My Little Sister Is the Best F*p Material

Volume 1 Chapter 14: Convenient Misconceptions

My little sister is too sexy.

A night had passed since the shopping mall incident, and I was lying in bed, struggling with my rock-hard penis.

Since then, I had been telling Miyu things like, “Yamamoto-san was sexy,” and “Yamamoto-san’s breasts were amazing,” to make it seem like my mind was healthy. In reality, it was a false advertisement that would make even a crooked lawyer blush.

What was making my member hard was Miyu’s breasts. Even though it was an accident, I had ejaculated on Miyu’s breasts in public.

I imagined Miyu, in that hot weather, riding the train home while being conscious of the smell of my cum on her. Or maybe she had gone to the bathroom beforehand and wiped it off thoroughly. Just thinking about Miyu in that situation made my testicles start producing sperm urgently, and I wanted to ejaculate immediately.

I wanted to masturbate. But I couldn’t get off with anyone other than Miyu. Even though Yamamoto-san had tried so hard, even going naked, in the end, because of what happened with Miyu, my body had become unable to get aroused by anyone but her.

“Onii-chan. Are you awake?”

There was a clear knock, and the sound of “kon kon” rolled in. I was already naked from the waist down, completely exposing my penis. If the door was opened, they would find out that I was about to masturbate.

“I’m awake. But I’m sleeping.”

I gave an accurate description of the situation, and Miyu slowly opened the door and checked inside.

“Good morning?”

Miyu greeted me with a tilt of her head. It was probably a good morning for my erect penis.

“Good morning.”

I replied with that meaning. Miyu came inside without hesitation. It’s not like I could say anything now, but a sister who enters her brother’s room without hesitation while he’s masturbating… What’s up with that?

“I want to take a photo and recruit a girlfriend for you.”

Miyu, as if it was natural, came in wearing a digital single-lens reflex camera around her neck. I know, dear little sister. I won’t be surprised anymore.

“How do you want me to take the photo?”

“Let’s start with this one.”

“No, no, no.”

I was talking casually, but of course, I was naked from the waist down and erect. Soon, just having a normal conversation with Miyu was going to make me horny.

“First, I want to cum.”

“Okay.”

Miyu sat in front of my bed and started fiddling with the camera.

Normally, if a brother says he’s going to masturbate, the sister would leave the room, right? If they were a normal brother and sister, they wouldn’t even declare to each other that they’re going to masturbate in the first place.

Miyu thought my masturbation material was Yamamoto-san. I also wanted it to be. But I couldn’t.

No matter what kind of erotic fantasy I had, in the end, it was always dominated by Miyu’s breasts. The reason I wanted to get a girlfriend was so that I wouldn’t use Miyu as my masturbation material, but to be honest, I didn’t think I could forget about Miyu just by losing my virginity.

I rubbed my penis while glancing at Miyu. Miyu, wearing a slightly oversized blouse, didn’t have her chest shape as clearly defined as yesterday. But because of that, the area of skin color that could be seen through the gap in her armpit had increased.

Small body, soft flesh that was not suitable for her age. It was either muscle that wasn’t tensed or fat that was left intentionally.

Miyu knew very well what kind of body looked ideal. It was as if she was creating an avatar by projecting herself and looking down on it. She maintained a sophisticated style.

I could ejaculate at any time towards my sister. Even if I was openly masturbating and moaning with excitement, this sister of mine wouldn’t care. If I told her I was going to cum, she would come and drink it, and if I told her to go and receive it, she would. Of course, she would become my masturbation material.

“Umm… Miyu…”

I moved my hand faster, and my penis became even harder, and my testicles rose. Like solidifying a catapult and loading a bullet, the sensation of ejaculation slowly spread, and the preparations for firing were steadily progressing.

“About to cum?”

Miyu, who was looking at the camera data, turned to me. Even this kind of interaction had become a part of Miyu’s daily life. Her naturally sexy appearance made my twisted sexual desire explode.

“I’m gonna cum… So come here.”

I turned sideways on the edge of the bed, and Miyu, who came crawling, opened her mouth. This sister of mine was waiting on all fours, I continued to stimulate my genitals without saying a word, and left everything after ejaculation to Miyu.

“Miyu… Ahh… I’m cumming…!!”

