Chapter 131 – An Introverted, Quiet Sister Turns Into a Wild Woman During Sex
“Fuck me faster, harder, faster fuck my cunt till it rips”
“I never thought you would have this kind of side.. But I love you so much, I love you”
Park Seo-eun, 25 years old, H cup
Seo-eun is my younger sister who is 5 years older than me.
Seo Eun-yi had a quiet personality, was meek, and did not get angry easily.
But when she has sex with me, she changes into a completely different person.
When she was having sex, she seemed like a sex freak, and she liked to tease herself very hard.
As a result, I also liked having sex with Seo-eun, and I fell for Seo-eun’s opposite charm, which is different from other women.
“Seo Eun-ah, shall we do something with your brother today?”
“Huh? Yeah.. I’m always happy if oppa wants to..”
When they’re not having sex, they’re so quiet and docile.
‘Two completely different appearances.. Which one is the real Seo-eun? Well, what’s important is that we like each other’
Since we can’t have sex at home, I took Seo-eun to the motel.
My parents went out and said they were going to eat with her Seo-eun, so I came to the motel.
She entered the motel room and even then Seo-eun stood awkwardly, and I kissed her and massaged her breasts.
“Seo Eun-ah, I love you”
“I… I love you too brother..”
The reason Seo-eun and I had sex was really absurd.
Three months ago, when I came home from work as usual, my parents were not there and I heard a strange sound from Seo-eun’s room.
I knocked on her room and waited, but there was no response.
“Seo Eun-ah, what’s going on? Going in?”
“Brother, wait!”
However, I had already opened the door to Seo Eun-i, and the sight unfolding in front of me was shocking.
Seo-eun, who seemed innocent due to her quiet and introverted personality, took off all her clothes and was poking her pussy with a penis-shaped masturbation device in front of her mirror.
I ate her shock, and as if her body stiffened, I stopped and looked at her Seo-eun. Was sitting
“Seo.. Seo Eun-ah.. What are you doing right now..”
“That’s why I told you to wait a minute.”
Seo Eun covered her body and she went to bed and covered her body with the blanket.
‘But did Seo Eun have such a good figure? I knew how big her breasts were, but she was that big..’
While I was thinking about it, her cock became more and more erect.
And I said something really nonsense to Seo Eun.
“Seo Eun-ah, would you like to put your brother’s instead of that one?”
Then, Seo Eun-yi was taken aback, and she said what did she mean by that?
“Ah.. I’m sorry, I was so excited when I saw Seo-eun looking at your body without realizing it..”
And after apologizing to Seo Eun-i, I told her to be careful next time because I’ll pretend I didn’t see this, and I tried to leave her door closed.
“You, put it in! Brother’s…”
At that moment, Seo Eun-i asked me to insert my cock.
“Huh? What?”
“Please put it in.. Oppa’s cock..”
Seo-eun asked me to have sex.
‘What.. Is it real? Or just silence?’
“I won’t tell my mom and dad, so it’s okay”
“No.. I want to do it with my brother.. Actually, masturbating… I did it while thinking of my brother…”
Seo Eun-yi was masturbating while looking at her cell phone, and there was a picture of me on it.
And I looked at the computer screen on Seo-eun’s desk, and the background of Seo-eun’s computer was my picture.
“Seo Eun-ah.. Why me..”
“I don’t know.. I just like you so much..”
“I’m serious..?”
“Look carefully at the computer screen.. You will know whether I really love you or not..”
There were several folders on the computer screen, the folder name had a heart next to my name, and inside the folder were photos I had posted on social media.
‘It’s real.. Then… Did Seo-eun really want to have sex with me?’
“Seo Eun-ah, do you really want to have sex with your brother?”
“Yeah… It’s true…”
“Then… Shall we do it now?”
“Huh..”
I closed the door, undressed, and went to bed.
Then she walked over the blanket and removed Seo Eun-yi’s hand that was covering her body, and then Seo Eun-yi’s large breasts were revealed.
“Seo Eun-ah.. Have you ever had sex?”
“No, this is the first time…”
“By the way… Can you do that first time with me?”
“Yeah.. I want you to take my first one..”
So I laid Seo Eun down and kissed her and massaged her breasts.
Seo-eun caressed her while touching my cock, and I caressed her nipples while sucking her breasts.
“Seo Eun-ah… Are you feeling good?”
“Yeah.. So good.. Being able to have sex with my brother..”
I sucked her Seo-eun’s breasts, then went down under her and started licking her Seo-eun’s cunt.
Hurulup- Hurrup- Shurup- Shurrup-
Her pussy didn’t smell, and she was soaking wet because she had just masturbated to her.
“Brother.. Suck harder.. Harder..”
“Looks like you’re in a good mood, okay, I’ll suck you harder”
I sucked harder on Seo-eun’s cunt, and Seo-eun began to moan at her.
“Huh … Huh … Huh … I like it … So good .. I’m crazy ..”
Then, she inserted her fingers into Seo-eun’s pussy and thrust it hard, then licked her tongue on Seo-eun’s clitoris.
Her cunt juice came out little by little, and the amount gradually increased, and I sucked her cunt while drinking Seo-eun’s cunt juice.
“Seo Eun-ah, will you suck my cock too?”
“Okay, I get it”
I climbed on top of Seo-eun who was lying down and put my cock in front of Seo-eun’s mouth.
“Brother.. Your cock is really big.. I think it’s thicker and bigger than my masturbation device..”
