I am a biology teacher! My uncle’s younger daughter was ranked twelfth. She came to me to understand Pragya’s chapter and told me in words that she could not understand anything.
My name is Manish. I am a biology teacher.
My height is 5 feet 10 inches. My body is very fair and hard. My penis is 6 inches.
Today I am going to tell you all the sex stories of my sister i.e. my aunt’s daughter Yamini.
So while the girls are fingering their pussies, you all sit back, hold your dicks and enjoy the story.
Now let me also tell you about my sister, my aunt’s daughter.
Her name is Yamini and she is currently in 12th class.
He has just crossed the threshold of adulthood.
Her figure had completely improved and she looked two years older than her age.
Her breasts are 34 inches, waist is 30 inches and ass is 36 inches.
I don’t even know how all this happened at such a young age.
This incident happened in those days when he was about to take the examination.
She is a science student.
She considered coming to my house to study because I took biology classes for tuition.
I teach students all day long.
He said on the phone – Brother, can you teach me biology? My creatures are weak.
Me: Hey, this is also a question to be asked, you go home… stay here for a week or two, I will teach you everything.
he agrees.
I was feeling happy because Yamini was coming here and I wanted to suck her juicy breasts.
After two days.
Today my mother and son Yamini are coming. But I am going out with your father for a few days. There is some function at your Sharma uncle’s house.
Me: Okay mom… don’t worry. I will take care of Yamini, don’t worry about her. She is my sister.
The doorbell rang in the evening.
Me- Who is coming?
Yamini- Hey brother, I am… open the door.
Opening the door, I said – Hey Yamini, you are here!
I started saying in my mind, “How are you looking Yamini… I want to hug you and press your breasts to my chest.”
Friends, that day Yamini had come wearing a black tight suit. With open hair she looks like a hot pussy queen.
It had just rained and she was a little wet. She looked even more beautiful when she was wet.
Her breasts were shaking with joy as she walked.
The movement of her breasts through her shirt was visible like the waves of a river.
Also her ass looks like a watermelon.
Seeing him like this, I lost my senses.
Yamini- Brother… Brother… where are you lost… hug me my friend!
I smiled and moved ahead – Come on Yamini…come on. I was waiting for you for a long time.
I hugged my sister tightly.
The next moment her breasts were pressing against my chest.
I placed my hand on her waist.
Yamini held me tightly and said: Where are aunty and brother?
Me: She had gone to Sharma ji’s program. I will return in three-four days. Why don’t you like me?
Yamini turned away from me and said, “Unlike him brother, you are my favourite.”
Me- Come on, stop pretending…go change your clothes, I will cook food for you…come on.
Yamini- Okay brother. It rained on the road and all my clothes got wet. I also want to change myself. But I forgot to wear a nightgown under my clothes. What should I wear now?
I smiled and said – Okay, let’s do one thing, let’s go to mother’s room and see if there is someone of your size there.. Your size has increased a little. See if they come!
Yamini- What brother, you too… tell me! Where did the size increase?
Looking at her breasts I said – Yes, the increase in size is clearly visible.
Yamini smiled.
I took out some clothes from my mother’s wardrobe: pajamas, maxi, salwar suit.
“Take this…and see.”
Yamini- No brother, he is not coming.
Me: Hey friend, now I have only mother’s saree, wear it if you can!
Yamini- Yes, it will happen brother, I will wear saree today.
I started thinking, wow, we will get to see a hot scene today.
I said- Okay, see any of these. These sarees are sarees and have blouse and petticoat. …Okay, come ready, I will wait for you downstairs to eat.
Yamini- Okay brother.
She started thinking what to wear now…ok…let me wear this white blouse and black saree. Aunty’s bra does not fit, my aunty’s bra is 30D and my bra is much bigger than aunty’s.
Me-Yamini Come on man, what are you doing?
Yamini- The bus has just arrived.
As soon as I saw Yamini, she was wearing her mother’s shirt, which was small for her because her mother’s size was small and Yamini’s breasts were swollen like balloons. So she was not wearing a bra. That’s why her nipples are also clearly visible.
She was looking very sexy in her mother’s black transparent saree.
I did not take my eyes off him.
I said- Yamini friend, you look very sexy.
Yamini felt shy and said – Shut up brother, what’s the matter..
We both had food and after talking for some time we went to our room.
Yamini said, Brother, teach me science!
Me: Why now… let’s study tomorrow?
Yamini- No brother, I still have a lot to learn. Let’s start from today.
Me- Okay. Which subject to study? Bring books and notebooks.
Yamini – I like “Organism Reproduction” of Bio. I am not able to understand this topic. Even my mother didn’t explain it properly.
I’m starting to think this is a sexual topic.
“Okay, it’s… okay, no problem.” I will explain.
I am happy because whatever I want will come automatically.
