My Little Sister Is the Best F*p Material

Volume 1 Chapter 06: Using My Sister’s Friend as Masturbation Material Part 1

“Release it.”

Kneeling in front of my penis, Miyu said those words.

Miyu had decided to command me to release my sexual desire under her supervision, as she couldn’t bear the thought of me using her friend Haruka as masturbation material. It’s quite bold of her to do so with her friend right next door.

“If you say so, Miyu.”

I don’t do anything that Miyu truly hates. In this case, I also knew that it was completely unacceptable for me to use her friend to vent. When I agreed, Miyu seemed relieved and placed her hands on her knees, which were now in a seated position.

“Alright.”

That was all she said, and then she fell silent. It seemed it was now my turn to masturbate.

However, with my sister kneeling in front of me, looking intently at my penis, my hand movements slowed down. It’s hard to concentrate when she’s observing my masturbation so seriously. I tried to slide my hand with force, but it was difficult to get aroused in this situation.

I wanted some stimulation. Since it was Miyu’s request, I didn’t ask her to show me her breasts, but if she could at least sit like a girl and show me a glimpse of her thighs, I’d get excited.

Miyu remained silent. She just blinked repeatedly.

The silence in my room was so profound that even the sound of birds chirping seemed to reach my ears. Even the sound of sweat dripping was so loud that it was deafening.

“—Haruka, if you use Miyu’s stuff without permission, she’ll get mad at you.”

“I won’t use it. I’ll just look at it.”

“I don’t know about that. I might tell Miyu later.”

“Miyu won’t get mad at me no matter what I do. Today is a study session to scold you, Yuka, don’t forget that.”

I could hear the girls playing through the wall. As far as I knew, there was only one girl there, Haruka, but it was clear from the conversation coming from next door that there were two of them.

“Were there others here?”

“Just Haruka and one other person. A girl named Yuka… Are you about to cum?”

In response to Miyu’s question, I nodded. She probably didn’t want to keep her friend waiting, so she wanted to hurry up. Usually, I could cum in seconds, but with all the new stimuli, my head was spinning.

“It might be difficult right away.”

“I see. Hmm…”

Miyu placed her hand to her mouth and thought for a few moments.

“Just wait a moment.”

Suddenly, Miyu stood up and left my room.

I was standing there naked from the waist down. A sense of emptiness enveloped my entire body.

Sitting on the bed might be okay. As I was thinking that, I heard a voice from the next room again.

“Hey, Miyu! Listen! Haruka was using your stuff without permission!”

The voice sounded energetic. Yuka must be a bright and adorable girl.

The influence of knowing Haruka’s appearance, and the fact that she’s Miyu’s friend, made my brain decide that she must be cute too.

“I wasn’t using it. I was just touching it.”

“It’s the same thing! Hey, is that okay? Don’t you need to scold Haruka?”

I had no idea what they were talking about. I pressed my ear against the wall, but it was stuck at the bottom. It seems that my instincts are completely separate from my thoughts, even though it’s not an erotic conversation.

I’m very curious about how Miyu talks to others. Even that rude sister of mine must be full of smiles outside the house.

“Let’s just cancel the study session… Wait, Hyah! What are you doing, Miyu!? Ahh!”

There was a sound of something falling on the floor, and someone fell near the wall.

“Just be quiet.”

“You idiot! I can’t just stay still while you take off my clothes! The buttons are going to break…”

There was a sound of the futon rubbing against the wall.

“I didn’t expect you to go this far! Don’t take off my bra! Please don’t take off my bra!”

“Miyu, I didn’t expect you to do something like this either.”

I didn’t know the voices of the other two besides Miyu. But from their way of speaking and the tone of their voices, I had a general idea. It seems that Miyu is doing something inappropriate to Yuka.

Leaving me waiting, taking away her friend’s bra… What’s going on? Is she giving it to me? No, no, no. I was just scolded for using her friend as masturbation material a moment ago.

“Just lift up your camisole yourself. Stay still.”

“Ugh… This punishment is too cruel…”

I could hear the sound of a shutter clicking. It seems they’re taking pictures. The subject is Yuka, who had her bra taken away… right?

I don’t know what Yuka did wrong, but how can she be so cruel to her friend? Or did she do something so bad that it can’t be forgiven, and that’s why Miyu’s being so harsh on her friend?

