My Little Sister Is the Best F*p Material - Volume 3 Chapter 6: Little Sister's Sexy Temptation Hellish Ejaculation Management

Volume 3 Chapter 06: Little Sister’s Sexy Temptation, Hellish Ejaculation Management – “No Ejaculation for You, Onii-chan” Part 3

It was supposed to be the most calming place. Throughout its history, which stretched back to ancient times, this bathroom had been a sanctuary, bearing the weight of humanity’s peace. Yet, I had come to believe that this very bath was a place of danger.

“Miyu…”

Miyu sat on a chair, rinsing her shampooed hair. The way she gathered her long hair in front of her chest, lightly applying conditioner before rinsing it off, was sensual. It made me forget that she was my younger sister, and even that we were related by blood.

At least, my body had already forgotten that Miyu was my sister. It was clear from this reproductive organ, which was about to ejaculate into Miyu’s vagina, that my body had forgotten.

I had been asked by Miyu at some point, “Do you want to get me pregnant?” and I had denied it. In fact, I had never seriously considered having children with her. Although I had masturbated to Miyu many times, my ethics still avoided incest. In my thoughts, I denied having sex with my sister; however, my instincts were overpowering my rationality.

“I…!”

I stood up, leaning on the edge of the bathtub. I had to cool down my boiling head. It was not ethics but instincts that should deny the idea of having sex with my sister.

This very conflict was something that should not exist within me as an older brother, and even as a human being. Miyu’s safety was at risk with me around.

The bathroom was a dangerous place. Here, everyone was naked, in their natural state as living beings. Instincts were like fish in water. There was no way I could suppress my rationality.

“I’m going to get ou—”

Just as I was about to say that, Miyu stopped me from speaking.

“What’s wrong? Are you going to wash my body for me?”

Miyu tilted her head, soaking a sponge in body soap. Gush, gush, she made bubbles in the sponge, and looked at me with an expectant gaze. It was a devil’s whisper. Miyu, on behalf of the evil within me, was stirring up my instinct, which was soaked in sexual desire.

“Uh, eh…”

Doubts, confusion, and suspicions swirled in my mind, but Miyu’s enchanting body blew them all away.

“Yeah, I’ll… wash your back…”

I got out of the bathtub without hiding my erect penis and went behind Miyu.

Her fine-grained skin, which repelled water, captured my gaze. Of course, it was due to the daily care, but the beautiful white color of Miyu’s skin was also a result of her hikikomori lifestyle, which prevented her from being exposed to ultraviolet rays. This skin, which was close to its natural state, was different from the color reproduced by typical whitening cosmetics.

Despite her short stature, she had long legs that she was born with, and a well-built body, created by strong muscles. Miyu had told me, “If you want a girlfriend, you should work out,” so she must have trained herself to some extent. The two fruits that had grown abundantly were not just a result of her youth. From behind, I could clearly see which muscles supported Miyu’s good posture when she sat on a chair.

“Here, take the sponge. Don’t touch me with your hands, though.”

I swallowed my saliva, looking at Miyu’s black hair, dripping with water, and her bare skin, illuminated by the bathroom light. There was a thrill that I hadn’t felt when we were soaking in the bath together. To avoid losing that feeling, I used the sponge to clean Miyu’s body, without directly rubbing it, only using the friction of the bubbles.

In my mind, I thought, “Why am I doing this?” I had intended to escape, but I found myself following Miyu’s orders. It had nothing to do with gratitude or guilt. I simply couldn’t defy Miyu, no matter how hard I tried, and neither could I defy this sexual desire.

My head was spinning. If I reached out, I could touch her. Her warmth and softness would surely make me ejaculate just by hugging her. I had to endure these temptations, and I slid the sponge over Miyu’s arms, then her back, her waist, and her abdomen, and finally her thighs.

“What about… your breasts?”

“Just do it the same way.”

“But, you know, like, the valley between them, or the tip… Don’t you have those?”