“Because I am proud of myself.. And my pride…”
Seo-eun grabbed my cock and started sucking hers.
Chug- Churup- Chuleup- Whoop- Shup-
Seo-eun sucked her cock skillfully, as if she had done it many times while sucking her masturbation device by herself.
“Seo Eun-ah, you’re really good at sucking your cock.
“Thinking of my brother.. I washed my clothes every day.. To make you feel good when I do it with you someday..”
And Seo-eun sucked as hard as she could and sucked on her cock, and I got excited and my cock got bigger.
“Seo Eun-ah, I’ll put it in now”
“Yeah.. Put it in oppa.. You can wrap it inside.. Today is a safe day..”
I grabbed Seo Eun’s legs and inserted her cock into her cunt.
Although we had never had sex, Seo-eun’s cunt was wide enough from her continuous masturbation, but the hole was narrow enough to receive my cock.
Little by little, he pushed her cock in, and from then on, Seo-eun’s true self began to emerge.
“Brother.. I like it so much.. I’m going crazy.. I put stuff in it and put the actual cock in it.. I love it so much.. What should I do..”
“Don’t hold back, express everything.. So that makes me feel good too…”
Then Seo Eun-yi became more and more reckless, and the way she spoke changed completely different from usual.
Seo-eun showed her rough side as I beat her cock fast.
“Fuck me faster.. Harder!!! Faster!!! Fuck me harder so you don’t have to tear my pussy!!”
I was taken aback by Seo Eun’s appearance for a moment, but seeing that appearance made me even more excited.
‘You’ve turned into a completely different person.. Is this what Seo Eun-yi looked like during sex? It’s absolutely amazing, isn’t it?’
I started fucking her cock very quickly, just as Seo Eun-yi said, and Seo-eun moaned and begged her to make it harder and harder.
“Fuck me harder!!! And spank me, beat me on the chest and excite me!! Oppa… I love your cock.”
“Yes. I’ll do whatever you want.”
Pair – Jjaak –
I slapped her hard on the cheeks and slapped her chest while driving her cock, and Seo-eun got even more excited and even cursed at her.
“Ha.. I love it so much.. I’m going crazy!!! Hit me more brother.. Ha ha.. It feels so fucking good.. Oppa’s cock… It’s so big and thick that I’m going crazy. Ha ha!!!”
The sight of Seo Eun Yi swearing at her made me even more excited.
‘Seo-eun was such a kid. She also doesn’t know her sexual orientation unless she tries it… She’s more aroused by swearing’
“Seo Eun-ah, curse more, harder and louder”
“I’m a fuck .. I love you .. I’m going to have it .. Ha .. Nick .. Fuck .. The only baby who asks her brother to have sex will be the only you.
Really swearing But when I heard that curse, I got even more excited, so I turned her back over and put her cock in the back and fucked it hard.
“Crazy bitch… Do you like your older brother’s cock that much? Save my picture and look at my picture and pierce your cunt and want my cock that much?”
“Fuck, what can I do with a good thing? It’s because you bastard is handsome.. Bad bastard.. Why are you my real brother..”
Seo-eun suddenly cried and complained, and she really loved me.
And she begged me that she didn’t want to give my cock to anyone.
“Brother.. Now give your cock to me.. I’ll ask you.. Don’t put it in another girl.. I’ll do what I tell you to do.. Just give it to me..”
“This pretty and juicy woman wants my cock, of course she should. I won’t do it with another woman anymore.”
And I fucked Seo Eun-yi’s pussy hard, as if tearing it apart, and grabbed her Seo-eun’s chest as if it would explode.
“Swear at Seo Eun-ah more, and tighten her pussy more”
“니 자지가 너무 커서 조이기 힘들어 개새끼야.. 잘생긴게 자지는 또 존나크네.. 시발.. 너무 좋아 미친놈아.. 안에다가 싸. 부탁이니까 안에다가싸”
“Bitch bitch, I don’t know if she’s pregnant”
“It’s okay to get pregnant, so don’t leave me, just fuck me, you crazy bastard..”
That’s how I had sex with Seo-eun, swearing, and I drove my cock even faster and ejaculated inside Seo-eun’s pussy.
While ejaculating, I slapped Seo-eun in the face from behind her, and Seo-eun groaned and breathed heavily while receiving my semen in her cunt while being beaten with a fist.
After I had ejaculated from her, I took my cock and laid her on her back while watching the semen flow from inside Seo-eun’s cunt and kissed her.
“Brother.. Don’t you hate me like this..?”
“No, I like it better because it’s a reversed look? Can you have sex with your brother every day from now on?”
“I’ll do it every day.. So just love me.. Be my man.. I’ll conceive my brother’s child if you want.. It’s okay even if you get kicked out of the house..”
“Crazy bitch… You don’t have to go that far”
That’s how I had sex with Seo-eun for the first time, and when her sex was over, Seo-eun returned to her usual self, and I was really amazed by her appearance.
After that day, Seo-eun and I had sex every day, and on days when my parents were at home, I went to a motel and enjoyed sex with Seo-eun.
The different looks of Seo Eun-yi were really attractive, and I fell in love with Seo-eun more.
“Brother.. Today is a dangerous day..”
“Still, I’ll wrap it inside. I’ll be responsible if I get pregnant…”
“Yeah.. Don’t abandon me and love me till the end..”
And Seo-eun and I started having sex, and Seo-eun suddenly changed and talked.
“You crazy bastard, how are you going to take responsibility when you get pregnant?”
