"Big brother, let Aya in too!"
Nakata Tomoya glances at his younger sister Ayane, who has burst into the bathroom, with a dumbfounded expression on his face, while sitting on the floor.
"Ayane, you know... I told you to try going in by yourself soon."
"Mm, why are you being so mean?"
"It's not a matter of being mean or anything like that..."
"There won't be any problem. After all, Aya and Oniichan are siblings."
Brother and sister spend some quality time together in the bath.
If the two were still young, it would be a heartwarming sight.
(We're not that old anymore.)
Tomoya glanced again at his sister, who was smiling with her deep indigo eyes narrowed, then shook his head in exasperation.
She was about a head shorter than me and was in her birthday suit, not even wearing a towel around her.
Her arms are crossed in front of her body, so only the tops of her beautiful, bowl-shaped breasts are hidden, and they are an impressive size, like a row of melons.
Her waist and thighs are slender and toned, which accentuates her figure even more.
(Wait, how long am I going to keep looking at this!)
"Anyway, I feel like taking a long soak today..."
While making excuses, Tomoya couldn't bear the embarrassment and covered his lower abdomen with a towel nearby, turning away from the others.
At that moment, my eyes caught a glimpse of my sister's lower abdomen. On her pubic mound, there was a thin, light brown bush growing, the same color as the long hair hanging over her left shoulder.
Her body exudes more than enough feminine charm. Even if it's family, one would normally hesitate to innocently expose it.
"It's fine! I'm already here."
Yet the boy himself showed no sign of embarrassment and sat down facing his brother, who was sitting cross-legged.
She stretched her long, slender, beautiful legs out in front of her and leaned against Tomoya's chest, looking completely relaxed.
"Please do it again today. Aya loves having her hair washed by her big brother ♪"
She looked up and smiled brightly, her cheeks flushed a pale cherry blossom pink.
When Tomoya saw his sister's face like that, he couldn't strongly reject her, as he was extremely sweet towards her.
"...I get it. You're always going to be a spoiled brat, Ayane."
He said this with an exasperated look on his face, pulling closer to her favorite shampoo and treatment that were placed on the wall.
"Hehe, thank you, big brother."
"Yes, yes. But it's too sticky. It won't be washable."
With a wry smile, Tomoya pushed his sister's shoulders away as she rubbed the back of her head against his chest like a kitten, and moved away.
"I don't think I'm particularly good at washing hair..."
She lathers the shampoo in her palms and gently strokes her long brown hair to wash it clean.
She usually wears her hair in a side ponytail on the left side, and it's slightly wavy, smooth and soft like silk.
It has a sweet and sour citrus scent that is different from shampoo or soap.
It's a truly fascinating feeling that makes you want to touch it like this forever.
"Big brother... you always look so happy when you wash Aya's hair."
"Well, Ayane's hair is soft and nice to touch."
His sister looked up again and smiled, and Tomoya honestly replied that there was no point in trying to cover up now.
"Of course. Aya's hair is soaked with her big brother's kindness."
"Yes, yes, just say it."
Ayane replies calmly, and Tomoya feels embarrassed and looks away.
(Really, no matter how old he gets, he's still a spoiled brat.)
Tomoya's father and Ayane's mother, who lost their spouses at an early age, remarried before the two were even old enough to remember.
Although they are blood siblings, to them they are like blood family.
When the older boy started kindergarten, his parents, who both held important positions in the workplace, became busy with work, and the children began to spend more time alone.
"Mom and Dad are busy, so I'll take care of my little sister!"
Ayane, his younger sister who is only one year younger than him, became very attached to her brother who took care of her driven by a childlike, straightforward sense of mission.
"I love you, big brother!"
Seeing my sister, who smiles innocently and follows me wherever I go - she is so fond of me that she even tries to follow me to the bathroom - makes me want to love her even more...and this feeling continues even now, more than a decade later.
At home, he always sits next to Tomoya.
Since we go to the same school, we naturally go to school together, and during breaks he often comes to the classroom to show his face.
Neither of them has any particular hobbies and they're both members of the after-school club, so they usually walk home together.
Except during class and when she's sleeping, she's always clinging to him. In fact, even when she's sleeping, she sometimes crawls into Tomoya's bed, saying she had a scary dream.
Objectively speaking, he is a severe brocon. And the boy who accepts it without taking it seriously is also a severe siscon.
(Well, I'm glad that you admire me...)
As she continues to carefully wash her hair from the ends, she casually lowers her gaze.
Under Ayane's face, her eyes narrowed in ecstasy as if enjoying the pleasure, the twin hills of her chest, which had been hidden by her arms earlier, naturally came into view.
It is a beautifully shaped bowl-shaped protrusion, and the protrusion that adorns its top is a clear pale pink color like a cherry blossom petal.
It's so beautiful that your mind goes blank for a moment, and you are mesmerized by it.
"Hmm, big brother, can you wash my body as well as my hair?"
Ayane, still facing forward, mischievously invites Tomoya in, as if she had sensed where he was looking.
"You're being too dependent! You should do that yourself!!"
The voice brought Tomoya back to his senses and he hastily replied with the dignity of an older brother.