The place where sweat accumulated the most on the chest was where the large mass of flesh was pushed aside, and it was a place that I couldn’t reach it without putting my hands inside, which she wouldn’t want as I had been warned not to touch her body.

“If I do this, can you do it then?”

Miyu used her hands to spread her breasts apart, creating a gap large enough for the sponge to fit in.

My penis twitched. I understood the desire to be sandwiched between them, but my little guy had to calm down. I didn’t have the luxury to indulge in such fantasies.

This was like a training. It was like the Zen path of emptying my mind. I went around Miyu from the right side and reached out to wash her chest. Carefully, I rubbed it only with the bubbles, without staring at her breasts, and without breathing heavily.

“Next, do my legs.”

Miyu stretched out her legs, pulled back her chair, and instructed me to turn around in front of her. I had tried not to look at her front, as I thought she would be embarrassed. Even though my back was so arched that it seemed to touch my stomach, Miyu didn’t seem to notice.

I applied bubbles to Miyu’s knees and calves. I also did it to the tips of her feet, which were stretched out like a ballerina’s. I felt like a slave. A subordinate who obeyed the queen’s every command. If she ordered me to lick her, I would gladly do it, like a dog.

I wanted to lick her. Between her fingers, the tips of her breasts, and her most important part, which was still wet enough to leave a stain on her panties.

“Ugh… M-Miyu! I’m… done…!”

I shook my head hard to chase away the impure thoughts. Miyu’s body was covered in bubbles. Her entire body was slippery, and I could ejaculate just by pressing my waist against any part of her. Looking at this body, I could only think of having sex with Miyu.

“Is it over? You usually don’t wash your butt or the insides of your thighs, do you?”

“I do, but…”

“Then it’s not over yet, is it?”

Miyu got up from the chair, leaned on the edge of the bathtub, and knelt on the floor, spreading her legs and leaning forward slightly. It was like she was in a crouching position, having raised her upper body from a four-legged stance. The graceful curve of her back. Her well-proportioned butt and legs. Miyu instructed me to go behind her again, and glared at me, telling me to hurry up.

In this position, I could kneel down and enter her from behind. If I grabbed Miyu’s waist tightly with both hands and inserted this penis, which had its veins popping out, I could ejaculate in large quantities without even three strokes.

“Hmm… haa…”

My heart was still pounding. My head was going blank.

“Miyu… c-can I… put it in…?”

My eyes, reflected in the mirror, were bloodshot.

You’re tempting me so much. Is that what you want? Do you want to have sex with your brother that badly?

I don’t mind. I don’t care what you do to me. It’s summer vacation from now on. My parents won’t be around. I can have sex with Miyu from morning till night every day. I want to have sex with my sister. I want to ejaculate inside this little sister of mine.

“Of course not.”

Miyu replied in a low voice. Then, at least, let me masturbate. Just ejaculating on Miyu’s back in this position would be so good that I would lose consciousness.

“Hurry up.”

Driven by Miyu’s urgency, my thoughts were in disarray, but my body obeyed the command, and I continued to wash Miyu’s body. From her inner thighs, to her butt, and then to the place between them, her genitals. I slipped my arm under her legs. I only touched her with the bubbles. I had to avoid stimulating her vagina too strongly. It was enough if it was clean after rinsing it with hot water. I also rubbed her anus with the bubbles, in a hazy state of consciousness. I had finished washing her. There was still plenty of Miyu’s honey left in her vagina. Miyu would just wash it away with the shower.

The hot water and bubbles flowed down Miyu’s body. The solution was full of Miyu’s essence. Before it flowed down the drain, while the hot water, which had just washed Miyu’s body, still contained her components, I could drink it. It should increase my semen more than maca or zinc.

My brain was dominated by such inhuman thoughts, and I could only watch the bubbles flowing away, helplessly. My desire and rationality were fighting each other, and that alone was already exhausting.

“Thank you.”

Miyu thanked me and entered the bath.

That’s it. I’ll get out. I’ll go back to my room and masturbate.

“Onii-chan, are you getting out already?”

