I've become completely unable to bust a nut without my little sister.
Ever since the day she caught me masturbating, I have continued to use my little sister as my fap material, which hasn't changed until now...
Different from before, however, I've begun feeling pain just thinking about having sex with another woman.
Solely using my little sister as my fap material even got me to the point where I didn't even want to start up any eroges at all. I even thought about deleting them from my system files.
I'm aware of the fact that that's unusual in the eyes of the world.
Though, is it really my fault?
Sure, it is true that Miyu doesn't have much charm, and it was I who asked her to take my semen.
Still, as far as I'm concerned, I'm not going to change my opinion.
My little sister is seducing me.
"Miyu. Can I talk to you for a moment?"
I knock, half-open the door, and start engaging in conversation with my little sister in her room.
My sister's pattern of behavior after school is generally fixed: she either comes home after shopping or goes straight home to study in her room.
I guess she doesn't go out that much with her female friends, let alone with men.
I was surprised that my little sister was unmoved even after encountering her older brother masturbating, but there was no way that such a slutty woman could have a boyfriend.
Or - and this may be a really creepy assumption - in one case, it is not impossible to think that Miyu actually likes me.
Because come on.
At the very least, there's no way any woman would drink the semen of a man she doesn't like.
"What's wrong?"
Hearing Miyu's ponderous reply, I slowly open the door.
As expected, Miyu was at her desk with a textbook open.
I guess you could call it girlish, but her room is mostly white with a slight red tint. Her bed has cushions made of polyester fabric that look comfortable to the touch.
"I came here to get it out of my system."
The words came out of my mouth more smoothly than I expected, but when Miyu noticed the bulge in my crotch, she gave me a dubious look.
"Hey, Onii-chan."
Spinning her chair around, Miyu faces me directly.
She spoke with a low toned voice.
This is my little sister in preaching mode.
"How would you feel if I told you to go take out the trash while you were taking a bath?"
With a straight face, I was confronted with a perfectly valid argument.
"That's, well... troubling."
I completely lost the spirit I had when I entered her room, causing my private parts to go limp as well.
I messed up.
I guess I went too far, even if it was a mistake.
If this makes her hate me, that would be terrible.
"If you can cum right away, I'll be in Onii-chan's room at exactly 9:00 pm."
My eyes meet Miyu's, who stares at me with a straight face.
She proudly declares that she's coming to drink my semen, but yet, how can she be so emotionless?
"I got it. I'll look forward to it."
I obediently accepted her proposal and left Miyu's room.
9:00 pm is roughly 30 minutes away.
The only time Miyu has ever given me the OK to catch my semen was when she was bored in bed or on the couch.
Even though I asked her to do it, it would be the first time she comes all the way to my room to do so.
...She's actually coming, right?
I can't hold a grudge against her if they she doesn't show up, though.
For now, I guess I'll go back to my room and jerk off.
"Haah."
I take off my underwear and sit on the edge of the bed in my room.
I put my right hand on it as if to wrap it up, feeling resentful of the honesty of the rod that was beginning to swell and grow.
My little sister will now come to this room and set her mouth open at the end of my urethra to drink my semen.
While I think of such an erotic situation, I still can't help but feel another desire.
(I wonder if she could give me a blowjob.)
I've only ever seen it in porn, but it seems like it feels really good.
I don't think it would be too much of a burden for Miyu if it was just for a moment right before she left or to clean up afterwards.
I wonder if she would have any opposition coming into direct contact with excretory organs.
Not for me, I'd happily lick Miyu if she asked me to.
"............"
What kind of desire is it to lick your own little sister's vagina?
It's pathetic.
It's pathetic, yet I can't help but get a burning erection imagining it.
What color is Miyu's vagina?
I'd had vague fantasies of having sex, but I'd never thought about what the crack looked like.
At the very least, can you please let me look at it?
As I continued masturbating, my wishes only grew greedier.
You shouldn't have acted in such a suggestive manner.
If you had rejected me from the beginning, this would not have happened.
"Knock knock. I'm coming in, Onii-chan."
I heard my little sister's voice uttering the onomatopoeic sound of knocking.
Was it already time?
