Chapter 1 - My Younger Sister Doesn't Work Hard
The house was purchased shortly after my younger sister Miyu was born, and since we were very young, we had each been assigned our own room. I was having an affair with my younger sister for the first time in my life on the single bed in my room, where we had spent almost the same number of years since I can remember.
"I'm sorry I haven't been ...... honest with you, Onii-chan. The truth is that I ...... have always been..."
Without wearing pajamas or even any underwear at all, blood siblings Miyu and I embraced each other as we were born. Miyu's lips, staring at me with a sad expression, moved in the haze of my excited vision.
My heart was racing painfully, and I was in no condition to sleep. The blood pumping out of my violently beating pump is pumping straight to my groin, making my penis hard and engorged. In this situation, where our genitals were already close enough to touch each other, we were in a position to start having sex if I moved my hips just a little more.
"Miyu...... I like Miyu too......! Forgive me for being such a Onii-chan,...... I'm in love with Miyu,......!"
My brain, which had sullied my true love for my younger sister, and had shirked my responsibilities as an older brother, was driving my desire to go beyond skipping the romance. A bare penis, without even a thin piece of rubber attached, was inserted into Miyu's vagina as if it were a representation of my gut losing its shit. By the time the cock was inserted up to the neck, both Miyu and I were breathing hotly. The immorality of having my own sister inside my vagina with no contraception had already reached the limit of my ejaculation desire before I even started shaking my hips.
"Miyu, ...... sorry, I don't think I can stand it at all......! I'm going to ejaculate inside Miyu's vagina ......!!!"
It was a momentary communion that I don't even know if it could be called sex any longer. I screwed my come-ready phallus into Miyu's female hole, who didn't know any man yet, and I wiggled my hips as much as my thoughts as I felt the signals from my brain ordering me to ejaculate.
"Oh, haaaa...... Onii-chan...... I love you too, Onii-chan...... I love you so much.... ...!!! Cum inside me ...... and pour a lot of Onii-chan semen inside my vagina ......!!!!"
"Ugh, ah......!!! Miyu!!!............Miyuuuuuuuuuuuuuuuuuuuuu!!!!"
The semen that was released as she cried out her love, flew out into Miyu's vagina with great force as if shot by a hammer, and mixed with the love juice that leaked from the crack, causing an unpleasant slickness in the groin area. I continued to ejaculate with a thump as I held Miyu tightly, and in the process, I fell into a feeling as if I was floating in the air - and eventually woke up under the covers. I was sweating all over, and even though I hadn't actually stroked my hips once, the general feeling of exhaustion and shortness of breath was the very sensation I experienced after the event.
"Ha, ha ............ haaaa ...... seriously ......?"
It was already the third time I had dreamed at my age. The feeling of Miyu remaining on my body was becoming more real each time I dreamsexed, so much so that I didn't even need to peek inside my pants to know, and the amount of semen I spit out was nothing compared to the last time.
(What should I do ...... I wonder if it was in my voice ......)
It was already not so early in the morning. If I was panting as much as I was in my dream, there was a chance that Miyu, who woke up first in the next room, could have heard it. If so, Miyu would come to my room and say, "───Onii-chan, I'm so happy to see you.
"──Oh Onii-chan, did you ejaculate in your sleep again?"
Miyu came to my room in her pajamas, looking familiar. This is not a dream, but a real younger sister. This is the second time since the summer vacation, so I am not even stunned anymore. And this was the second day in a row since I had a dream yesterday.
I had to use Miyu, my own sister, as a cumshot, but in order to return to the relationship we should have as siblings, I didn't ask her to drink my semen after she declared that she wouldn't work hard.
On top of that, I was trying my best not to wank Miyu as well, but I had no other means of ejaculating through masturbation other than fantasizing about sex with Miyu, and from then on, I inevitably had to stop masturbating. Perhaps the sense of impending danger of losing my younger sister was acting on my instincts, but within two days my testicles would exceed their storage capacity, and I would force myself to ejaculate even by showing Miyu in my dreams. I'm beginning to think of my younger sister as a succubus who shows men her lewd dreams and makes them ejaculate.