Miyu asked me an incomprehensible question as I opened the bathroom door. She had intruded without permission, disturbed my bath, and even interfered with my ejaculation.

“I’ll get out first and relax in my room.”

I couldn’t let my masturbation be disturbed any further. I would dry my body, dry my hair, lie down on the bed, and indulge in this penis as much as I wanted.

I wanted to masturbate as soon as possible. I wanted to ejaculate as soon as possible. With that in mind, I left the changing room, closed the bathroom door, and reached out for the towel. At that moment, a sense of relief washed over me. My thinking ability was restored.

Was this really okay?

Miyu was calling me from the bath. That was the meaning of her question. Miyu was offering to join me in the bath. She was willing to spend time with me in the same space, naked. This was an opportunity that I would never get again once I stopped seeing her as my little sister. Why wasn’t I taking the reward right in front of me?

This could be a trap, of course. If I went back to the bath now, I would probably not be allowed to ejaculate again. But so what? Ejaculating would be the end of it. It would just be a relief, and that’s all. Nothing would be left. Was it worth prioritizing this over the bath with Miyu?

No. Absolutely not.

“My body was cold, so I’ll stay in after all.”

I had opened the bathroom door.

“I see.”

Miyu folded her knees and cleared the front, apparently inviting me to enter. I also curled up and got into the bath. Zabazaba, the hot water overflowed from the bathtub. It was a narrow space for two people.

“Um, can I ask you something?”

I was just following Miyu’s orders, but…

I knew it was not normal anymore.

“What?”

“You seem more proactive today. If it’s not my imagination…”

“Well, it’s probably not your imagination.”

Miyu answered, fixing her hair, which was tied up with a clip.

“Is there a reason for that?”

When I asked her, Miyu glared at me with an expression that looked like disdain.

“So, it is as I thought.”

Miyu’s response was vague. If I knew, that was fine, but she had no intention of telling me if I didn’t. Getting on her knees, getting her stained panties, and taking a bath together. What was the reason for all these rewards?

“Do you want more?”

My heart and penis reacted with a start to Miyu’s words. It was no longer surprising that Miyu could read my mind, but for her to say such a thing herself…

“You’re a worthless human being who has no doubts about being lustful towards your little sister.”

Under the surface of the water, a moving flesh-colored shape. Miyu’s foot was reaching out to my crotch.

“Ahh…”

The most important part of a man was being trampled on, as if it were nothing. My frenulum was being stepped on with a grinding motion, and I was trembling with joy.

“Miyu, don’t… ahh…”

My penis, which was already on the verge of exploding, was being kneaded by Miyu’s small foot. It was being squeezed with incredible strength, from the base to the head.

It was a rough way of stepping on me. It was not a foot movement intended to give me pleasure. It was an act of contempt and degradation. Yet, it was an exquisite sensation that made me unable to suppress my moans. I shouldn’t be a masochist, but I couldn’t help but feel joy when Miyu tormented me.

“Your body is so honest.”

Miyu’s arch of the foot moved away, and instead, the ball of her foot dug into my penis. Next, her toes touched me. She knocked my upward-facing penis to the side, pressed it down from above, and finally, she squeezed the shaft between her toes.

She opened her big toe and index toe wide, forming a single groove without any ridges or love juices, and tickled the underside of my glans. Miyu, who was small in stature, could only barely squeeze my fully erect penis with her toes, with only half the diameter fitting.

But that was enough.

It was enough to rub the frenulum of my penis with her toes.

“Ahhh…”

Miyu’s foot was stroking my penis. The pleasure it gave was clearly different from being stroked by a hand. In addition to the physical pleasure, the pleasure of being trampled made my body heat up.

“Haa, haa, aaaah… Miyu, it feels so good… aaaah… ahh, aah!”

“You’re moaning too much. You sound like a girl. Your voice is echoing so much that it might reach the living room.”

While scolding me, Miyu didn’t stop moving her foot. It didn’t matter who heard it. As long as it felt good, I didn’t care.

