I thought that nobles really were unreasonable creatures.
"Teach me about sex" he asked!
An indescribable atmosphere filled the carriage, like a love scene being broadcast on TV in a living room.
The three of us, me, my sister, and the young lady, are alone in a closed room.
"Well, won't you please hear me out?"
"please"
"For us nobles, one of the most important missions is to produce an heir. If there is no one to inherit the territory that has been passed down for generations, the family will fall apart."
That's true, but...
"To do that, you have to get married, have sex, and have children! I'm not so naive as to not know that! Babies aren't brought by storks or found in cabbage patches!!"
"My lady! Calm down!?"
While trying to calm the excited young lady, I spread out the curtains installed inside the car to cover the windows!
Thick curtains will not only block out light, but also sound!
"As the only daughter of a noble family, I must give birth to many children so that they can inherit the territory with peace of mind. That's why I need to obtain correct sexual knowledge and use it to put it into practice!"
A passionate young lady.
What on earth happened?
"...My Lady, the truth is, until just a few days ago, I didn't know how to properly make a baby...!"
"Seriously?!"
I couldn't believe my ears when my sister whispered in my ear in a hushed voice.
"Apparently she really did believe in cabbage fields and storks and stuff...! It seems like the lord's father was purposely shutting out all that information. He didn't want his daughter to learn about filthy things...!"
I thought that this was only natural coming from that lord.
Because I was an overly doting parent.
"But wait a second? So the one who implanted this raw sexual knowledge into that innocent young lady was... your sister?"
"Well, the conversation just drifted in that direction, so...!?"
It's not "just by chance".
Is your sister a sexual contaminant?
Just having her around transforms a girl's innocence into something erotic!
"No, Caliba-san provided important information! As I said before, I must give birth to a new generation for our lordship! I am the one who will inherit the blood of my father!"
Yes, isn't it impressive?
"In that case, one of the goals of my study trip to the royal capital is to acquire sexual knowledge that I have never had before! Since this knowledge is essential for the peace and stability of my family, it suits my purpose!"
"It's hard to handle because it seems so reasonable...!?"
"So, first I would like to hear from you two, who are the closest and most experienced. At the mansion, I couldn't speak freely because Father was watching, but now that we've departed, it's fine!"
Lady Staaf's eyes sparkled brightly...
"Please teach me about sex!"
"It's very difficult to answer!"
Normally, I would have pushed him down and said, "Let's try it out," but he's my employer after all.
Moreover, before he sets out, he is given a thorough warning by his doting lord.
Is it really okay to pour raw sexual knowledge into such a young lady and taint her?
"I heard from Caliber that men have something called a penis. I've never seen one before, so could you show it to me for future reference?"
"Elder Sister!!"
What on earth is that sister teaching me?!
If we've come this far, it's definitely time for sex, but I can't be rude to the master I just served, so what should I do?!
So here's what I came up with...
◆
"My sister and I are going to have sex."
"oh dear"
Fortunately, he has had plenty of sex with his sister, who is also his relative, and is quite experienced.
I've ejaculated inside my sister's vagina hundreds of times.
Thousands of times?
By observing this firsthand, Miss Starf will be able to understand what sex is all about.
"Are you having sex in public again? I'm not sure I'd be comfortable being seen by anyone other than my family..."
"You don't need to be so embarrassed about your sister now. If it helps the master you'll be serving from now on, I'll expose my crotch and shame."
The carriage we were riding in now had its doors and windows closed with curtains, making it a completely sealed room.
In fact, it is even the best environment for men and women to engage in intimate conversation.
What's more, the unpaved roads of this fantasy other world cause a lot of bumpy riding in a carriage, making them perfect for drowning out the creaking vibrations of sex.
So the inside of the carriage while we were traveling unexpectedly turned out to be the perfect spot for sex.
"Well, I guess I need to give you a lecture before we begin."
"I-I'm telling you?!"
The sister is confused.
I think the young lady will find it easier to understand if she hears an explanation from someone of the same gender, so I'll leave this all to you, big sister.
Now, say all the nasty and vulgar things you know.
"So, my lady, I, the unworthy Caliba, will explain to you about sex."
"Thank you very much!"
The students themselves are very serious about their studies.
Actually, sex is a serious thing.
"Sex is a ritual that men and women perform to have children."
"Yes, I learned that in the last lesson!"
Class.
"The specific way to have sex is... hey, Sao, this is more embarrassing than I thought!"
"Continue."
"You brute! ...Sex is when a man and a woman rub their genitals against each other."
That's right, good job, Professor Caliba.
With that same spirit, why not be more open and tell us even more sensitive matters?
"Genitals are... a man's penis and a woman's vagina."
"Dick? Or pussy?"
The young lady is chanting dirty words?
Without even understanding its obscene meaning!
Wanting to get more excited, I whisper to my sister.
"That's right, that's important, so, um, should I repeat it?"
"Okay!"
"Here we go, cock, cock, cock, cock, cock..."
"Okay! Cock, cock, cock, cock, cock..."
My sister's face was bright red as she spoke.
It was an unexpected stray bullet.
"Next is pussy, pussy, pussy, pussy, pussy...!?"
"Pussy, pussy, pussy, pussy, pussy, pussy, pussy, pussy...!"
"No, I can't take it anymore!"