“—Sorry for the wait.”

Miyu returned to my room as if nothing had happened, holding her smartphone. My sister brought something incredible.

“Are you really going to show me that?”

“You’re quick. I’ll give it to you, so use it a lot.”

It was a response of a villain.

As Miyu operated her smartphone, it vibrated on my desk. The display showed a message: “One image has been sent.” On the dimly lit screen, there was an image of a girl wearing a disheveled uniform, and my heart skipped a beat. The spiral indicating the download in progress was rotating, and with each progress bar at the bottom, my urethra twitched.

“Wow…”

My hands were shaking.

The live photo of the girl in the next room took over my vision. With her cheeks flushed and her eyes averted, she was exposing her nipples by grabbing the hem of her camisole herself.

Her brown twin tails hung modestly from her shoulders, and from her undeveloped breasts, pink buds peeked out, contrasting with Miyu’s fully developed ones.

Yuka had a slender build with well-defined features. With eyes that slanted upwards like Miyu’s, her strong-willed face was distorted with shame. The slight blur caused by the forced shot only added to the realism.

“You don’t like it when your friends are used as masturbation material, do you?”

“There are various circumstances…”

Miyu looked down. It was a sign for me not to pursue the matter.

“Then, I won’t hold back…”

I focused on the screen and resumed masturbating. Regardless of the eroticism of the photo itself, the fact that this naked girl was in the next room made me feel guilty, and my scrotum tightened.

The breasts of a female student with her uniform half-undone. I thought I would only see such a sight in two dimensions, but now it was in my hands.

“No… This is… I can’t…”

Miyu, who sent me this photo, was watching me masturbate using her friend as masturbation material. It was a parade of impurity and vice that made my sense of ethics irrelevant.

Would these small breasts be soft to the touch? What kind of voice would this girl make if I touched and licked her chest, which she was hiding in shame? That’s not all. If I rubbed my penis against her white skin and coated the tip with my pre-ejaculate, how good would it feel?

Yuka’s skirt was disheveled, as if she had been forcibly pushed down. Even a strong-willed girl like her would probably moan loudly if I raped her. With her defiant eyes staring at me, her lower body would succumb to pleasure and seek my penis. That image came to my mind.

“I’m… Ahh… Ugh…”

I wanted to cum. I wanted to cum inside this girl in my mind and spill my semen all over her.

“I’ll drink it for you. Just release it.”

Miyu opened her mouth to cover my penis. That momentary visual information was the decisive stimulus for my penis.

“Haa… I’m cumming… Cumming…”

My blood flow intensified as I ejaculated, and my vision started to flicker. My muscles tightened, squeezing my penis, and the semen shot out like a water gun.

“Ahh… Miyu… I’ve cum…”

My penis, held by my right hand at the base, twitched upward. I think I ejaculated quite dramatically, but was Miyu able to swallow it all without spilling? If it got on her clothes, she might get angry again.

“Mmm… Ugh…?”

As I looked away from the screen to check on Miyu, she looked up at me with her mouth open, her eyes half-closed. She had half of my penis in her mouth. Of course, she didn’t let me touch her tongue or lips.

Since she didn’t hold my waist to avoid interrupting my fantasy, she must have judged that she couldn’t properly catch the semen unless she got close enough to fully enclose my glans in her mouth.

“Miyu, could you… just keep… doing that…”

“Mmm… Gulp… Phew. No. I won’t clean it up.”

Miyu swallowed my semen and immediately stopped talking. She stubbornly refuses to even lick my semen, let alone give me a blowjob.

What’s the difference between licking my semen and leaving it there, given that she went to such lengths? All I want is to be freed from the loneliness of wiping my own penis at the end.

“You feel refreshed now, don’t you? Then, Onii-chan you should thank your sister.”

“You’re right.”

I got a live masturbation material and even had my semen processed by her.

“So, this is an order from your sister. From now on, you must wear headphones. If I catch you eavesdropping, I’ll get angry.”

Miyu pointed to the headphones I use for erotic games.

“I won’t eavesdrop. But can I go to the first floor?”

“You can go if you move quickly.”

Miyu said it firmly and left my room.

At this point, I didn’t feel like putting on those headphones.

T/N: Don’t ask me anything… Even I didn’t expect that. I swear it will get better on the next few chaps, fluffy moments between the emotionless sister and her brother will come!