[My Mother and I Demonstrate Sexual Intercourse] (Part 5) Chapter 18

Chapter 18 Mother's Sperm Donation Tutorial (Part Two)

"I want you to wear stockings during sex, is that okay?"

"Ah! Is that so? Of course." Mother smiled slightly and said to the nurses, "During

your insemination, you must try your best

to meet ."

Mother took off her underwear, leaving her only wearing flesh-colored stockings. Although she was forty

years old, she maintained a very good figure, with round and long legs, a slightly upturned buttock, and a pair of large,

full breasts that, while slightly sagging, were still very large and full, with a deep cleavage that aroused the imagination.

Mother climbed onto the bed, straddling my thighs. She gestured for the four nurses to stand on either side of the bed, then grasped my penis

with her right hand , parted her labia majora and minora with her left hand, and gently wrapped her lower

body around the head of my penis. She lowered herself down, and my entire penis sank deep into Mother's vagina.

"Yingying, go get a test tube."

"Okay."

While Yingying went to get the test tube, Mom remained seated on my penis.

"Here you go, Director Huang."

Mom took the test tube and, sitting on my penis, began lecturing the four nurses: "Look,

the donor's penis is now inside me. Although it seems like a simple sexual act, we must

be careful. As recipients, we must not only seek momentary pleasure but also ensure the

donor . Because we have to deal with five donors each time, if they reach orgasm too quickly, the subsequent

work cannot proceed. Do you understand?"

"Yes, we understand," the four nurses answered in unison.

Mom gently stroked my penis a few times to keep it erect. She continued, "After

the donor ejaculates, remove the condom as soon as possible, collect the semen into this test tube, and then

label it ."

The nurses listened attentively.

"Alright, who wants to go first?" Mom said, getting off me. Her vaginal

fluid clung to my penis, glistening like a layer of ointment.

Seeing everyone silent, Yingying stepped forward and said, "I'll go first!"

She quickly stripped off all her clothes. Just as she was about to climb onto the bed, Mom stopped her. "You

're not married yet. Put on a condom first, just in case."

"Director Huang, no need. I'll just use it a few times, I won't ejaculate."

"No, you need to develop good habits so you won't be careless. Do you understand?"

Yingying stuck out her tongue, said "Yes," and went to the shelf to get a condom. She gently tore open

the packaging , took out the condom, and put it on me.

Yingying climbed onto the bed. She wanted me to lie on top of her, so we switched positions. I knelt

between her legs and inserted my penis into her vagina.

Wearing a condom on my penis was very uncomfortable, so I only did a few symbolic thrusts before letting Yingying

get off the bed.

The second person to get on the bed was Nurse Xu. She was rather thin, and her pubic hair was trimmed, making her look

quite sexy. She also wanted me to lie on top of her and fuck her. When my glans entered, I found that she was very tight inside, so

my mother applied some lubricant to my condom, and this time I finally managed to insert it smoothly.

"Oh, it's so big!" Nurse Xu groaned.

"So, do you like it?" Yingying asked with a smile.

Nurse Xu blushed and nodded, saying, "Of course, the bigger the penis, the more comfortable it is!"

"Okay, Dr. Li, you should give her a good time and make her feel good!"

"Yingying," Mom said at this moment, "you forgot again, we fertilized partners can't just think about

reaching orgasm, we have to find ways to make the other person ejaculate."

While Mom was lecturing Yingying, I took the opportunity to fuck her hard, fucking Nurse Xu until her eyes were glazed over and she raised her legs

and moaned.

"Alright, Nurse Xu can get off now," Mom said.

Nurse Xu reluctantly got off the bed, and it was clear that she was a little annoyed because she hadn't reached orgasm!

"Nurse Yu, it's your turn," Mom said.

Nurse Yu glanced at me shyly, but still took off her clothes. Her pubic hair was very

thick, but her skin was very white.

Nurse Yu straddled me, spat on her hand, wiped it on her lower body, and then

sat down on my penis.

