Hardcore Incest sex with teen cousin sister Part I

Hi guys I am Kiran, this is my first story on FSI.

This is the story about how I had incest sex with my cousin sister while teaching her biology. This happened when I was in first year of engineering and monika was studying II PUC. During that time I used to masturbate around 2-3 times a day and would do anything for a pussy. I was a virgin and didnt talk too much with any of the girls in my college, so then monika came to my mind because, when we were small we used to go to our grand mother’s house in our school holidays, when my mom and aunt used to sleep in the afternoon we would play games in our home and one day my aunt and mom brought both of us pair of underwear we took bath and wore the new ones and in the afternoon we started playing again and after some time she raised her frock and showed me her underwear it was pink.

Then she said “show yours” I removed my half pant and showed mine then she looked outside

the room if somebody had woke up and then she said “we both have same ones” and asked

“can we exchange our undies?” I said yes, she removed hers and i couldn’t see anything

because of her frock and I also removed mine but due to my long T-shirt she too didn’t

see anything then we both handed our undies then suddenly she raised her frock then I saw

her pussy it was hairless and I could see the cleft from where her slit started, then she

asked”do you want to touch there?” I said”yes” from my childhood I was always curious

what could be in between the slit so I kneeled in front of her and with my thumb and

index finger I spread her pussy and I couldn’t make out what was in there as it was dark

then she asked me “Can we sleep over each other” I said “No” as I was afraid then we both

put our undies back, and after our holidays we came back and never talked about it and we

used to look at each other awkwardly whenever we met.

Now coming back, Monika had performed poorly in her I PU exams so my aunt and uncle

were worried about her studies and once when had went to meet her they scolded her and

told her to learn from me and my aunt asked me ” Can you teach her whenever you are free”

I said “no problem” then my aunt said “But don’t forget about your studies for sake of

your sister’s” then I came back to my home I was very happy that I will get a chance to

spend time with my sister. My aunt’s home was around 10 minutes ride on bike, my uncle

used to remain in home all the time and my aunt was a job holder who used to come back

home at 6:30 PM.

First day I taught her maths and as my uncle was in home I didn’t tried to seduce

her. This went on for one week and most of the maths chapters which she didn’t understood

were clear to her and on the next day when I went to her home I asked what she wanted to

learn she said “everything is clear to her except some parts of biology ” then I asked

“tell me which parts you don’t understand I will read them and explain them to you and

you do some other work because I need time as I am statistics student” she said ok and

started to show me the chapters to explain, I was shocked because she pointed at the

chapter which contained about human reproduction. She was quiet while pointing at it as

uncle was in home. Then she went back and started practicing something.

I read the chapter it was about prostate gland, sperms, ovaries, zygote and family planning.

After sometime my uncle said that he needed to meet somebody and is going to come

back around 10 in night I saw at clock it was 2 pm uncle said “If you are going to home

I can drop you” I said” No, still have some chapters left” he said ok and left home, we

both were alone in home now and while reading the book I came to know that my sister was

horny that’s why she has asked me to explain this and also she knew about her father

going outside. Now we both were sitting in the hall, I said “I have read the chapter and

I understood only a little as I am stat student so I will explain you whatever I know,

if you have finished your work I can start explaining” she said “OK, I will go to toilet

and come back” and then she came back and started closing windows, as some people were

standing outside. Then she sat on sofa beside me and I started explaining. “This is about

reproduction i.e how babies are produced, to produce a baby combining of male and female

sex organs is needed, when combined male sex organ releases semen inside female sex

organ which combines with ovaries of female and then baby starts developing”. Then she

asked”what is semen?” I said “It is a white fluid that is released from male sex organ

during sex” then I asked her “what do you call for male and female sex organs” she said

“tunni(penis in kannada) and tull(vagina in kannada)” she asked “why does semen gets

released from penis” I said “due to simulation” she said” Oh! who simulates it ” I said

“you dumb! it is simulated by you girls during sex” she asked “Then how girls simulate

it?” then I said”It can be simulated by many ways i.e through your vagina, mouth, hands”

“By mouth …….?” she asked i said “girls take the penis in mouth and lick it until

semen is released” she said” isn’t it dirty” then i said” even boys do it to girls\” her

mouth was wide open when she heard it, then she said ” we pee from down there how can you

lick that” then I replied “nothing is dirty when it comes to pleasure”.

She seemed to agree with me then I told that I was going to explain about sex

organs in general, she nodded, then I said”male sex organ consists of penis,testis and

scrotum, penis is like pipe from which we boys pee and even semen also comes out of this”

she was nodding her head, I continued”each male has two testis where semen is produced

and they will be inside scrotum” she said”Ya I have seen kids sex organs”.

Then I started explaining about female sex organs, I said “female sex organs

are vagina where penis is inserted, its lips which look like slit, clitoris contains many

nerve endings which is used for pleasure” she asked “is it the one which is hidden below

lips?” I nodded my head she said “I feel tingling in my stomach whenever I touch it” I

came to know that she has completely turned on, then I asked “have you ever orgasmed?”

she said “No, I don’t know what is orgasm, but whenever I keep on rubbing my clitoris I

feel like tension building up in my stomach I get scared and stop rubbing it”.

I said “OK now let’s see about family planning” after a affirmative look on her

face I said” family planning is about having pleasure of sex but not getting pregnant”

she asked eagerly”How is that?” I said “by using condoms and some other device called

copper-T, condoms are like rubber shield worn on penis which prevents semen but female

cannot feel the warmth of hot semen” she said “what’s the point when you cant feel

pleasure in tull(pussy) aren’t there any other methods?” then I said\” you can use i-pill

or you can have sex after your periods around 5 days without having protection” she was

delighted to know all this.

Then I said “let’s conclude if you have any doubts then ask” she said “what does

penis and semen look like” I said”I have told you earlier and haven’t you said you have

seen kids penis” she asked “can you show your penis?” I said “it’s wrong” she said “you

are just teaching me and how can it be wrong” I said ok and got up and by then there was

a large wet spot on my pant and she asked “is it pee?” I said\”its precum it comes from

penis whenever we are excited just like your pussy” she said in a playful tone” so you

are excited, my tull(pussy) is also drenching even my skirt is wet, now remove your pants

I want to see it” I said”ok now on you can call your tull as pussy and my tunni as cock”

she nodded and I slid down my pants along with boxers my cock was completely

erect and I have it of decent length of 5.9 inches. Monika’s eyes lit up when she saw my

cock and she exclaimed “its huge!!!! and hairs are so tiny” then I said “its of average

size, other guys claim to have bigger than this and I have trimmed it” she asked “can i

touch it?\” I agreed, then she gripped my cock and said “it’s very warm” she left my cock

and squeezed my scrotum in her right hand, I squealed in pain and cried “be gentle with

the balls” she nodded and started caressing my balls gently and said “these are heavy” I

replied”they are filled with lot of semen” then she asked “can you show me your semen?” I

was very much turned on by now and wanted a release very badly I said “ok, but this place

will be complete mess as there is lot semen developed in my balls due to all this sex

talk” she asked “will it be that much?? and how many times can you release it??” I said

“my sweet little sister, I release it only one time but if I consume viagra I can go on

for two to three hours” she went inside her dad’s room and brought some capsules and

asked”are you talking about this?” they were viagra capsules by some other name, she

said she saw every night her dad taking those pills so she brought me them.

I said “bring me water” she brought and I took out one capsule she said “Not one

take three mom and dad have went relatives funeral they will come tommorow night, they

had texted me and I want you to release your cum all day for me”

To be continued…

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Stay tuned for Final part II