Chapter 92 – Made a 95kg Younger Sister Into a Huge Celebrity With a Sex Diet
“Really.. Is it going to be a diet..?”
“Yeah, because I burn about 150 calories every time I have sex.”
Kim Ji-yoon, 22 years old, D cup, 165 cm, 86 kg.
My younger brother is extremely obese.
I have been teased for my fat body since I was young, but I was able to endure it because it was not a severe teasing.
However, after becoming an adult and entering university, I was secretly ostracized among my peers.
I didn’t even get attention from my seniors, and now that I’m in my third year, even my juniors are so far away from Jiyoon.
Then, Ji-yoon became more and more timid, lost the will to live, took a leave of absence, and stayed at home without leaving the house.
It’s all my fault that Jiyoon ended up like this.
There is a 15 year age difference between me and Jiyoon, and I was born as a late child.
My parents are 57 years old now, they gave birth to me when I was 20 years old, and Jiyoon gave birth to me when I was 35 years old.
That’s why I was very fond of Jiyoon, and I took care of her and raised her like a daughter I gave birth to.
I loved Jiyoon to the point that even my friends asked if I was a daughter rather than a sister.
As a result, Jiyoon became extremely obese.
I always felt sorry for Jiyoon, but I couldn’t recommend a diet.
The reason I made her fat and told her to lose weight was because it made no sense.
However, as Jiyoon went on, she ate more and more, and became the only one who spoke and relied on me.
Ji-yoon asked me every day if I hated seeing her because she was fat, or if I didn’t like myself anymore, but in my eyes, Ji-yoon was an infinitely pretty and cute little sister.
As the days passed, Ji-yoon asked me dozens of times every day as if obsessed with it, and I was worried about Ji-yoon like that, but I could only say that she was pretty.
It’s been three months since I quit school and cut myself off from the world.
Jiyoon gained more and more weight and became over 95kg.
I couldn’t wait any longer, so I talked to Jiyoon after thinking about it.
“Jiyun-ah, do you love your brother?”
“Yeah. Oppa is all I need. I don’t need anyone else. Oppa, are you pretty even though I’m this fat?”
“Yeah, brother, our Jiyoon is so pretty. That’s why I want to try it with Jiyoon.”
“With me? Let’s like it.
Jiyoon gave me her body like that.
I undressed Jiyoon, put her on the bed and started sucking on her breasts.
Ji-yoon’s chest is quite cut, but her lower chest circumference has grown due to her belly fat, so it was measured as a D cup, but if she loses weight, it will look like a G cup.
As I sucked on her breasts, I started to poke my fingers into Jiyoon’s cunt.
I kissed Jiyoon and talked.
“Jiyun-ah, can I put it in?”
“Yeah… Put it in”
So I grabbed Jiyoon’s leg and inserted her cock.
Ji-yoon’s cunt was tight, and I quickly fucked her cock, feeling Ji-yoon’s cunt.
Then he grabbed Jiyoon’s arm and fucked her cock fast and hard, and he started to sweat.
Jiyoon also tightened her cunt and started to sweat as her body shook greatly, so I lay down and let Jiyun ride on top of me.
I felt a bit heavy and hard because of Jiyun Yi’s weight, but I held back and asked Jiyun to shake her waist, and Jiyun quickly shook her waist.
Shaking faster than she thought, Jiyun tightened her cunt and focused on her sex as she let out a heavy breath.
Ji-yoon said it was difficult and asked me to do it, but I asked for a little more, and Ji-yoon continued to shake her waist.
After shaking her waist continuously for 10 minutes, Jiyoon was covered in sweat as if taking a shower with sweat.
Then, as I fucked her cock, I tilted her upper body and pushed out her lips to Ji-yoon, asking her to kiss me.
I had to kiss in a position like a sit-up, and Ji-yoon kept raising her upper body to kiss me.
Lesting Jiyoon suspect, I approached and kissed her, then fucked her cock.
Then he made Jiyoon lie face down, then he fucked her cock and kissed her sideways, turning around Jiyoon and kissing her, twisting her side to kiss her.
I had sex so that I could exercise with Ji-yoon while having sex, and Ji-yoon fortunately followed suit.
After putting Jiyoon on her stomach, I stood up, grabbed Jiyunyi by the legs, lifted her up, and fucked her cock.
Jiyoon had her legs raised high behind her, and she propped up on her bed with her arms to keep from falling, and the posture naturally gave strength to her stomach.
In that state, I quickly drove her cock, and Jiyoon struggled as her whole body trembled.
But Ji-yoon loved me, so she endured sex, and I ejaculated on Ji-yoon’s chest.
Jiyoon and I were sweating profusely, and her bed was all wet with sweat.