“It’s a good thing mama and papa aren’t here.”

Miyu’s face, with a smile of pleasure hidden behind her expressionless facade, was alluring.

The moment I saw that face, I realized.

I would probably never ejaculate with anyone but Miyu for the rest of my life.

Whether I ejaculated or not, it would be up to Miyu’s discretion.

“M-Miyu, I’m… gonna cum…!”

Miyu quickly removed her foot as my penis pulsated with contractions.

“Ahh! Miyu, don’t… I’m…!”

It was impossible to hold back my ejaculation. I wanted to ejaculate. I couldn’t hold it back unless I ejaculated inside Miyu’s body.

“Miyu…”

My body involuntarily covered Miyu. I held one of her legs and pushed the other one aside with my knee. I forced her legs apart and thrust my penis, which was about to ejaculate, into her secret place.

“Onii-chan, no.”

Miyu calmly admonished me.

I knew it was wrong. Moreover, she was my real sister. A younger girl who had no experience with men. There was no way I could be allowed to ejaculate inside her.

“Miyu… I’m… gonna put it in… I’m gonna put it in…”

I pushed my penis into Miyu’s cleft.

The glans, which was swollen and sensitive, sensed something.

Even in the bath, it was now undeniable that it was moist.

“You’re… wet…?”

Even though I had just washed her, Miyu’s vagina was still filled with love juices.

“You can’t put it in.”

“Miyu, I understand. You wanted it, didn’t you?”

“Onii-chan, listen.”

“You’re so wet. You were excited by touching my thing, weren’t you?”

Otherwise, this situation couldn’t be explained. Miyu wanted to be assaulted. She had tempted me so much, and because she couldn’t express herself, she had driven my rationality to its limits and directed the situation so that she would be raped.

“Onii-chan.”

Those words reached my ears clearly.

Miyu’s face was vividly reflected.

She wasn’t crying or angry. Her expression was the same as it had been a moment ago.

Miyu and I stared at each other, our bodies only touching at the entrance.

“Today is my fertile period.”

Miyu gently placed her hand on my penis.

“Your semen is so thick. I think it will fertilize me with just one ejaculation.”

Her hand moved down my shaft, and Miyu gently stroked her lower abdomen.

“I… don’t want to get pregnant yet.”

Miyu didn’t resist violently. She knew that I wouldn’t do anything, even without her struggling. Our hearts were not as close as our naked bodies suggested. In the room, where only our rough breathing echoed, I withdrew my penis, which was about to enter Miyu’s cleft.

“Mmm, thank you.”

Miyu, who had been the victim of my outrageous behavior, spoke to me with words that were out of place. She curled up, hugging her knees.

I couldn’t do it. I couldn’t put it in, and I couldn’t even wish for it. When Miyu told me it was her fertile period, the impulse that arose in my heart was to ejaculate inside her.

Even if my partner was my lover, I would hesitate to insert it if I was told there was a risk of pregnancy. I had never felt the desire to impregnate anyone else, yet I wanted to ejaculate inside my sister on her fertile day. Why did I have such a thought?

“Let’s get out of the bath.”

I wanted to stay in the bath and release my tension, but Miyu, who had just ordered me to dry my hair after all that had happened, ultimately prevented me from defying her until the very end.

“Haa…”

I lay on my back on the bed, and the ceiling seemed far away.

I wanted to masturbate, but I didn’t want to masturbate. Such contradictory desires were swirling within me. I didn’t want to calm this penis, which had curved up to my stomach, with just ordinary masturbation.

I wanted her to drink it. If I could have my wish, I would want her to suck it. If I ejaculated while she was giving me a blowjob, I would produce so much semen that it wouldn’t fit in her mouth. I wanted to watch as she choked on it, forcing it down her throat.

My desires were growing stronger. Ordinary masturbation wouldn’t do. At least I should use an onahole. I hadn’t used it for a while, so it would feel special.

There was one set of onahole and lotion left in the drawer. I laid a towel on the bed, placed the onahole on it, and poured in the lotion.