Perfect timing.
I just wanted to cum by now.
"How is it? Are you about to cum?"
The little sister asks, with only her face sticking out of the door.
No longer does she have any special reactions when she sees me masturbating.
"Yeah. I'm already gonna cum."
I urged Miyu to enter the room while increasing the speed of my right hand.
Miyu carefully opens and closes the door so as not to make any noise and approaches me.
Then, Miyu sat flat on the floor and spread her mouth in front of my penis.
Miyu tucks her long hair behind her shoulders and hangs her fringe over her ears just in case.
The bosom of her button pajamas firmly guarded the skin of Miyu's ample breasts except for the first button, but just being able to see their fullness in person like this was enough fuel for me.
I see some saliva in her mouth.
I shook my head, thinking that it would definitely feel good to insert in her mouth which instantly provided the stimulation necessary for ejaculation.
"Uu... haah... cumming......!"
Miyu leans forward to prevent it from overflowing, and between her lips, cloudy white liquid is released from my rod which is repeatedly contracting.
After shooting it out about five times, I felt like there was still semen left that I could produce. I rubbed my cock continuously and surrendered myself to the feeling of ejaculation which came quickly, making me ejaculate even more.
As expected, there is a clear difference in the amount of ejaculate when cumming onto a tissue and cumming on Miyu.
Looking at the lewd liquid in Miyu's mouth makes me want to make her drink more of it.
Such a quantity of semen, which would fill an espresso cup, was gulped down Miyu's throat.
At first, Miyu was unable to hide her feeling of bitterness, but now she seems to have grown accustomed to the taste and swallows it without moving a single eyebrow.
"Nn. Good night then."
After Miyu finished handling it, she left the room without enjoying the aftertaste.
There was no time to say thank you to her.
I don't know what she's thinking and why she's taking my semen.
Left alone in the silent room, I placed a tissue over the still dripping tip of my cowper and tossed it into the trash can, which had become much more eco-friendly nowadays.
I have found that one of the conditions for getting my little sister to handle my masturbation is to not make her spend time and effort on it.
Although she didn't directly tell me that, I have rarely been turned down since I started making my requests at times when she seemed to be free.
At the same time, I understood something sorrowful.
As it turns out, Miyu was just 'providing a place to dispose of waste without making the room dirty.'
It wasn't like she had any feelings for me or like she accepted my feelings.
Miyu told me to keep the time between asking and ejaculating as short as possible.
The bottom line is that she doesn't want any direct contact except at the moment of ejaculation.
For Miyu, taking my semen was like being asked to pick up a soy sauce jug while sitting around the dinner table, and if it wasn't too much trouble, she would have no qualms about it at all.
It's not like it's something to be shocked at.
I should be grateful enough for this, considering from the outside, we siblings are abnormal in every way.
"-so, I had a thought."
As usual, I asked Miyu in the living room right after she got home from school.
"You said it was disgusting when I tried to cum on your thighs. How is that any different from taking it in the mouth?"
It's been bothering me for a long time.
Well, I guess it has something to do with my mood and what I'm used to.
My little sister is my little sister, and she seems to some strange fixations.
"......Why?"
Miyu, lying on the sofa, asked another question back to me.
I wonder why she didn't just answer honestly when asked about it?
"I mean, come on. If you're okay with me letting it out in your mouth, it should also be okay to let it out on other places, or at least that's what I think."
In terms of convenience, handling it with the oral cavity is by far the most convenient.
No need to wipe or wash; just swallow.
That alone is reason enough to use your mouth.
However, Miyu spoke about that clearly.
'Spraying semen on your little sister is just disgusting.'
"Are you not satisfied with my mouth?"
Miyu postpones answering me and asked more questions.
She seemed to have a slightly emotional tone if I wasn't mistaken.
"I'm not complaining, I'm just asking. Wouldn't it be grosser if I were to cum in your mouth?"
That's usually the case.
Anyone would say that.
"Uh..."
Miyu cowered, hiding her face with the manga book.
What the hell.
What the hell is that response.
"I mean, come on."
Miyu stares at me with only her eyes revealed.
"Isn't the body the place where clothes touch?"
