body for now, the lesson will go more smoothly later.”

Mr. Chen then turned his head to look at me “Lee, please take off your patient uniform.”

Uh, taking off this patient’s uniform, wouldn’t that make them naked in front of these thirty-odd males? The male students began to murmur when they heard the lecturer on the stage say so.

“Students, if you have a question, please raise your hand and ask, it’s rude to me, and to this living, uh, I mean Lee on stage, to whisper like that.”

After saying that, he continued to look at me, as if waiting for my next step; stiffly took off the piece of cloth with the sleeve sewn on it, and after Mr. Chen took it, the students’ eyes focused on me who was naked in front of the podium.

“Yes, you are presented with a male body, and you can clearly see that the biggest difference between a male body and your own is that there are fewer breasts on the chest, replaced by thicker muscles, and what about the lower body.”

The lecturer signaled me to raise my hands covering my pubic area “We can see that the male lower body is constructed with the penis as well as the scrotum.”

It was the first time I had ever been naked in front of a male, and surprisingly in front of over thirty males at once.

“Actually, you will have many opportunities to see the male body after you graduate, whether it’s a male patient or your boyfriends, but that’s not like today, where you can be introduced to all the parts of the male body, okay, do you have any questions.”

“Teacher….”

One student raised his hand “Uh, Wang please.”

“I’d like to ask how this man and woman have sex.”

“Great question, and even though it’s not part of today’s lesson on male anatomy, I’ll explain it to you just a little bit, the male sex organ, or penis, inserted into a male’s vagina is sex.”

“But how can this flaccid penis be inserted into a vagina.”

The speaker was again Mr. Wang, who had just raised his hand, and his slightly cunning eyes were now looking at me.

“Yes, today is a bit nervous because it’s Lee’s first time demonstrating a live body, a normal male will get an erection due to engorgement of blood when stimulated, and when it’s erect it can be inserted into the male body.”

“Teacher, could you please ask the living body, I mean ask student Li to demonstrate an erection.” The one who spoke was still student Wang.

“At this point I don’t think it would be possible to get Lee to have a natural erection, so I’ll just give him some stimulation, and all of you need to face today’s vivisection lesson judiciously, so don’t think of it as an erotic demonstration.”

With that, the lecturer turned back to face me and after nodding to me, touched my cock with her hand.

“Students, you may move a little closer to observe the changes in the living penis today.”

At this moment, the lecturer held my penis in her hands, and the students under the stage were all close to me, as if they were looking at a very interesting little animal, while my penis was originally shrinking because of nervousness, I never thought that under the crowd of more than thirty small males and the touch of the beautiful female lecturer, it would gradually react and gradually become erect.

“Wow, it’s really hard.”

Just as the female lecturer stroked it, the penis went from tight to erect.

“Class, this is the male penis in the arousal phase.”

“Sensei, can we touch it.”

The one who asked the question was Wang again, “Okay, today I hope that all students can thoroughly understand the structure of the male body through different sensations, now according to the order of the seats, remember to move gently when touching, the male penis is sometimes very fragile.”

The males lined up very neatly in front of me and waited to touch my penis, so this is what teaching modeling is all about.

At this point the teacher opened the hand that had just been holding my penis “Then all of you will begin to take turns stroking the, male penis as well as the scrotum.”

The first student slowly stretched out his right hand, touched his penis with his fingers and then retracted it, causing the other students at the back of the line to laugh. The second student, Wang, who had a lot of questions just now, didn’t hesitate to stretch out her hand and hold my penis, and slightly moved it back and forth a couple of times, which was like the action of my jerking off, except that it wasn’t my hand, but the hand of a very young and well-built young girl. This action was like my jerking off action, except that it was not my hand, but the hand of a young girl who was very young and had a good appearance.

“Teacher, you just said that you can experience the male body by touch and smell, can I smell the male penis.”

“Uh, okay, but remember to be careful.”

Wang raised his head and looked at me with cunning eyes for a moment before he then lowered his head down to sniff my cock.

“Teacher, the male body doesn’t have much flavor yeah, I wonder how it tastes.”

Not waiting for the lecturer to answer, Wang students actually will be mouth to hold my penis, containing two then slipped off the stage, followed by students, some are shy to touch a little, some will also be like Wang students hold the whole penis slightly sleeve, more bold will also look down to smell, but no longer like Wang students dare to open their mouths to contain my penis.

Finally, the class of three dozen men took turns to play with my penis, at this time the penis because of great stimulation, erection to the extreme, the glans front even slightly secretion of prostate, wet.

“Sensei, so just now you said male to male sex, can you demonstrate.”

