[Pocket watch][Alignment-] Kana teaches the class about sex

You have wanted to push the limits of the pocket watch, you know how powerful it works on women for some reason. You decide to try something a little bolder.

You stand up from your seat in the back, being the only one standing most of the class focuses their attention on you.

You you begin to walk up to the front and pull out the pocket watch, Kana opens her mouse presumably to ask you to sit back down but before you even start swinging the watch the entire class is silent and focused. You hold the watch up to Ms. Kana and swing it, her pupils dilate.

"Todays lesson is about sex ed." you say, she nods, you think for a moment about how to word your request, "You will teach the class and give a practical demonstration." you snap your fingers, the entire class jerks as if waking from a dream and return to normal, you go back to your seat.

Ms. Kana stands up and begins drawing a diagram on the chalk board, "Todays lesson is an important one," she starts, "It is about your sexual education, it is important to understand it fully if we want our nation to grow! As you know, our nation is declining in population, our new curriculum aims to correct this." She turns to face the class. "What is sex?" she asks, looking around the room for answers.

The students mumble amongst themselves. "I think its when a man puts his thing in a woman's vagina," says one of the girls in the front.

"Yes! That would be an example of intercourse, however not all sex involves penetration and does not always occur between two people," Ms. Kana replies, "Sex can be anything from oral to intercourse and everything in between. It is also important to understand how reproduction works so that we may prevent unwanted pregnancies or increase the population." she points to one of her diagrams that depicts an outline of a penis, "Today we will focus on reproduction." she continues, "If you want to have children, you must first become pregnant. This means you need to have sex with a man who can insert their sperm inside your vagina." she moves over to a different diagram and continues explaining about the different parts involved, eventually she gets to a diagram of a vagina.

"Would someone like to volunteer to be a real life diagram?" she asks the class. A few of the girls raise their hands, "Ok then, you." she says, pointing to one of the girls, "Come on up and take off your clothes."

The girl walks over to the chalk board and takes unbuttons her shirt and undies her bra, then she pulls down her skirt, revealing black panties. Ms. Kana points to the diagram and says "This part here, this is called the vulva, which includes your labia. The labia are fleshy folds of skin that surround the entrance to the vagina. This is what the real thing looks like." she points at the girl's underwear.

"Now, take off those panties and show us." she says, smiling. The girl removes her panties, revealing her bare glistening pussy.

"Now insert your finger into your vagina and show us the inside." Ms. Kana says, "The girl lowers her fingers against herself until she meets her opening. She sticks her middle finger inside her cunt and begins moving it around.

"That's right, now use two fingers, I want you to spread your labia apart so that we can get a good look at the inside." she says. The girl spreads her lips apart, exposing her pink insides to the class.

Another girl raises her hand, Ms. Kana points at her, "I don't get it," the student asks, she blushes, "How does a penis fit in there?"

"That's a good question! John," she points to you, "Come up and show the class the size of a penis."

You stand up, and walk to the front of the class. You take off your pants and boxers, letting lem fall around your ankles, revealing your dick.

A few students gasp in surprise. "Wow," says one of the girls, "Are they really that big?"
"They're not all that big," says Ms. Kana, "And they can be even bigger. The vagina, however, can stretch a lot more than you can imagine. Care to demonstrate John?" she gestures to the students still spread pussy.

"Of course," you say, you grab your cock and line it up.

"Turn a bit so the class can see." she directs to to stand and give a side view to the class. You do and the exposed student do so.

You realign and press forward slowly and spread the girls inner labia, she moans and closes her eyes, the class oohs. You stop with your head barely hidden by her pussy.

"Now try to push your shaft all the way into her." Ms. Kana instructs, you push further, this time pushing the tip of your cock deep into her insides. The girl groans and pushes back at you, causing your cock to slip further into her, she cries out in pleasure, then quickly covers her mouth in embarrassment.

She is incredibly tight but you continue to push until you feel her cervix

"Gotta love the stretching power of a vagina." Ms. Kana announces.

One of the other girls raises her hand, "I still don't understand. What is going to happen if a man and woman have sex?" she asks.

"Well, men ejaculate semen, and if it goes into the vagina. If the sperm cell finds an egg," she points to the students belly, "a baby will develop in the womb." Ms. Kana explains, "Without the egg being fertilized by a man's sperm, no pregnancy will occur."

The girl you are inside of squeezes your dick and shouts in surprise. "I didn't know that! I don't want to be pregnant!" she exclaims, holding onto your shoulders for support.

"Don't worry," Ms. Kana reassures her, "It only happens if the man ejaculates into the women. Sperm cells cannot survive outside the body. They die within minutes after leaving the penis." she points to a diagram that shows a tiny sperm cell.

"So what makes a man ejaculate?" Ms. Kana asks the class. She points to one of the girls.

"Orgasm?" the girl responds.

"Yes, you're right. Men can experience orgasms during sexual intercourse or masturbation. A man can also ejaculate when he gets excited, sometimes even before penetration occurs. But the most common source of semen is during sexual intercourse." she says, pointing to the girls pussy.

She continues to explain how girls and boys orgasm while you stay balls deep in the student.

"In girls, the clitoris, an erectile structure located above the opening of the vagina, is the primary source of stimulation. It has thousands of nerve endings, and its sensitivity increases as it becomes engorged." She uses her fingers to pinch the clitoris of the exposed girl, causing her to moan.

"Have you ever heard of the G spot?" she asks the class.

"No," says one student, another shakes her head.

Ms. Kana explains, "The G spot is the small area inside a woman's vagina just beneath where the urethra joins. This is the spot that many women find sensitive enough to stimulate them to orgasm." She touches the middle section of where your cock meets her pussy, "This is the part that is closest to the G spot, and it is highly sensitive."

Can you show us what an orgasm is like, Ms. Kana asks the girl.

"Okay," the girl says, "I can try."

The girl moves back until the tip of your cock presses against her cervix, putting her hand on her clit.

"Oh fuck!" she gasps, "It feels so good."

She begins moving herself up and down, sliding up and down your shaft.

"Move your hips around," Ms. Kana tells her, "Make sure the tip of his penis hits the right spots."

"I'm doing it now," she replies.

She starts rubbing her clit faster, moaning loudly.

"Are you close?" Ms. Kana asks her.

"Oh my God yes!" she yells, "I'm almost there."

Suddenly, she shouts and screams, "YES! I'M CUMMMINNNNGGG!!!"

Her pussy squeezes your cock tightly, your balls tighten you don't know if you can hold it much longer.