My Stepsister in Kyoto 312 Secret Sugar Daddy (Extra) (Patreon)

This happened before the National Concert Band Competition, and this happened at Kumiko's. 

Kumiko had always thought that it was impossible for her to fall for this bastard, but she knew that the moment they met each other, their fate was already intertwined and somehow one into another; she let him sleep with her, taking her virginity, which she thought to give to someone she loved the most. 

Yet, even so, she didn't feel regret, and it was so enjoyable that she wanted to do it more, but if there was something that she felt speechless the most, it was the fact that she wasn't alone. 

When she thought about what was happening, she realized what kind of a pervy girl she was. 

Moreover, once again, she didn't regret her decision this decision of hers and fell into a depravity where her body could only be satisfied by him. Even her childhood friend, who held a feeling toward her, Shuuichi Tsukamoto, was forgotten by her.

While Shuuichi didn't seem to give up on her, she couldn't see him as someone who could hold her body. At the same time, because her body had been shaped into Mizuto's shape, it was impossible for her to accept Shuuichi. 

Still, whether it was due to Mizuto, whether it was studying, learning a euphonium, or even her beauty, somehow all of them became even better after she was held by him. 

Was it the effect of his semen?

Kumiko thought so since she knew that all of those who drank his semen had pristine and rosy skin. There was no acne, it was all moist, and everything was perfect. Even her mother, older sister, and friends were so jealous of her, asking what kind of beauty product she used, but how could she tell them that she was drinking her lover's semen? 

Or let this lover of her cum in her face, staining her face, hair, mouth, and naked body with his dirty semen? 

Frankly, she was at a loss in the beginning, but as they grew closer and he held her longer, she even let him hold her together with some members of the concert band club that had been held by him, such as Mizore, Reina, or Asuka. 

Whether it was Kumiko or the others were speechless at first by how vile Mizuto was, but then again, the lust clouded their heads, and they just happily accepted being pounded by him. 

At the same time, Kumiko also had to say that Mizuto was reliable as he had helped her to solve her family's problem.

Before the National concert band competition, there was a huge problem in her family, which was caused by her older sister. 

Kumiko's older sister was someone that Kumiko had looked up to ever since her childhood, and she often followed her, whether it was the school her older sister studied or learning a musical instrument. 

While Kumiko might be embarrassed to admit it, her older sister held an important position and became an example to her. 

However, during almost her last year of university, this older sister of hers suddenly told her and her family that she wanted to stop being a university student. Her older sister had been studying at the university for a long time and suddenly told them that she wished to quit chasing after her dream of becoming a beautician. 

When she said so, naturally, whether it was Kumiko and their parents couldn't accept it, especially when they had spent a lot of money to let her study. It was impossible for them to accept such a sudden decision. Moreover, if she wished to become a beautician, then why didn't she say it before? 

Still, her older sister was also stubborn, saying that she had been a good girl and followed her parents' expectations, whether it was to stop practicing the musical instrument or enter a university. 

If there was something that made her do so, it was because she watched Kumiko, who could achieve and did something that she had always wanted to do, especially after Kumiko's school gained the gold for the prefecture and region level of the concert band club and then moved forward toward the national level for the concert club. 

Kumiko wondered what she should do and as a high school student, there wasn't anything she could do except just wonder what her parents would do and how stubborn her older sister was. 

While crying, she told this problem to Mizuto, and he told her what she wanted her older sister to do. 

If possible, she wanted her parents and her older sister to be happy, and the only way for that was to let her older sister become a beautician, so he did and helped her older sister take a school as a beautician in Tokyo. 

Everything happened so fast that she couldn't react, but she knew that she had to repay him, and she had to repay him well~!

Still, Mizuto knew that all the glory and beautiful things about a beautician could only be felt by a few people. One percent among the 99%, or even less since reality, being a beautician was a hard job, and many had a salary less than average. Most of them were even being bullied by the seniors, worked for a long time, and then studied to hone their skills after work, which made this even more difficult. 

However, as Kumiko wished to help her older sister, then that's it since it was something easy to do for him, especially when he also started to reach his hands at the media industry.

Nevertheless, while Kumiko decided to repay Mizuto well, her older sister, Mamiko Oumae, who returned to Kyoto from Tokyo, naturally went to visit Kumiko since she was dumbfounded by everything that was prepared by her little sister. 

"...you want to repay him too?" Kumiko asked weirdly at her older sister. 

"Um, can I?" Mamiko asked curiously. If there was a reason why Kumiko could prepare all of this for her, it was all because Kumiko was taken care of by someone. Frankly, in Tokyo, she was crying when she thought that her little sister used her body to comfort an old man as old as their father, to help her study as a beautician in Tokyo. 

Yes, Mamiko had always thought that Kumiko could get everything all due to a sugar daddy and her little sister had become a sugar baby. 

Kumiko didn't know that and only thought that Mizuto would be happy if her older sister joined her, but she also felt it was complex somehow. "Are you sure?" 

"Yes!" Mamiko nodded with her naive expression, thinking that she was going to sacrifice herself for her little sister. There was no need for her little sister to sleep with someone she didn't love any longer and Kumiko should pursue her love. 

"Well... if you say so..." 

Nevertheless, Kumiko didn't mind since Mizuto had done her with other women, and frankly, she would be lying about how lewd her older sister's expression was when she was held by him. 

The older sister thought that she had to help her little sister, and the little sister thought to let her boyfriend, Mizuto, enjoy the threesome with her older sister. 

While their purpose was different, their goal was similar to each other. 

As for Mizuto? 

Well, he thought that it might be a good experience for him in the future since it would be his first time sleeping with two sisters at the same time. 

Yet, regardless of their beginning, in the end, the three of them were happy.