The questioner is still just Wang students “This as for men and women’s lovemaking, the classroom teacher will not be able to demonstrate in real life, assuming that this is a woman’s vagina.”

Said the lecturer circling his left hand “This is how the male penis is inserted.”

The lecturer brought his circled left hand close to my penis and began to move it back and forth “But usually sex is male-initiated, with a back-and-forth pistoning motion after penetrating the male’s vagina.”

“Then can the teacher ask Lee to demonstrate by pretending to make love to the teacher, I mean make love to the teacher’s hand, and show us.”

The female lecturer looked at me for a moment, nodded to indicate that I demonstrated, God, this female lecturer does not know that in addition to a few times I have jerked off, in fact, is a big virgin; no way out, according to the head of the plot of the A movie, to the female lecturer’s hand to make love to; alas, I did not expect the first time of the virginity of my first time, but was such a lack of love, in the more than 30 male students in front of the public with a seemingly Chen teacher lecturer’s left hand to make love to.

“Class, this is making love, except real sex is not with a male hand, but a vagina, any other questions.”

“Teacher, how does that male ejaculate.”

Finally, it was no longer Wang who asked the question, but it was a much more powerful question.

“Well, when the male’s penis is pistoning in the male’s vagina, ah, after some time of moving back and forth, eventually the male will have an orgasm, which is ejaculation.”

“So can you demonstrate it to us.”

“It’s hard to demonstrate the difference between this lovemaking and the circles with the teacher’s hand microcity.”

“Then we can ask the students who volunteered to come up and demonstrate.”

Wang students once again difficult “This demonstration although may cause you students have erotic reverie, regardless of this erotic and teaching is originally between a line, so well, any students are willing to go up to the stage demonstration.”

The stage was suddenly silent as you looked at me and I looked at you.

Chen teacher did not want to come to the real, no one dares to try “then, I will ask Li students’ mother to help, just ask Mrs. Li you come on the stage to demonstrate with us making love. All students should clap and encourage, Mrs. Lee was not originally here to do the demonstration.”

Next, my mom, Lee’s mom came on stage, mom was nervous and a little shy, not at all thinking about demonstrating intercourse with her own son.

“Mom Lee, then please take off your clothes bit the other students to demonstrate.”

Mom didn’t squirm, she took off her coat and long skirt, revealing a full set of pure white bra and panties, then I saw her take off her bra and panties, her C-cup breasts jumped out, her nipples were light brown, her lower body pubic hairs were sparse and crispy but neatly growing on her pubic mound; all that was left of her whole body were the 3-inch high heeled sandals on her feet, and I had never seen my own mom’s body, which was very sexy.

“Fellow students, although Ms. Lee’s mother, but the body is still very young, and childbearing, it is a mature mother’s body, the demonstration before a slight explanation of the various parts of the female body.”

The lecturer asked my mom to sit on the podium, step her feet on the edge in her high-heeled sandals, and bend her legs into an M-shape, at which point the entirety of her labia was exposed to the rest of the class.

“Guys, this is the labia majora, and this is the labia minora, the clitoris, and inside the labia minora there’s a smaller hole, this is the little hole I’m inserting the ballpoint pen into right now, and this is the urethra, and a lot of first time men and women tend to go into the urethra by mistake, which causes extreme discomfort for women.”

Mom displayed her pussy, blushed and looked back at me for a moment, then turned her head away.

“Then look at the urethral opening under a larger hole, here is the vagina, the vaginal surface has a layer of film is commonly known as the hymen, ah, Li mom your virginity mold has broken it. The small and tightly closed hole below is the anus, which is generally only used for defecation.”

“Teacher, what do you mean by general? Isn’t the anus only for defecation?” A boy in the back said.

“Yes, because some abnormal intercourse uses the anus, it’s called anal sex! It’s only done by very kinky people, it’s perverted shit.”

One of the boys added “Can you demonstrate? Can you really insert your penis?”

“This is abnormal sexual behavior, only lowly women do it.” The teacher turned to her mom and asked “Mom Lee, would you like to demonstrate sexual intercourse with your mom now and then do a teaching demonstration of anal sex next week?”

“Yes, as long as it’s something that will help these students and my son is willing to cooperate, I have no objections.” Mom agreed without thinking.

“Mr. Li, are you willing?” Ms. Chen asked me with a bit of a sexy tone.

“It’s okay Ms. Chen, I’m willing.” I certainly couldn’t resist Ms. Chen’s request.

“Well, since the parties involved are fine with it, then please ask Lee to come over.”