It was best to warm it up slowly and enjoy it, but I couldn’t wait any longer. The memory of inserting my penis into Miyu’s vaginal opening in the bath came back to me, and my penis, which was twitching as if it were making the sound “bikibiki,” was raging. I threw off my pants and underwear and pounced on the onahole.

“Haa… ahh… ugh… Miyu…!”

I sank my waist and inserted my penis into the onahole, and I could no longer suppress my sexual desire.

“Miyu… it feels so good… Miyu, Miyu…”

I thrust it in, and it leaked honey. Just like today’s Miyu. The rubber material was swollen to the point of bursting, stretched by my erect penis. The onahole felt tighter than usual.

“Ah, aaaah… Miyu… it feels good… so good…”

The creaking sound of the bed brought to mind a realistic scene of sex with Miyu.

Sex with Miyu felt good. I wanted to have sex with her for the rest of my life.

“Miyu, Miyu…! Ah, I’m gonna cum inside you… I’m gonna cum, I’m gonna cum inside you…”

My wish to ejaculate inside Miyu was finally about to come true.

“Onii-chan, you’re too loud!”

The door was slammed open.

My waist movement stopped.

Oh no, I made too much noise.

Everything must have been heard.

“It’s late at night. Don’t you know what time it is?”

Miyu was angry, her arms crossed.

I was sorry for being noisy in the middle of the night, but was that the problem?

Miyu approached the bed and squatted down next to it. She observed my pathetic lower body, with my penis inserted into the onahole, in a missionary position.

“Is this me?”

Miyu poked the onahole with her index finger.

“S-sorry! It’s rude, I’ll throw it away right now!”

“It’s okay.”

I left Miyu, who was trying to stop me, and threw the onahole into the trash can with a thud. I washed the lotion, which was stuck all over my shaft, with hot water, and returned to my room. Miyu was sitting on the floor, waiting for me.

“I’m really sorry.”

I apologized profusely. If I were treated like an onahole, even Miyu wouldn’t feel good about it.

“Be quiet next time.”

Miyu didn’t seem angry that I had used the onahole as a substitute for her. After all, I had already treated her like an onahole by having her process my semen with her mouth, and it was a natural reaction.

“Um… is there anything else?”

I picked up my discarded pants and covered my crotch, then sat on the edge of the bed. I was embarrassed to have been seen masturbating with the onahole, and my penis was still erect, but Miyu didn’t seem to want to leave my room.

“This.”

“Hmm?”

Miyu, in response to my question, grabbed the shoulders of her pajamas and pulled them up.

“It’s a new pajama set.”

“H-hmm.”

“What do you think?”

Miyu asked me politely for my opinion. Miyu’s pajamas were a set of short pants made of a thin fabric similar to silk. The faintly tinted pastel pink color formed Miyu’s enormous chest, supported by a night bra, into a round shape, creating a bulge of breasts that lifted the hem on the stomach side.

“I think it’s cute. It suits you well.”

If I were to say my true thoughts, the only word that came to mind was “sexy.”

“I’m glad to hear that.”

Saying that, Miyu left my room. Was this another one of those patterns? It was so obvious that I couldn’t help but understand. Miyu had come to warn me because I had been noisy, but it was just an excuse to prevent me from ejaculating.

I didn’t know why, but I couldn’t help but feel a sense of resentment, having been manipulated so easily. I could just masturbate and ejaculate right now, and that would ruin Miyu’s mysterious plan, but was that enough?

Was that all it took to satisfy me after being made to wait so long, with my testicles on the verge of bursting? Just ejaculating on my own would not give me any sense of superiority.

Then, I would continue to hold back. I would not masturbate until Miyu fell asleep. Although ejaculating inside Miyu was indeed not allowed, getting a girl pregnant was something I couldn’t take responsibility for.

However, I believed that I could do almost anything else and be forgiven. I had a strange conviction that Miyu wouldn’t get angry even if I did something a little sexy.