The moment my semen was expelled, Miyu brought her face close enough for my glans to enter her mouth. Seeing that scene from the side gave me the illusion that I was getting a blowjob. Miyu, without saying a word, accepted my semen, which increased in volume as my excitement grew.

Then, she raised her head and gulped it down in one breath.

“…Hey. Miyu.”

“Hmm, unn. What is it?”

Miyu was swallowing saliva several times to get rid of the lump in her throat.

“I mean, it’s not like I have any particular intentions, but… is my semen not bad-tasting?”

“It’s actually bad.”

Miyu answered immediately and moved her tongue vigorously in her mouth. Well, of course. It’s bitter and fishy. It’s not something that’s supposed to be drunk in the first place.

“But you don’t mind, do you?”

“Yeah.”

“Why?”

“I don’t know?”

Miyu tilted her head. She was drinking it even though it tasted bad. Even more so, why?

“There’s something I’ve been wondering about since the beginning.”

“What is it?”

“Have you ever thought about drinking someone else’s?”

I mean, she can drink my semen, her real brother’s, so calmly. Even if she was helping out some guys in her class, it wouldn’t be strange at all. I know it’s extremely rude, but with a sister as cute as her, there’s no way no one would hit on her.

“Mmm. You’re asking me something that’s hard to answer.”

Miyu frowned and started thinking. Wait, hold on. I thought she would just say “no” immediately.

“I think what you want to know is… whether I can allow someone other than you to make me drink their semen, right?”

Huh? The nuance is slightly different, but the meaning is the same, right? Why did you rephrase it like that?

“I plead the fifth.”

“Why!?”

“I plead the fifth.”

Miyu closed her eyes and turned her face away. This attitude… I’ve seen it somewhere before. Oh, that’s right. It’s like the response of a tsundere heroine when she’s misunderstood by the delusional protagonist. But she’s not dere.

“I see. Sorry for asking such a weird question.”

“Let’s take the photo. Come on, change your clothes, change your clothes.”

I changed my clothes as Miyu told me to, and fixed my hair. I had Miyu use her makeup tools to brighten and beautify my skin… I didn’t feel like a princess, but.

I went downstairs and faced the full-length mirror in the entrance. Miyu was standing next to me, wearing glasses and holding a pointer.

“What do you think?”

Miyu tapped her palms with the pointer.

It’s okay, lil sister. I have no doubts about anything.

“It’s flashy, I guess.”

“Okay. Let’s try a serious face while facing your study desk.”

“Are you going for a gap?”

“Excellent!”

Miyu climbed the stairs, swinging her somewhat large butt. Small body, big breasts. Younger than me, but a teacher. I was already overwhelmed by the gap.

“Okay, I’ll take the picture.”

I sat in a chair with my reference book in front of me. The sound of the shutter filled the room. I also have experience as a cameraman, so I wanted to take pictures of Miyu more than being photographed myself. And I wanted to make it my smartphone wallpaper.

“I think that’s enough. Then let’s have breakfast.”

Miyu put her glasses and pointer on the desk and kept the camera hanging around her neck. She opened the door and led me.

“By the way, it’s my turn to cook this morning, right? Sorry about that.”

“Think about your little sister’s stomach before doing sexy things.”

“Sorry.”

I’m sorry for always getting my masturbation material from you. What a silly thought. I went down to the living room and rummaged through the refrigerator.

“Ingredients… We have a lot of onions left.”

“Mom, Dad, and I all bought them on sale on the same day.”

“Why didn’t you guys communicate with each other…?”

My parents don’t know much about the situation at home. They’re hands-off, and they’ve never been home much since the old days, but it’s not like we don’t get along. In fact, for someone my age, it’s quite good.

“I guess I’ll just mix some eggs and meat with it and get rid of it.”

A makeshift oyakodonburi.. It’s heavy for breakfast, but. I lined up the ingredients next to the sink, and from the counter-style kitchen of our house, Miyu peeked out.

“We’re out of mirin.”

“That’s what you should’ve bought!”

Damn it. I’ll use sukiyaki sauce to cover it up. As I was measuring it angrily, I heard the sound of pashapasha from outside. Miyu was busy taking pictures from below, or taking pictures of my back.

“By the way, where are Mom and Dad?”