Miyu said.
I tried repeating those words in my head several times, but I didn't get it.
Sorry.
Onii-chan does not understand what his little sister is saying.
Clothes?
Are clothes really that important?
"Ah."
When I had reached that point of thought, I remembered.
The very first time I ejaculated on Miyu, I got quite a bit of it on her clothes.
I didn't think anything of it at the time because my mind was blank, but she was pretty pissed off.
"I see, clothes."
At the very least, I understand how she feels though.
I wondered why she were so shy to answer.
"Since the area where semen gets on is sticky, is that why you don't want your clothes touching them?"
"Something like that."
Apparently, clothes are more important to her than her body.
She is still a little sister of many wonders.
"So, if it's right before you take a bath or something, can I cum on somewhere aside from your mouth?"
"I don't mind."
Miyu returns to her unfriendly mode and answers indifferently.
"Eh!? Is that really okay!?"
"Yeah."
Miyu continues reading her manga and gives an impassive reply.
Oh no, I'm so happy and surprised that I can't think properly.
"Then, um, can you tell me when you're going to take a bath?"
Striking while the iron is hot.
I want to cum before she changes her mind and says that she doesn't want to do it after all.
"Are you gonna cum today again?"
"Y-Yes."
The unexpected question rekindles my feelings of guilt.
I'm sorry for being such a masturbating older brother all the time.
"But I don't think I'd like to do it in the bathroom when mom and dad come home..."
This reluctant little sister of mine.
"What if it was right now?"
Bite back.
I can't just give up like this.
"Now?"
Miyu moves the manga to the side and sits up.
"You wanna cum now?"
I could feel my dick reacting.
Staring at me with such bright eyes and and asking, "You wanna cum now?" as if she was trying to soothe a child. If you're gonna ask me like that, of course I'm going to cum.
"Yeah."
Regardless of the reason, I had a strong desire to cum.
That alone was enough to make me selfish.
"Hmm."
Miyu is worried.
This is the difficult part.
Miyu hates being made to go through any kind of hassle.
I guess she doesn't feel comfortable going out of their way to take a bath early just to accommodate my request.
"Hey. There's something I'd like to confirm."
Miyu twirls the ends of her hair and asks me playfully.
She never had this kind of atmosphere before.
My neck feels tingly and my mouth has suddenly become dry.
What is this feeling, I wonder?
The air feels crisp yet gritty.
It was a familiar feeling.
It was around junior high school.
It felt like that time when I indirectly confessed my feelings to a classmate who I couldn't even say I liked or didn't like, and then got indirectly turned down.
It was an unpleasant atmosphere.
"Onii-chan, are you perhaps using me as your fap material?"
With a meek look on her face, she asked.
I quickly shake my head and suppress my impatience.
"Of course not."
My mouth was dry, causing my voice to sound hoarse, but it seemed to reach Miyu's ears properly. I succeeded in coaxing out her usual compromise, saying, "Then it's fine."
Wait, little sister of mine.
I thought you approved of me using you as fap material.
"Then it's fine. I'm going to take a shower. Call me when you're ready to cum."
Miyu gets up from the couch and heads for the bathroom.
She opened the living room door and was about to go out into the hallway when she turned back to me after not getting any response.
"Did you get what I just said?"
My little sister stares at me with narrowed eyes.
I wonder if what you just said was about that fap material thing.
I understand.
I understand, should I really not use you as fap material...?"
"If you sniff my clothes, I'll get angry."
I involuntarily straighten my back at the strong tone of her words.
"I-I won't."
I stiffen like a robot and answer in broken language.
Miyu, who was satisfied with such a reply for the time being, went into the changing room.
"Haah. So it was like that."
I take a deep breath and relax.
She seems to have an extraordinary attachment to her clothes, but as long as I don't carelessly touch her clothes or body, it doesn't look like she has any problem with it.
Nevertheless.
Why I can't smell it?
When I thought about it again with a calm mind, I realised something extremely disappointing.
The girl's scent was an important factor that couldn't be experienced in eroges.
"...Guess I'll start busting one out."
I stood up weakly and walked towards the changing room where the sound of the shower was echoing.
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