(Why am I getting so excited over my sister's body?! Calm down, calm down!)
Picking up the shower, he washed Ayane's hair, which was covered in foam, while lowering his gaze to his lower abdomen, which was still hot and throbbing, and desperately repeated this in his mind.
His spoiled little sister sits between his legs.
If something were to change between her legs, she would easily lift the towel covering her, and the tip of it would likely touch the cleavage of her cute little buttocks.
It's a dangerous position that could easily be noticed.
I close my eyes and distract myself by thinking about the particularly difficult function problem from today's class.
However, doing so makes the pleasant scent wafting from her hair more apparent, and it also makes my heart flutter in an indescribable way.
(Of course, Ayane is really cute. She's cute on a level that makes her look like an idol, but that doesn't mean he's aroused by his sister, which is terrible for an older brother.)
With my eyes closed, I bit back the self-loathing that was welling up inside me.
"Hmm, then Aya will wash your back, big brother."
Ayane said as she stood up and crouched down behind her brother.
With practiced hands, she picked up the body soap and began rubbing Tomoya's upper arms, whose eyes were still closed, with her soapy palms.
"Hmm, hey, Ayane. I'll wash it myself..."
"It's fine, it's just a thank you. Besides... Big Brother, your shoulders are stiff today, right? I wanted to give you a massage while I was there."
Ayane smiled at her hesitant brother and slid her foam-covered hand down to his shoulder.
"Stiff shoulders... hmmm... phew."
When the base of his palm pressed hard against his neck, the just the right amount of stimulation made Tomoya take a deep breath.
It's true that I had stiff shoulders yesterday because I had been using the computer for a long time to finish my homework report, but I don't remember telling Ayane about it.
I don't remember ever showing any such behavior, so I wonder how they managed to see through me.
"Big Brother, your posture was off when you were walking today. Your shoulders were about two millimeters lower than usual… so I thought that might be it."
"Oh, so that's how you find out."
Tomoya was honestly impressed by the gaze, which was just like that of a professional masseuse.
"Of course. Aya knows everything about Onii-chan ♪ Onii-chan's skin isn't very sensitive, so she prefers washing her body with her palms like this..."
As she said this, Ayane gently washed the area around my shoulder blades, then she took her hands off me when she reached the middle of my back and picked up a towel that was nearby.
"Anywhere below this...the area near my waist is ticklish, so I prefer to rub it with a towel instead of my hands."
She muttered mischievously and gently rubbed me again with the lathered towel.
"Ah, yeah, that's right. You really do know a lot..."
It seems like he knows my preferences better than I do.
Tomoya is impressed and gives himself over to the comfort.
"Big brother, it looks like your sides are getting a little tighter. Since last week, you've been doing sit-ups before taking a bath, right? It'll be better for your health if you keep doing this."
"That's true. I mean, the results came out surprisingly quickly."
I look at my side, where Ayane was gently stroking, but it doesn't look any different to me.
(Well, we often get seen taking baths together like this... and...)
"Men's bodies really do have amazing muscles. When I was little, I was just as smooth and squishy as Aya's. Hehe, but now I feel like I can rely on you more."
Ayane slid her foam-covered hands down her brother's thighs and rested her chin on his shoulder, seemingly enjoying the sensation.
Unlike Tomoya, who has recently become embarrassed and has refused to do anything other than letting her hair flow, Ayane doesn't mind at all and really enjoys the physical contact between siblings.
It's only natural that he would become knowledgeable about it if he was teased like this every time he took a bath.
(You've been like this since you were little, Ayane. You'll always be a child.)
I wish not only the body but also the mind would grow as they age.
Well, actually, it might be a little sad if that were to happen.
Just as these complicated thoughts were running through his mind, Ayane playfully rubbed her flushed cheek against his.
"Huh?! Hey, Ayane!"
It felt plump and soft, like freshly pounded mochi. The comfort was just as good as ever, and I couldn't help but raise my voice as I hurriedly asked, glancing sideways.
"Hehe, big brother, should I wash your hair too?"
"Hmm, ah, yeah. Now that you mention it, I think I'm out of shampoo..."
Even if I refused, there was no stopping my sister who was completely enthusiastic.
Tomoya nodded obediently, thinking that, but he soon realized something.
I guess I'll just borrow the one for women that Ayane uses today.
That's what I thought.
"Don't worry, Aya bought it for me yesterday."
Saying this, Ayane reached out towards the bathroom door.
She picked up a freshly opened shampoo bottle, which she must have brought with her when she came in, and waved it in front of her brother as if to show him off.
"Huh..."
Seeing this, Tomoya's eyes widened in surprise.
It's a different brand than the one I usually use.
"Brother, you saw the commercial for this shampoo the other day and said you wanted to try it."
"Yeah, I remembered it well."
It was a word he casually muttered while watching TV.
The next time I ran out of shampoo, I thought I'd buy some if I remembered.
"I told you, Aya knows everything about you, Big Brother."
"Y-you're so right. No, you know too much..."
"Big brother, do you mind? Is there something you don't want Aya to know?"
Unable to hide his surprise, Tomoya muttered without thinking, and Ayane muttered in a monotonous low voice.