I explained the entire subject of the book to her and asked Yamini if she understood?
Yamini- Bhaiya, I came a little but I am not able to understand this picture and its steps. Tell me in simple language brother…what are these reproduction, sperm, fertilization etc…I don’t understand anything.
Me- Okay wait, let me tell you in simple words.
“Yes dear.”
Now let’s look at the topic of reproduction of living beings. Does sentient being refer to all living beings or do you now understand only humans… How do future generations evolve into this?
Yamini- What does this mean?
Me: How are the kids?
Yamini- How are you?
Me: Don’t you know?
Yamini- No brother, we just know that babies come out of girls’ vaginas. But how are they formed internally? How are they… I don’t know anything about this!
Me- Do you know about sex?
Yamini- Shit: Brother, how do you say these words?
Me: That’s the topic.
Meanwhile, my eyes fell on her breasts.
I slowly took my hand to the table where Yamini was sitting bent over and her breasts were touching each other.
When I moved the table a little, her breasts also started getting pressed and the saree started sliding down.
At that very moment my pen fell down.
I asked Yamini to pick up the pen.
As she bent to pick up the pen, the saree slipped and she was standing only in her shirt.
I was looking at her breasts. She also covered her breasts.
She said- Brother, I do not understand. Do something practical and tell me!
I was absolutely stunned to hear what he said… How do I explain copying in a practical way?
I said- Look, when a male releases his semen into a female, a child is born.
Yamini – How to create a child from sperm? What do sperm look like…and where do they come from? …Please tell me everything, brother, okay?
Me- Wait, I will tell. I played a porn video on my phone for her to watch.
She started laughing – what was happening? What are these people doing naked?
Me- These people are having sex.
Yamini- Okay, are children like this?
Me: Yes, that’s how these sperm enter the body and make a baby.
Yamini- Okay brother.
As soon as I told all this, my penis became erect and one hand entered my pants.
I started caressing my penis.
Yamini sat on the other side of the table.
She started reading something from the book.
After a while I was about to cum because of shaking my penis so hard.
My penis became completely tight and semen came out. Milk flowed from the penis and reached Yamini.
Yamini- What is all this…where does it come from and what is it?
I stood up and started going to the bathroom.
Yamini saw my thick penis and knew that semen was flowing from it.
The girl started removing it from herself with the help of her fingers and then sat straight.
When I came out of the bathroom after cleaning my penis, Yamini asked – Brother, why is this now, you have never even had sex?
So I started laughing – Sorry Yamini.
Yamini-Why brother, why sorry?
Me- I started masturbating after looking at your breasts and then it came out.
Yamini- Brother, if you see my breasts, you will come out… is this also going to happen?
He is innocent friends. He’s really young, but he hasn’t seen the world yet.
Yamini- So brother, now I have to see it from the front… who knows, it might be useful for my exam.
I am beginning to think that he is crazy – but Yamini, how can you do all this… Hmm…
Yamini – Hey brother, I am your sister, what is there in this, it would be better if you teach me.
Me- So what should I do now?
Yamini- Just like I did just now…look at my breasts and take them out.
Me: Now he doesn’t go there that often. Will happen only once. Now more should be done about this.
Yamini- What else should I do, you tell me brother… I will do everything.
Me- Okay, you will do everything!
Yamini- Yes brother.
Me- Then open your shirt.
Yamini- Okay brother…take this.
Friends, what should I say now? The scene before me was like two Kashmiri apples hanging very tightly.
Me: My penis is erect but not out yet, Yamini!
Yamini-Why brothers?
Me: I have to stagger… I have stammered once before. Don’t like it anymore. You can shake it if you want.
Yamini- I am brother… surely there is nothing wrong with you?
Me- No, not at all. You do anything. let’s do one thing. If you want to understand the whole process…then I will play a video. You keep doing everything just by looking at him.
Yamini- Okay brother, I will do everything.
I posted a sex video of Mia Khalifa.
In that video, she was an innocent girl like my sister. After watching the video my sister started shaking my penis.
After some time, she took the penis in her mouth and started giving him a good blowjob.
Yamini says- Brother, she is the one doing this, right?
I said- Yes, yes, you just keep doing like this.
Yamini- Okay brother.
Friends, after some time Yamini took off all her clothes and put my penis in her pussy.
Since it was my first time, there were some hiccups, but soon everything was ready.
She also started enjoying sex. This was the first time he had sex with me.
I also fucked her hard and left all my semen in her mouth.
He said- Man, this is interesting. There is a lot of fun in this. Now I do it every day.
Hearing this, I felt as if I had won the lottery.
That night I fucked my sister four times and left her naked at home until mom came back.
Now I’m a fucking man who fucks his hot girl.
Friends, this is a short sex story about my biology teacher… did you like it? Please let me know in the comments.
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