"Is it all in?" Yingying asked.

"Hmm," Nurse Yu nodded, her body rising and falling rhythmically as she worked on herself.

"Alright, that's enough!" Mom told Nurse Yu to stop, then said to Nurse Zhang, "You

're not , so you don't need to do it."

Nurse Zhang blushed and said softly, "Director Huang, Yingying isn't married either. Since she did it, I

want to try too."

"Have you ever lost your virginity?" Mom asked.

Nurse Zhang blushed even more, saying, "What does that matter?"

"You can't possibly still be a virgin, can you?" Yingying laughed.

"Yes." Nurse Zhang's voice was even softer. I didn't know if she was confirming Yingying's statement

or admitting she was a virgin.

"Are you really still a virgin?" Mom was also surprised, after all, virgins were

a rare .

"Yes." Nurse Zhang nodded.

"Then it's even more impossible." Mom said.

"If she wants to try, let her try." Yingying said. I knew she was trying to fulfill my wish,

because she had already lost her virginity before we started dating. Although I've slept with many women, none of them were

virgins!

Mom looked at Yingying, then at me, and said, "Nurse Zhang, losing your virginity is no small matter. You

must think it through."

Nurse Zhang, somewhat flustered, fiddled with a lock of her hair. Nervous

, she stammered, "Director Huang, to be honest, being a virgin isn't really beneficial for me.

When my classmates always made fun of me about it! Donating sperm is an important part of our department..."

"Work, I... I can't stay out of it."

"Alright then, Yingying, go get some lubricant and apply it to her," Mom instructed. "Nurse Zhang, when

you're doing it, take it slow. It'll hurt a little at first, but just bear with it."

"Okay, thank you, Director Huang."

After applying the lubricant, Nurse Zhang shyly climbed onto the bed. Mom had her lie down so I could do it.

I had never fucked a virgin before, so I was naturally a little nervous. I knelt between Nurse Zhang's legs and placed the head of my penis

at the entrance of her vagina. Her pubic hair wasn't very thick, just sparsely growing around the labia majora, and the labia minora

were pink.

I nudged it with the head of my penis, and only went in a little before Nurse Zhang cried out in pain. I had to stop and look at

Mom .

"Don't worry," Mom smiled and said, "it'll go in with a little force."

I thrust hard, and the head of my penis finally went in, but Nurse Zhang screamed in pain again, so I stopped.

"You shouldn't do it!" I said. Although I regretted not taking her virginity, seeing her in

so made me feel guilty.

"Go ahead, I can bear it," she said, biting her lower lip as she tried to part her labia.

I thought to myself: a short, sharp pain is better than a long, drawn-out one , so I might as well go all out. So I gritted my teeth and thrust hard, and with a scream from Nurse Zhang, a stream of bright red blood flowed