“They’re at work.”

“They’ve finally started working even on their days off… What a tough job.”

“Papa is going to take a long vacation, so he’s saving up and adjusting his schedule for the trip.”

According to Miyu’s information, the couple will go abroad around the time the summer vacation period starts. It’s not unusual for my parents to suddenly go somewhere, but going abroad is quite bold.

And after a while, the shutter sound stopped. Miyu was sending the data by wirelessly communicating the camera and smartphone.

“Are you done taking pictures?”

“I have enough. I’ll select the good ones, so please take care of the meal.”

“Okay.”

I put the rice I had wrapped in plastic wrap in the microwave, sliced the large amount of onions thinly, rolled the meat that would go well with the rice, and mixed in the eggs.

I seasoned it to my liking. Surprisingly, I’ve never had Miyu complain about any dish I’ve made that I thought was delicious. Miyu’s cooking is always delicious, and since our family’s taste is similar, it’s easy to make.

I served the food on a plate and set it on the table. Miyu put the camera on the shelf behind her and took the chopsticks that were offered to her, and put her hands together. I sat across from Miyu.

“Itadakimasu.”

Mogu mogu. Once we started eating, no one spoke. Me and Miyu, no matter which combination of family members we were having dinner with, were uncomfortably silent during meals.

I started having daily conversations with Miyu after we started saying good morning and good night to each other. It was a reminder of how important greetings are.

Still, there was no conversation during mealtimes. It’s not like we’ve been told not to talk during meals. Rather, my parents would take the initiative and bring up topics. That’s because if they didn’t, I, who still wasn’t used to talking to anyone but Miyu, and Miyu, who didn’t talk unless necessary, wouldn’t open our mouths.

About five minutes after we started eating, there was still no conversation. It was customary, so there was no actual awkwardness, but since I don’t get to spend time with Miyu all the time, I wanted to talk while I had the chance.

“Miyu…”

I spoke out. When our eyes met, I had no choice but to continue.

“What are you going to do during summer vacation?”

I had spent most of my time, other than when I was working as a short-term part-time worker, on games and events. Every time my parents went out, I was asked to do housework. I felt a sense of fulfillment from having a job.

There I noticed that every year, Miyu would disappear from home for a certain period of time. On the other hand, except for those outings, she was almost always at home. I often made meals for the two of us during summer vacation, and after eating, Miyu would retreat to her room just like me.

“As usual.”

She answered quietly.

Another silence fell.

I can’t do this. How am I going to continue the conversation?

“Sometimes you go on trips, right? I’ve never seen you packing.”

One of Miyu’s mysteries. Her equipment when she goes on a trip is unusually light.

“I’ve been invited this year too. Haruka prepared the clothes for me, so I don’t have to bring any.”

Haruka… That ultra-beautiful girl with bulging eyes? I had really forgotten about her since Miyu told me to forget about her. Does that girl prepare other people’s clothes? She goes to an ordinary school, but is she some kind of rich girl or something?

“Where do you go?”

“Various places.”

“Like?”

“Islands and such.”

“What are you doing in such a place…?”

“I can’t tell you that.”

Miyu is also quite tight-lipped. The only thing I found out was that Haruka is rich. If they’re traveling alone, I can kind of guess the reason why she can’t tell me… But what kind of relationship do Miyu and Haruka have?

“Are you going to work as an event staff again this year?”

“That’s the plan. It’s too much trouble to go for an interview at a new place. I also get a discount ticket.”

“The hourly wage is also good, right? I’m envious that you get paid just for being confined.”

“And sometimes you can peek at the live performances of famous artists. To be honest, I don’t feel like doing any other part-time job.”

“And that’s how you become a full-fledged NEET…”

“I’m just staying home a little longer than other people!”

It’s the idea that students have to work that’s wrong. I’m not in the wrong.

“You should’ve worked instead of playing erotic games.”

“If you prioritize money over your passion, you won’t have anything left.”

My passion has changed now, but.

Yeah.

What did it change to?

“Passion, huh.”

Miyu skillfully picked up some onions and eggs with her chopsticks and put them on her rice.

This girl seems to be having a good time in life, huh. She’s got a good face, a good figure, and a lot of friends. And she takes care of me, her brother. I wonder if I’ve become a little better. It’s only been a week since my image change, but there has been a big improvement.