And Ji-yoon and I washed up and came out, and Ji-yoon’s face, sweating profusely, was lively and white.
Jiyoon, who was looking in the mirror, had been staring for a long time at the vitality and immaculate skin she had never seen before, and then she came to me and talked.
“Oppa, if I lose weight… Will I become prettier?”
“You’re pretty enough now, but you’ll get even prettier! Would men line up to confess?”
“All I need is oppa, oppa, do you think it’s good for me to lose weight? Tell me honestly”
“Um… Wouldn’t it be better for Ji-yoon to lose her health? Her brother will love Ji-yoon even if she wants to stay as she is now.”
Jiyoon pondered for a while before she spoke.
“Brother, I’ll lose weight. I’ll lose weight for you too.”
So Jiyoon decided to go on a diet.
I was happy with Jiyoon’s heart, and decided to help.
And from that day on, we started a diet.
Aka sex diet.
It is a way to lose weight with only sex while adjusting your diet.
Since sex is a full-body workout, you can do a lot of exercise in a short time, and after having sex, your appetite is gone, so it’s a perfect diet method.
That’s how Jiyoon started to thoroughly control her diet, avoiding greasy food, cutting off bread, and starting to lose weight just by eating one meal.
I managed my diet by cutting out late-night snacks, eating a Korean-oriented diet, and eating half a bowl of rice each.
And having sex with me every day, sweating a lot and making my posture similar to exercise, it was hard to learn, but I persevered.
In just four months, Ji-yoon, who weighed more than 95 kg, lost 20 kg to 75 kg.
As she lost weight, she gradually gained more confidence and became more diligent about dieting.
When she was losing weight and had sex, Jiyoon took care of her difficult posture and did it, and thanks to that, I naturally took care of my body.
“Oppa, if I lose weight, go out with me.. I want to live with you for the rest of my life..”
“I still have Jiyoon as my boyfriend, right? She will live with me for the rest of my life.”
“I love you brother”
I hugged Jiyoon, kissed her, and had sex.
A year passed like that, and Jiyoon’s weight went from over 95kg to 60kg.
She now went out and jogged, had a home squad at home, and exercised while having sex.
After another 3 months, Jiyoon has lost 52 kg, and she has already exceeded her goal weight.
Jiyoon was an unscratched lottery ticket, and she had a prettier face than I thought.
She became very beautiful to the point of being called a celebrity, and her body was also the best.
“Brother.. I’m pretty now..?”
“I’ve never been pretty, because in my eyes you’ve always been pretty and cute”
I took Jiyoon to a nice pool villa to commemorate her diet success, and we had sex there.
After entering the pool, I held Jiyoon and talked.
“Now I’m worried about my brother, that Ji-yoon might leave him and meet another man.”
“What are you talking about.. I still love you oppa.. I will continue to do so and I will love you for the rest of my life.. Oppa don’t leave me..”
I grabbed Jiyoon’s chest and kissed her.
Jiyoon’s breasts have become G-cup, and her slender figure has become busty.
In the pool, I grabbed Jiyoon’s breasts and kneaded and kissed her, and Jiyoon grabbed my cock and rocked it while kissing me.
Jiyoon fondled her cunt with her fingers, inserting her cock into her cunt.
“Jiyun-ah, I’ll pack it inside today”
“Yeah, wrap it inside.. I’m going to get pregnant so my brother can’t escape”
I grabbed Jiyoon’s breasts and fucked her cock, and Jiyoon let out a moan and hammered her cock into her water.
“Ahhhhh.. Uhhhhh”
Jiyoon made her moan with her cute voice, and I was excited by her moaning, so I fucked my cock even faster.
Maybe it’s because we had sex in the water, so I got stronger than usual, and I got more excited.
I turned Jiyoon forward and lifted her legs and fucked her cock, and Jiyoon grabbed my neck and stuck her cock into her water as she floated.
Then I kissed Jiyoon and fucked her cock, Jiyoon making her moan loudly with excitement.
“Haha.. Oppa.. Good.. Looks like it will be cheap.. Huh.. Haaang.. Haaang..”
Then, he lowered Jiyoon’s legs and drove her cock while she was standing.
Ji-yoon also went away feeling the climax, I kissed her with my cock in, and Ji-yoon took out her cock and went into the water to suck my cock.
After sex, we left the pool and had sex again while washing up.
And for three days and two nights, we had sex non-stop, and a month later, Ji-yoon got pregnant.
“Brother, I can’t run away anymore. I’m pregnant.”
“Where am I going to leave such a pretty girl, I’ll live with you for the rest of my life”
So we told our parents the truth, and we were kicked out.
But we live undeterred.
As a couple.