Her face was redder than a boiled octopus and she covered it with both hands.
"I thought I'd gotten used to it and wouldn't feel the slightest bit embarrassed! Why am I so embarrassed? Your innocent heart reminds me of the shame I thought I'd lost!!"
I'm glad you were able to get back what's important to you as a human being.
It's nice to have sex where you cast aside all sense of shame and passionately seek each other like animals, but it's also fun to have sex where you tease a shy partner.
I think I'll be able to humiliate my sister in a different way from now on.
"From now on, I would like to explain in detail about penises and pussies...!"
Still, she endures her embarrassment and continues to teach her husband about sex.
"Let's start with pussy. It's more familiar to us. This one."
Saying this, my sister spread her legs and showed them to me.
In order to teach the young lady, we had already taken off our underwear and exposed our genitals.
"This hole between your legs is your pussy. I'm sure you have one between your legs too, young lady?"
"Yes, there is..."
As she said this, the young lady unconsciously reached for her crotch.
"Young ladies who have not yet had sexual experience may not know why this hole exists... or even be aware of its existence, but this pussy exists to let a man's penis inside it."
"Huh!?"
Saying that, Nee-san guides her gaze to my lower body.
Watching the two girls interact, my penis became fully erect and was rock hard.
"This is a penis. It's the male reproductive organ."
"Eeek! What is this!?"
The young lady must have seen an erect penis for the first time in her life.
I was honestly in awe of its size and strength.
"Isn't it inconvenient for a gentleman to have something this big between his legs? It looks like it would be very difficult to move around!"
"Well, it seems that it can be changed depending on the situation...!"
My older sister had a similar reaction.
"It's big and thick... wait a minute? You said that this would go inside your pussy, right? Is that true? Do you mean something this big would split your crotch to fit in? You'll start bleeding!"
"Don't worry. Women's bodies are a lot stronger than we give them credit for. Even with a cock this big, my pussy has no problem swallowing it."
That's what my sister said.
She straddles the lower half of my body as I sit in the carriage seat.
"Please watch closely....mm♥♥"
Slurp slurp slurp... with a blissful sound, the tip of my sword was swallowed into the flesh.
The feeling of warm, warm flesh enveloping the entire penis.
"Ahh♥♥ Ah♥♥ How is it my lady♥♥ Your penis went inside your pussy, didn't it♥♥"
The position is rear-entering cowgirl.
As the purpose today is to provide sex education to the young lady, the choice was made with care to ensure that the joining of the male and female genitals is clearly visible to a third party.
In fact, the young lady can surely get a good look at her sister's lower mouth, greedily licking and sucking her penis, deep inside her with her legs spread wide.
"Ah, amazing...! A pussy is usually tightly closed, but when you need it, it can open up like this?"
"Even a young lady like you has such a wonderful pussy between her legs♥♥ She's at an age where she wants to have sex, so she can do it whenever she wants... squirm♥♥♥♥"
The thrusting head of my penis grazed the depths of my sister's vagina.
Although it hadn't moved up until then, the subtle vibrations of the carriage moving seemed to be providing my sister with intermittent sexual stimulation.
"My lady, I have something to add."
"Wh, what is it?"
"You said it was easy to take a penis in your mouth, but that's not true. Before you insert it, you need to carefully loosen your vagina and soften the flesh before the penis can enter."
"But Mr. Caliba has come in?"
"That's because my sister is a slutty, perverted woman. She's always thinking about sexy things, her pussy is wet, and she's always ready to accept a man."
When she tried to protest, I silenced her by thrusting my hips upward.
She's a lewd woman who is swept away by this level of pleasure and can't say anything.
"You're always ready to have sex, and you're a serious woman who's fully prepared to have children and leave an heir behind! I want to be a lewd, slutty woman like you!"
The young lady's innocence hurts my heart.
All the while, my lower body feels like it's melding with my sister's, so I thrust up along with the swaying of the carriage, continuing to stimulate each other's sexual senses.
"Ahhh♥♥ oh♥♥ yeah, yeah...♥♥"
"Quiet panting."
And so, even in this closed room, we were able to fully enhance each other's sexual desires, and I was able to ejaculate inside my sister.
Brrrrrrrrrrrrrrrrrr...
"Hihi...♥♥ My lady, semen has just been poured into my vagina. I'll show you."
When my sister puts her hands together and pulls out my penis, a white liquid oozes out of the hole.
The young lady gazes at the scene with fear and excitement.
"What is this white stuff...? Is it pus?"
"No, this is called semen, which is what comes out of a man's penis to make a baby. When this is poured into the depths of a pussy, a baby is made."
"Why?!"
"...I wonder why?"
Are concepts like sperm and eggs and other microscopic things not understood in this world?
Well then, I guess I won't bother to explain it either. It would just make things more troublesome.
Let's just leave it at that.
"Anyway, it's important that you release this semen inside my vagina. Otherwise I won't be able to conceive."
"Is that so? Your penis and semen are both great, aren't they...?!"
As the young lady stares, a drop of semen drips from between her sister's legs.
"Oh, my precious semen...!?"
Probably reflexively, he caught the dripping semen with his hand.
The young lady was at a loss as to what to do with the semen afterwards... and ended up with the semen on her hand...
"Lick."
and licked it.