So, I deliberately forbade myself from masturbating. I would wait until Miyu fell asleep, then thrust my penis into her unprotected mouth and ejaculate inside it. A large amount of semen would come out, and since Miyu hated having her bed and clothes dirty, she would have no choice but to drink it, no matter how much I ejaculated.

I could do it. I had a feeling that I could do it today. After all, Miyu was even able to deal with me when I tried to rape her. That’s why I could make her drink my semen. Even the semen I ejaculated selfishly.

Just thinking about it made my pre-cum stop. I wasn’t wearing any pants. I would stay in this undressed state until Miyu fell asleep, lying quietly on the bed. As long as I didn’t masturbate, Miyu wouldn’t be able to stop me.

“Onii-chan.”

I heard the sound of a door being knocked on lightly. So, she came after all. But unfortunately, I wasn’t wearing any pants, but I hadn’t masturbated. It was a futile action. I had won. I had finally exceeded Miyu’s expectations. I wondered what excuse Miyu would make when she saw me, doing nothing, as she entered the room.

“Are you going to sleep?”

Miyu poked her head out from the door. I could tell that Miyu, seeing my penis not being stroked, was probably panicking inside.

“Yeah. A little early, but I’m going to sleep. I have to leave the house early tomorrow, so I want to rest now.”

“Then I’ll disturb you.”

Miyu stepped into my room and closed the door.

Miyu came to me, holding her usual pillow in her arms as if it were precious.

“──── huh…?”

A pillow? Why was she carrying it?

“Onii-chan, move back.”

Miyu asked me to leave a gap in the bed, enough space for her to sleep. On my bed.

“Huh? Huh? Huh?”

“Move.”

“Okay.”

Urged by Miyu, I gave up half of the bed. Miyu placed the pillow there and boldly entered the futon.

“I’m not wearing any pants…”

“Yeah. I know.”

Miyu moved her body closer to the center of the bed. If Miyu knew that I had been masturbating and hadn’t ejaculated yet, she should also know that my penis was in a state of imminent ejaculation.

Was she in her right mind? I had almost raped her in the bath just a while ago.

“Onii-chan.”

Miyu looked up at me with her large eyes from a close distance.

Oh, she’s so cute. My little sister is the cutest.

“You understand, right?”

“Huh?”

Miyu showed me her pajamas again, pulling them up.

“This is a new outfit. My favorite.”

“Yeah.”

“I won’t forgive you if you dirty it.”

Miyu glared at me with a sullen look.

Then just let me ejaculate. I don’t mind you not drinking it, just give me a little time to ejaculate.

Yet, Miyu moved even closer to me and pressed against me. In this state, even if I managed to hold back my masturbation, I would surely have a wet dream and end up in a miserable situation.

I wasn’t wearing any underwear either. The one who would suffer the most would be Miyu’s clothes. When I woke up in the morning, her pajamas would surely be soaked in semen, changing color.

At least I should turn to the other side. Then there would be less stimulation, and even if I had a wet dream, I wouldn’t dirty Miyu’s clothes. That was, if I didn’t have a strange dream and try to assault the sleeping Miyu next to me.

“Ah!”

I couldn’t help but let out a voice when I saw something that was placed on the headboard. It was a leftover item from when I was with Sachiko. That small item, wrapped in a square package, gave me a mad curiosity.

“M-Miyu…”

I turned over to the other side again, facing Miyu. She was blinking her adorable eyes.

“I found this…”

I held it with my fingers and showed it to Miyu. Miyu blinked for a while, then suddenly grabbed it.

“It’s a condom.”

It was mainly used by men and women for sex, for the purpose of contraception. Or rather, there was no other use for it on the bed, and giving it to Miyu could only mean one thing.

“Onii-chan.”

Miyu looked at the condom for a while, then turned her gaze back to me.

“What are you inciting by giving this to me.”

Miyu’s question. The answer was obvious.

“Umm… well, I mean… I want to…”

“Yeah. I understand that, but why?”

I was confused by her question, then I understood her intention, and I was taken aback.