"So what are you going to do this time?"
Miyu asks as she stands at the door, neither entering nor leaving my room, because I had lost my patience yesterday and asked Miyu to lick off my semen. Of course, that is no longer allowed. I'm working hard to get away from my younger sister, and under no circumstances should I have to deal with the semen myself.
"And anyway, ...... I'm not going to ask you to lick me clean like you did yesterday ...... that ......."
"Hmm? Do you do? Don't you?'''
"Tah, I'll ask you to ...... do it, okay?"
"Well. I wouldn't say no, though."
Miyu came into the room, closing the door behind her. I couldn't refuse. Miyu was coming on to me aggressively. Even if she knew I dreamed it, she would never come to my room. Why would she go to the trouble of coming to him older brother's room where she dreamed?
If I thought that Miyu was coming to my room to have skinship with me of her own volition, I could understand her behavior. But I wonder if Miyu's words, "I don't try hard to be patient," can be interpreted in such a simple way.
"Yes, Onii-chan. Get up off your back."
Miyu took off the futon and removed his pants in a manner she was completely used to. When Miyu sat down on the bed with her flats and bent forward to help me with my pants, her hair brushed down to the sheets and her glossy locks looked so beautiful that it reminded me of a clear stream. The cups of her bra and the pressure of her big breasts made a spherical shape, and her cleavage was hidden by her tightly closed button pajamas. Even first thing in the morning, the way she looked at my whore with dignity seemed to be returning to the Miyu of early summer.
I still don't fully understand the meaning of that conversation I had with Miyu on the last day before summer vacation. But it seems that when Miyu has sex with me - and in her interpretation, we haven't had sex yet, so she's just processing my semen with her mouth - her sexual desire increases to the point where she can't resist masturbating.
I wonder if that had something to do with the fact that I had trouble getting out of bed at some point. Or maybe she was just tired from masturbating too much. Just imagining this younger sister suddenly moving her fingers and playing with her sensitive parts when she is alone and lonely is already too erotic.
"Hey, look at me with your eyes as if you were looking at something naughty like that."
Miyu pulled my pants off and put one side of my hair over my ear and the elbow opposite it on the mattress to lick the semen off my crotch area. Miyu, her tongue stretched out in front of her semen-spewing, shrinking half-penis, looked at me as if she was having trouble doing it. If this isn't being a naughty younger sister, I don't know what is.
"Is there anything happier in my life than having Miyu drink my semen ......?"
"Yes, yes, don't be silly, just shut up and get processed ...... n...... heck ...... chupu ......"
"Ugh ...... hah, oooh ...... Miyu, that ...... feels so good ......!"
Miyu's tongue touches her crotch, and the raw, warm pleasure moves from around her bladder to the scrotum area. Licking off the semen, Miyu lightly raised her chin and gulped it down her throat, and the thought of my semen being swallowed down with the movement of her throat muscles made me horny again, even though it was right after ejaculation.
" I'm done."
Miyu licked the cum stains that stood out and fingered the ones she could pick out as clumps, but she didn't lick the pole or scrotum as she should have. That was the area where the most semen was dripping. Miyu has decided not to hold back when it comes to sex, so if I ordered her to give me a blowjob now, she would comply. But that would be a breach of honor to Miyu, who has done so much to get away from her sister.
"Mi, Miyu ...... Oh, um ......, if you don't mind, just the ...... tip of it ......."
Oh God, I'm screwed. My guts are getting more and more screwed up. I was still resolute during the few days when I decided not to have sex with Miyu, but since our skinship has decreased, I've been unable to suppress my sexual desire at an accelerated rate.
"What exactly are those demands?"
Miyu asks once she sits up and looks down at me lying on the bed. I take one look at my fig, which is so bucked up that it's hard to believe it's post-ejaculation, and my eyes become sharp, as if I'm looking at a bugbear.
"I still have some residual sensation in my ...... urethra, so I was wondering if you could suck it out of my ......... ..."