I walked up to the podium, a little overwhelmed and mortared, but my eyes were drawn to my mom’s pussy, the light brown labia with a bit of dampness was extremely pretty, and my erect cock couldn’t help but nod its head.

The lecturer pushed me closer to my mom and placed my glans against her pussy “You can all come closer, and find your own position where you can see clearly as long as you don’t disturb the two on stage.”

The students gathered around the podium as if watching a show, and after everything was in place, the lecturer grabbed my penis in her hand and was ready to demonstrate this classroom aphrodisiac show “Teacher, this is how you make love, the male directly inserts it.”

Classmates asked “Generally speaking, there is foreplay before sex, foreplay has caressing, oral sex, etc., oral sex has just been demonstrated for students.”

Mr. Chen said “Then demonstrate caressing a woman.”

The lecturer held hold my penis, back and forth slightly set, although in front of more than thirty men some uncomfortable, but really very comfortable, not ban me closed my eyes to enjoy, at this time feel the lecturer hand slightly force pinched my penis a bit, I just hurried to open my eyes again.

“Then proceed to demonstrate male to female caressing as well as oral sex.”

The lecturer signaled me to look down, so I went down to face my mom’s pussy “A male who uses his tongue to lick a woman’s clitoris and labia is called oral sex.”

The lecturer nodded, so I licked my mom’s pussy lips, at which point her whole body shook as if she had been electrocuted.

“Due to time constraints, we have a slight demonstration of oral instruction, and then you will see how a male makes love to a female.”

The lecturer nodded to me again, I raised my erect penis and slowly approached my mom’s already damp vagina, slowly slowly inserting it until the whole thing was out of my vagina, at which point the female lecturer signaled me to pause “Yes, the action that was just demonstrated is making love, do you all have any questions.”

“Ms. Chen, Lee’s penis is not fully inserted, is this okay?”

“Yes, that’s because the penis only goes in as far as the end of the vagina, and Lee’s penis is 11 inches long, and any further entry would be into his own mom’s uterus.”

“So no?” Another student asked.

“You can, but it’s just a demonstration, you don’t have to penetrate as far as you can.” Mr. Chen explained, “How about this, Lee, you just insert it more until it penetrates the uterus, is that okay?”

“Let me help!” Mom volunteered, after which she slowly moved her body and slowly swallowed my penis into her vagina, and I also felt it traversing the mouth of my uterus “Ah~~!” Mom let out a moan.

“It seems to have entered the womb.” Chen You Shi began to academic explanation, I did not listen to it at all, my whole body only feel the penis pumping uterus brought about by the pleasure, I can not help it, pumping their own mother.

“Teacher, then what was Mrs. ‘ah~~!’ What’s that scream?” A male student said, and made a point of imitating his mom’s moans.

“Oh! That’s a grunt, when sexual pleasure is gotten during intercourse, a delightful joyful sound is made, but the one just now is really a bit cheap, it can be called a ‘lewd grunt!'” The teacher was nonchalant and explained in a serious manner.

“Teacher, can I watch the whole set of sex. And what’s anal sex?”

“Okay, since this class is about to end, let’s have Lee and Mom Lee come back to the next closing class to demonstrate other sexual behaviors for us.”

After saying that the lecturer signaled to me, so I withdrew my penis that was inserted into my mom’s vagina, and to my surprise, after these nearly fifty minutes of stimulation, just at the same time I withdrew my penis, that’s right, I ejaculated, and right in the middle of the other classmates’ shocked voices, I ejaculated the sperm of this unfinished lovemaking, and a head of all of them were ejaculated on my mom’s belly.

Maybe it was unexpected, Mr. Chen suddenly didn’t say anything, looking at the cum I shot on Wang’s belly for a long, long time, until the next student asked… “Teacher, is this ejaculation.”

“Uh, yes, although today’s lovemaking demonstration wasn’t completed for the full set, probably Lee was affected by the stimulation from all of you and thus ejaculated at the same time as he withdrew his penis, which is semen all right.”

The lecturer used his fingers to pluck up the semen, “Ladies and gentlemen, if these drops of semen were ejaculated in a woman’s vagina, it could make her pregnant, so before you decide to have a baby, you must wear a condom when having sex, so that you won’t kill someone while enjoying yourself.”

Mom looked at me, blushing face plus some misty eyes, extremely good-looking, I could not help but reach out to catch her feet, forgetting to caress her, until the lecturer coughed lightly to wake up.

“It’s about time then, so you can all take turns touching the cum, but be careful to wash your hands afterward.”

This ridiculous ‘vivisection’ lesson ended with the class roaring with laughter and the front and back touching my semen.