I gave Miyu a condom because I wanted to have sex with her. And why did I want to have sex with Miyu? Because I wanted to release this accumulated sexual desire. That was the only reason. I had selfishly desired my sister’s body.

I liked Miyu, and I respected her as a woman. That was what I had intended, but this was the same as before. It was no different from the selfish masturbation I had done, using an onahole as a substitute for Miyu.

“I’m sorry.”

“Why are you apologizing? Say it in words.”

There was no anger in Miyu’s tone. Was it hidden so deep that it couldn’t be seen, or was she so disappointed that she couldn’t even get angry? Either way, there was only one thing I should do.

“I wanted to have sex with you, Miyu. I was so horny. I thought it would feel good to ejaculate inside your vagina. That was the only reason I…”

No matter how perverted my desire was, I didn’t intend to hurt her. It was the same when I tried to assault her in the bath. I should be grateful to Miyu, but all I did was vent my sexual desire on her. Even if I was forbidden to ejaculate and my sexual desire was stirred up, I should have respected her dignity as a girl.

“Hmm. Well, that’s fine, then.”

Miyu threw the condom back at my chest.

“We won’t have sex. I’m your sister.”

“Huh? Yeah, you’re right.”

For some reason, I felt like I had been forgiven. Not only did I use an onahole as a substitute for Miyu, but I also treated her like an onahole, and yet she said, “Well, that’s fine, then.” Wasn’t that supposed to make someone angrier?

“Where’s the remote? Turn off the lights.”

Following Miyu’s instructions, I turned off the lights in the room. In the darkness, on the bed, with my sister. Miyu made herself small, folding her arms, and came close to me, pressing her chest against mine.

She’s so cute. She smells so good. But why is the distance between us getting closer in this flow? It was the same when I went to the bathroom. I didn’t know what was going on. But anyway, my little sister was so cute.

“Miyu, I wish you would at least let me wear some underwear…”

Miyu’s legs were resting on my inner thighs. In this state, I couldn’t move. If I slept with my lower body exposed, I would surely have a wet dream and ejaculate on my pajamas. And it would be an incredible amount.

“Miyu?”

I realized that I could hear Miyu’s peaceful breathing. I thought she was pretending to be asleep, so I tried to scare her by tapping her chest, but there was no reaction. I tried to put my finger through the gap where the buttons were fastened, but the sleeping beauty didn’t wake up. She didn’t even flinch, even though she should have been unable to tolerate being touched on her chest.

I didn’t know that Miyu fell asleep so easily. I didn’t know that, of course, because siblings don’t usually sleep together.

“Mmm… something…”

Holding Miyu’s head in my arm made me feel calm. It was as if the wild waves of sexual desire that had been rushing in just a moment ago had disappeared. The smell of her freshly shampooed hair was now just pleasant.

I was getting sleepy.

Yet, my lower body was still full of energy.

My eyelids were getting heavy.

Miyu.

You smell so good…

“──fah… ugh…”

When I opened my eyes again, it was around the time when the morning sun was stimulating my eyelids. I had fallen asleep so easily, even though I had been so excited. Miyu was still sleeping in my arms. Her long eyelashes, her straight nose. No matter how many times I saw it, this was the shape of a beautiful girl. How could I, who had done so many things, be in such a state of happiness?

“Mmm… what…? It’s Onii-chan…?”

The princess, with her sleepy eyes still hazy, finally woke up.

“Good morning.”

“Good morning…”

Miyu grabbed my clothes and rubbed her cheek against it. Was this really Miyu? Wasn’t someone else inside her body?

“Umm… Onii-chan… why are you in my bed…”

“This is my bed. You really are bad at mornings, Miyu.”

“Huh?”

Miyu raised her face and looked around. It was a room that was unfamiliar to Miyu. The color of the futon was different, and there was no cushion.

“Hah── damn it!”

Miyu quickly threw off the futon and got up. The first thing Miyu checked when she woke up was my penis. Was that okay for a girl?

“You… didn’t ejaculate?”