I asked, and Miyu closed her eyes and thought about it for a few seconds before she picked up a pillow and pressed it against my face.
"Here, blindfold me with this."
That was the condition for sucking out. The fact that I had experienced something similar once before, and the fact that Miyu doesn't try hard to hold back anymore, so if I asked her to do it orally, she would do it. But that doesn't change the fact that it would be embarrassing to be seen in the middle of the act, and if I cheated and saw her, she would shove a pillow in my face until I passed out.
"Ok. Just do it like this."
Hearing my agreement, Miyu lowered herself again to suck out the semen. Then I felt fingers on my pole from both sides, and the muscles of my penis stretched as it collapsed to the lower half of my body. Miyu was supporting my erect penis upward.
"Nnnggg......chu......."
"Ahhhh......!!! Aaahhhh......!!!"
Miyu sucked on my urethra without a pause, perhaps deciding that I was getting her hopes up. She covered the tip of the penis, which was not even hidden by the glans, with her lips only so that the pressure would be released from the crack of the penis where the semen was coming out. The rhythm of the chucking, chucking, honey-sucking, and the feel of the tongue extended to spread the crack was creating the illusion that I was being sucked off, with my vision blocked by the pillow. Or, in all likelihood, it was only a blow job.
"Oh, ugh ......, Mi, Miyu ...... sorry, really sorry ......!!!"
I had just dream-sexed and the stimulation being given to my penis was very limited. Not even visual information, not even obscene language being exchanged. Still, the mere fact that Miyu's mouth was on the ejection site of my semen was enough reason for my body to ejaculate.
"It's coming out! ...... Oh, it's coming out!"
"Nnnn......! Nnnn......!!!"
She poured additional semen into Miyu's mouth, which was sucking the semen out of her urethra, with a jerk, jerk, jerk. Even though this orgasm was brought about by such a short act, the oral ejaculation into Miyu's mouth did not stop, and the continuous ejaculation continued until the remaining rounds ran out. Perhaps it is because of the reduced skinship that this body feels it has to give Miyu a drink when it can.
"Mmm ......."
Miyu stares at me with a large amount of semen in her mouth. I mean, she can't open her mouth because she's holding my semen, that's too erotic.
"Nkkk......puha....... I already knew that Onii-chan ...... has a constitution to come out even without stimulation. What's with that quickness?"
"I'm sorry,...... but to be honest, it already feels so good to put it in Miyu's mouth rather than being stimulated,......."
"You're a helpless cissexual premature ejaculation. ......"
Miyu was taken aback, and actually wasn't that angry per se, but it seemed that her sexual desire was coming to a head as a result of the large amount of my semen she was forced to drink, and she looked down at me resentfully, her knees squeezed shut and her thighs itching as she rubbed them together.
"Hey, are you okay, ......?"
"No, I'm not okay. Take responsibility."
Miyu falls down with her hands out in front of her and forms a wallop on the bed on me.
"What ......! Oh, oh ......."
What do you mean "take the blame"? I'm not sure if it's a good idea or not, but it's a good idea. If that's the case, I'll take as much responsibility as I want.
"For now, wipe that dirty thing off and lie down on the bed."
Miyu ordered me to lie on the futon on the far half of the bed while she instructed me to clean up the semen on my penis with a tissue. I knew I shouldn't disobey Miyu in this situation, so I did as I was told. I don't think she would have wanted me to use the tissue from the beginning if I had used it. I am sure no one would think so. I believe that it feels better to have her lick it off, and I believe that Miyu wants to maintain some form of skinship with me.
"Well, ...... are your pants ......?"
"You don't have to wear them. And put these earphones on and face the wall. Absolutely no taking them off or looking back until I remove them."
Miyu got a phone and a set of earphones from my desk and had me play music that kept playing ambient sounds. She then had me put them on my ears and then got under the covers with me. I was left facing the wall, feeling only Miyu's body heat on my back. Miyu's upper body was tightly against mine.