from her vagina . My penis was stuck, unsure of what to do, and I looked at my mother helplessly. Seeing her encouraging look, I regained my courage, and with another thrust, I finally managed to push most of my penis in. 　　Nurse Zhang was already sweating profusely from the pain! 　　"Okay, help her massage her breasts, she'll be fine after a while," my mother said. 　　I massaged Nurse Zhang's breasts, then lowered my head and gently sucked on one of her nipples, my penis carefully moving in and out of her vagina. 　　"Oh~ ah," 　　Nurse Zhang groaned. 　　"How's it going? Are you feeling anything?" Yingying asked her with concern. 　　"Yes," Nurse Zhang nodded. 　　I looked at my mother again and said, "Is it okay now?" 　　My mother smiled slightly and said, "This is her first time. You must make sure she reaches orgasm, otherwise she will have psychological trauma in the future." 　　I couldn't wait, so I continued to fuck her. Soon, Nurse Zhang was moaning loudly. 　　"Ahhh, so good~" 　　My mother and Yingying and the others all laughed. I fucked her for a while longer, and then my mother called a halt, "That's enough, it'll swell up if you keep going!" 　　In this way, I fucked them all in just over half an hour. 　　"Director Huang, what should we do if Dr. Li hasn't ejaculated yet?" Yingying asked. 　　"It's just a training session today, it's okay if there's no ejaculation." 　　"But if there's no ejaculation, we won't learn how to collect semen!" Yingying continued, "Director Huang, could you give him a complete demonstration of sperm donation?" 　　"Alright then!" 　　Mom said, climbing back onto the bed. She pulled off the condom from my penis and handed it to Yingying, saying, "I don't need this, you can throw it away." 　　My penis was freed from the condom's restraint, and I immediately felt a surge of pleasure. Mom straddled me and quickly used her vagina to envelop my penis and began to fuck me. 　　Because there were onlookers, I didn't dare to be too unrestrained, and just passively endured Mom's ministrations. Mom seemed to be more uninhibited than me; she took my hand and placed it on her full breasts, so I kneaded Mom's breasts, my lower body responding to her ministrations. 　　Just then, Yingying spoke up by the bedside: "Let me tell you a secret: Dr. Li is my fiancé! Brother Li, don't you think so?" 　　The other three nurses looked at Yingying in surprise. The youngest, Nurse Zhang, said, "No wonder you look so natural! Did you intentionally get him to sign up for this sperm donation training?" 　　"That's right, I have an even bigger secret, do you want to know?" 　　My mother looked at Yingying with some worry. Of course, I knew what my mother was worried about. 　　I said, "Yingying, don't talk nonsense!" 　　Yingying giggled and said, "What are you afraid of! They'll find out sooner or later anyway. Let me tell you —Director Huang is Brother Li's biological mother, which means my future mother-in-law." 　　The nurses all stared wide-eyed at my mother and me. My mother blushed and sat on my penis , unsure whether to move or not, too embarrassed to know what to do. 　　"Isn't that incest?" Nurse Xu said. 　　"Don't talk nonsense," Yingying said. "Today is just a training class. Brother Li and his mother are just demonstrating sperm donation for everyone. How can you call it incest?" 　　"But how can a mother have sex with her son?" Nurse Yu said. 　　"Why not? Brother Li was born from his mother's vagina. What's wrong with just inserting part of his penis into her?" 　　"What you're saying makes some sense," Nurse Zhang said, blushing. "But according to you, mothers and sons can have sex!" 　　"Of course, there has to be a reason," Yingying said. "I'm the one who let them have sex today because if Brother hadn't come to register, wouldn't my mother-in-law have been fucked by another man?" 　　"That's true." All three nurses felt that Yingying's words made sense. 　　Seeing my mother's embarrassed look, I pressed her down, raised my lower body, and began to thrust my penis in and out quickly . 　　Mom quickly came to pleasure from my fucking. She tried to hold back at first, but finally couldn't help moaning, "Ahhh~ Oh~ Mom can't take it anymore~ Ah~" 　　I thrust hard again, and Mom quickly reached orgasm with a wild cry! 　　"Oh~ Ah~" 　　Mom's vagina convulsed, and her whole body went limp. I fucked her dozens more times, and my glans went numb, so I ejaculated . 　　"Yingying, quickly get the test tube." 　　Mom ordered Yingying to bring the test tube. She gestured for me to pull out my penis and then place the test tube opening at the entrance of her vagina.

Meanwhile, she didn't forget to educate her subordinates: "Look, this is how they collect semen after ejaculation!"

"Director Huang," Nurse Xu said, "Your son ejaculated so much semen inside your vagina,

won't you get pregnant?"

My mother blushed and said, "No, because I had an IUD inserted after giving birth to him, otherwise I

wouldn't have let him ejaculate inside me."

After my mother and I got out of bed, she told everyone to get dressed. She said, "

That's all for today's lesson. Does anyone have any questions?"

"No," the four nurses said in unison.

An unforgettable sperm donation training course ended just like that. I not only had sex with

five , but also, for the first time, with a virgin.

(To be continued)

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[My Mother and I Demonstrate Sexual Intercourse] (Part 5) Chapter 18

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