“Fortunately, I was so sound asleep that I didn’t even have time to have a weird dream. I didn’t even go to masturbate.”

“I see. Good job. But I don’t intend to forgive you that easily.”

Miyu kicked the futon to the foot of the bed and straddled my still-exposed lower body. Her eyes were sullen. This time, I could clearly feel her anger.

“Huh, did I do something wrong?”

“I guess so. You had that attitude, as if you didn’t remember anything, all the time.”

No, no, no, please be more obvious when you’re angry. The punishment of tempting me erotically and making me hold back my ejaculation was a reward for me.

“Onii-chan…”

Miyu put one hand on the side of my body and used the other hand to caress her chest. The outline of her breasts, emphasized by the gravity of the pajamas, was destructively sexy.

“When I was groggy the other night, after the results of my health check, you said you would do anything to apologize for squeezing my breasts.”

Two nights ago, I had taken advantage of Miyu’s bad mood when she was groggy after the results of her health check and squeezed her breasts. For Miyu, who had a complex about her large breasts, it was something she couldn’t tolerate more than being touched on her private parts.

“Are you angry about that?”

“I’m angry about that, too.”

Then, had I done something else? But this time, no matter how much I dug into my memory, I couldn’t think of anything.

“Hey, Onii-chan. Do you mean it when you say you’ll do anything?”

“Of course! I’ll do anything you want!”

I couldn’t bear it if she ordered me to die, but I was sure Miyu wouldn’t say that.

“Onii-chan, you’ve been helped by me many times.”

“Yes, that’s true.”

“You’ve been scolded many times.”

“That’s also true.”

“Don’t you feel bad that you can’t repay me or apologize?”

“You’re absolutely right…”

If Miyu said I could do anything, then I would do anything. That’s how much she had done for me. I couldn’t do it.

“Onii-chan, do you understand the meaning of the words ‘I’ll do anything’?”

Miyu moved her face closer and pressed her index finger hard on my rib cage.

“Anything. I mean, you will obey any command I give you. You will gladly follow it. No backtalk is allowed. No questions are allowed. And I will never, ever, forgive you if you refuse.”

Miyu’s voice became more and more intimidating.

My instincts as a living being were telling me.

This, is kinda bad, isn’t it?

I should resist. No matter how much favor I had done in the past, this was something I shouldn’t promise. This was the last chance to hold on. If I could still turn it around here, I might be able to soften the conditions.

“Ugh…”

Say something back. It was absolutely not good to accept what was said.

“BOnii-chan, this is the last confirmation. From today until two days later, you will obey my commands. No matter how much you dislike it, no matter how dangerous it is. You are a slave without a mouth, and you must absolutely obey.”

No, say no. Yes, with no on top, a concession, a conditional agreement.

If I agreed here, I couldn’t go back.

Or even to the path of humanity.

“If you break your promise, I will never ask you for a favor again.”

It pierced my heart. The thought of never being able to have Miyu rely on me in the future was hell. I was sure that Miyu was talking on the premise that I would nod my head. That’s why there was ejaculation management yesterday.

“I understand. I promise.”

So, I said it. I uttered the words. I would surely fulfill the unknown anger that Miyu was holding and the desire that was born from it.

“As expected of Onii-chan. That’s a very good answer.”

Miyu showed a slight smile of satisfaction, then got off the bed and reached for the doorknob.

“The first command. For two days, you are not allowed to ejaculate until I say so. Wet dreams are out of the question. It’s a self-reporting system, but I’ll know if you lie.”

Miyu opened the door, stepped into the hallway, and turned back.

“Be back at exactly six o’clock tomorrow. Until then, you can do anything as long as you don’t ejaculate. See you.”

Patan.

The door was closed. I was left on the bed, not allowed to calm down this raging penis.

“I have to wear inconspicuous pants…”

What would I use the accumulated semen for until six o’clock tomorrow?

Before that, what had I done?

Anxiety filled my chest on this summer morning.

I left the house to spend a day without being allowed to ejaculate.