My pants and underpants are dropped to the floor, exposing my lower body, and I am lying in the futon, feeling my younger sister's warmth on my back. My ears were playing ambient music from a cafe played over the Internet, and I could just hear the light jazz music and the sound of clinking and stacking plates.
Then, to my surprise, Miyu didn't do anything - or, to be more precise, I could feel the slightest hint of movement, but she was just clinging to my back. I wondered for a few seconds if I would be taking responsibility for Miyu if we were to sleep together like this ....... However, there was no way that the horny Miyu would just get into the futon and sleep quietly, and the heat transmitted from my back was gradually increasing, and Miyu's moseying around was getting louder and louder by the minute.
(This is ...... doing it behind my back, isn't it ......?)
The reason why Miyu dared to cover my ears is because there is something she doesn't want me to hear. It's a very good idea to have a good time with your friends and family.
Miyu not only clung to me, but even sniffed my neck as she hugged me tightly enough to press her breasts against me. The breathing on the back of my hair was getting more and more intense, and I guessed that Miyu was about to come. I know that she feels something arousing towards me because she was masturbating while wearing my pants the other day. But what is that if not romantic feelings?
(Oh no...... earphones, they're coming off......!)
The earphones were almost slipping off my head as Miyu clung to me from behind, her movements becoming more intense and rocking me. I was so engrossed in masturbating that there was no way that Miyu would notice, but if she heard me and didn't say anything, it would be a breach of promise. So, I tried to put the earphones back on by stealthily reaching for my ears.
Miyu thought I was trying to take the earphones away from her, but she held my arm. Then, while blowing her rough breath on my neck, she shook her body with a gurgle and even climaxed.
"......Onii, chan......! Nn...... nn...... nn─!"
The earphones came off with the shock, and the plaintive jazz music took a turn and Miyu's urgent voice drifted into my voice. Even under such circumstances, Miyu is still holding on to me, holding my arms down. She continues to tease my secret place with her other hand that is blocking my movement.
"Hah ...... nnnn!!!! Mmm, ah...... ah...... ah...... ah......!"
Both the steamy hot breath and Miyu's sweaty high body temperature make me tense up. I should have known that if she was doing it so brazenly, I would know even if the earphones weren't removed, but still, Miyu was really masturbating behind my back. I was surprised that she went to the trouble of covering my ears and masturbating in the same bed with me, instead of sneaking off to her own room. I wonder if this is what it's like for a girl to wank a guy.
"U......fu....... Haa."
Miyu seemed satisfied after coming for a moment. The earphones had come off my ears, but she didn't care about that and went into her rest.
"Um."
"What? I'm going to bed."
"...... I've got a boner again.''
"I'm not in the mood for that anymore."
Well, that's just the way it is, isn't it? Or rather, I'm the one who's still horny after all that ejaculation, which is weird.
"Well, I can't help it. Just keep the tissues ready."
Miyu handed me the box of tissues and told me to do whatever I wanted, and then she grabbed my erect penis and started shimmying it back and forth. I don't know if I'd call it a hand job, but for me, just the fact that Miyu was doing it for me was reason enough to ejaculate. I spewed my semen into a tissue I had prepared myself, while my siblings were all under the covers in silence.
Miyu knew I had ejaculated by the jiggle of my penis, so she stopped and fell asleep. I had done something naughty with my younger sister again.
"Mmmm...... hmmm...... Onii-chan...... your back is getting bigger...... hmmm. ......."
In the calm air for a change, Miyu fell asleep soooooooooooooooooooooooooooooooooooooooooooooooo asleep. What we're doing, or at least, the lewd skinship that even lovers don't engage in. But once our mutual sexual desires have calmed down, we go back to being a little more like close siblings. I will always love Miyu because she makes me look so adorable.
(Let's make an appointment to meet Yamamoto-san as soon as possible. I can't take the place of Miyu, who has lost her patience.)
With Miyu's hot body on my back, I reached for my phone on the bedboard and sent a message to Yamamoto-san with my fingers, which were almost shaking with impatience.