“I never thought I’d be able to talk to Miyu like this. It’s fun to talk to you. It’s enjoyable.”

I tried to express my thoughts while enduring the itching in the back of my throat.

“Is that so?”

Miyu responded coldly. It was her usual attitude, but it was a little disappointing considering my effort.

“No, I mean… I don’t think I’m such a bad guy anymore. I think I’ve changed a lot.”

A month ago, I was living a life of just masturbating and sleeping. My days of masturbating are still ongoing, but my communication skills have definitely improved. At school, I can talk to Onozaki and Yamamoto-san without any problems.

“Hmm.”

Miyu was more interested in pulling off the leftover chicken with her chopsticks than listening to my story. This sister doesn’t show much interest in anything other than clothes and her friends.

“So you still think I’m a boring guy.”

I thought we were talking well, but maybe Miyu didn’t think so.

“I told you before, but you’re really stubborn about your beliefs, aren’t you?”

The words of ice pierced my heart. This sister doesn’t know delicacy. If our positions were reversed, she would be criticized by society.

“Sorry about being a shut-in.”

I didn’t want to become the kind of delusional otaku that is ridiculed on the internet. I thought I was on the side that criticized them. It was a shallow misconception after all.

“You seem to think that you fit the bad otaku that society talks about. You’re just trying to fit yourself into that bad reputation because you lack confidence. It’s fine to be self-deprecating, but I think it’s wrong to take it out on others.”

It was a mental fatal blow. Miyu had hidden her main blade. What she said was reasonable, but has she ever considered things from the perspective of an unpopular guy?

“I’m sorry. But you didn’t think highly of me either, did you?”

If she really found me attractive, she should say “I love my brother” more often.

“Me? I don’t really hate you, Onii-chan.”

Miyu took another bite of her rice.

“What, really?”

“Yeah. I don’t think that’s changed, and it probably won’t.”

No, you’ve changed, though. It’s obvious that your approach to me is different now. Don’t say such strange things. Listen, I’m not at all surprised by my sister’s unexpected answer.

“I don’t know about now, but didn’t you hate me before?”

“Why?”

“You never talked to me.”

“I think you’re the same, Onii-chan.”

If I think about it, that’s true. I didn’t try to talk to her either. I didn’t really hate Miyu though.

“But look, unlike me, you have a lot of friends, right? I’m just a shut-in. It’s not like you’re unable to speak.”

I said what I was thinking, even though I was still confused.

“I’m like this at school too, you know?”

“But… when you’re talked to, don’t you talk a lot…?”

I felt a strong sense of discomfort with the words I had just spoken. Talking when talked to… That’s me, isn’t it?

“You talk a lot when I talk to you too, and you can talk to Yamamoto-san normally, right?”

I was reminded of that by Miyu, and I lost my words.

What was that stupid misconception?

“I see. Sorry, somehow. I thought you hated me all this time.”

“I hated you huh… Hmm…”

Miyu stopped eating and started thinking. It was an honest feeling, but maybe I shouldn’t have said it.

“In our family, our parents have always come home late, right?”

Miyu suddenly spoke, and I nodded and blinked in agreement.

“And so I had Onii-chan buy groceries and assemble bookshelves for me. Well, I guess it was because Papa and Mama told me to.”

It was a story from when we were still small. As Miyu said, my parents often sent me out as a messenger. They also made me do various things because I was a boy and their daughter was cute.

“Even now, you’re making meals for me like this.”

Miyu gathered the remaining egg on her plate with her chopsticks.

“You’re little sister is quite grateful to you, you know?”

Miyu grabbed the egg in one lump, paused for a moment, and then put it in her mouth.

“Oh, you…!”

I pointed at Miyu, flustered, not caring that I had kicked the chair, “Gatan.”

“You, in a situation like this, stop saying such things…”!

I know it’s an overreaction. Still, I wanted to somehow shake off that fact from my head.

The moment I heard Miyu’s words of gratitude, my heart started beating strangely, and I wanted to escape from the unknown fear that arose from it.

“Hah. Damn it. Onii-chan is falling in love with his little sister again.”

Miyu covered her mouth with one hand.

“It’s really annoying that I can’t deny it.”