Her expression had changed completely from before, and it was like a Noh mask, with no way to read any emotion, and a dark shadow now cast over her cheeks, which had been a healthy pink cherry blossom color.
"Aya thinks that siblings get to know each other really well and get along well."
Along with Aya's whispering voice, a creaking sound echoed in the bathroom.
Suddenly, I noticed that the girl's beautiful, white, fish-like fingers had dug into the brand new shampoo bottle, slightly crushing it.
Seeing this, Tomoya begins to hastily explain that he has stepped on his sister's landmine.
"Oh, hey, don't get mad. I was just surprised at your good memory. Um, thank you for going out of your way to buy it for me."
"So... you didn't like it?"
"Of course she wouldn't mind. Ayane is very thoughtful. I'm sure she'll make a great wife in the future."
Tomoya assured his sister with a smile, who asked him the question while looking up.
(Although, the fact that he tends to be a bit emotionally unstable is a flaw.)
Whenever I say something that disregards Ayane's consideration like I did now, it often ends up shocking her more than necessary and upsetting her.
I don't really mind, though, because if I follow her she immediately smiles again.
"A good wife... Do you really think so, big brother?"
Even now, her cheeks are flushed and she is sporting a bright smile, as if her gloomy expression from earlier was a lie.
"I've never lied to Ayane."
"Yeah, that's right. Hehe, thank you, big brother ♪"
Ayane said this cheerfully and rubbed her nose against my neck like a puppy.
"Oi, oi, you're sticking too close... hmm"
I took a deep breath of the sweet scent wafting from her freshly washed brown hair, and for a moment I felt a surge of excitement run down my spine.
What's more, she was rubbing her body against me, so the shape of her breasts was touching my back.
Of course, the pressure wasn't strong enough to crush her breasts, but her skin felt smoother and more moist and clingy than the other parts of her body.
The boy, who is naturally ticklish and sensitive, finds himself almost lifting his hips.
It feels plump and a little hard, with occasional rubbing.
When he realized that it was undoubtedly the cherry-colored mammary glands he had glimpsed for just a moment earlier, the throbbing in his lower abdomen that he had been desperately trying to calm began to throb in time with his heartbeat.
"Mmm, the smell of my brother after he's just washed me. It's a little faint, but mixed with the smell of soap, it's still... ha, ha, hmm ♪"
I glanced at her from the side to make sure she hadn't noticed, and she brought her lips to the base of my neck, which she had so carefully massaged earlier, with her eyes narrowed and a strangely ecstatic look on her face.
Perhaps she has a fetish for smells, as for the past few years she has strangely started wanting to smell me, her brother.
It's not a very good habit, but when I see his happy face, I hesitate to stop.
(But, I've reached my limit!)
Being sniffed was one thing, but the feeling of the firm, tickling flesh stroking my back was unlikely to be endured for long.
It seemed like he was going to react in a way that he should never have in front of his sister.
"Ayane, please hurry up and wash your hair! If I take my time, I'll catch a cold, and I want to try out the shampoo you went to the trouble of buying for me."
"Yeah, that's true. Aya would be sad if Onii-chan caught a cold. Of course, I'll do my best to take care of him, but that's not the problem... hmm..."
Ayane seemed a little reluctant to leave, but she obediently let go of me.
"Then, close your eyes tightly so it doesn't get in your eyes, big brother."
"I know. Nice to meet you."
Smiling wryly at the words he always said to her when he washed her hair as a child, Tomoya closed his eyes as he was told.
(Oh dear... Even physical contact between siblings can be tricky at this age.)
Tomoya sighed deeply as he soaked in the feeling of his head being carefully washed with fingertips.
"Phew..."
I immerse myself in the bathtub up to my shoulders and groan out the fatigue of the day.
Ayane, who had been with us until just now, went out first.
Home bathtubs are not large enough for several people to soak in at the same time.
His sister, who knows everything about her brother, understands that Tomoya likes to relax alone like this and warm himself to the core.
"But even so... is it okay?"
She picked up a strand of wet hair that Ayane had thoroughly washed in her fingers and tilted her head.
She's still as clingy as ever, but it's gotten even worse since her parents went on a business trip overseas about three months ago, which would last just under a year.
Previously, he would barge into the bath once or twice a week, but recently he has been doing so almost every day.
"Maybe it's because I'm lonely without my father and stepmother..."
I remember the day before they left, I saw them off with a smile and said, "Don't worry about us at all. Aya will be fine with just you and your big brother for years to come!"
Was that an act to avoid worrying the two who were about to depart?
When I think about the feelings of my brave little sister, I feel that I have to support her as much as I can.
However...
"I'm a man too... ha, that's not good, that's not good!"
When I let my guard down, I remember the image of my sister as she was born burned into the back of my eyelids, the sweet and sour scent of her hair that I smelled up close, and the comfort of her nipples tickling my back.
The heat rising in his lower abdomen made him numb and tingly, and he no longer had any need to hold back, so his erect penis rose manly in the bathtub.
(Being attracted to my sister...that's the worst.)
Ayane just looks up to him as an older brother and relies on him.
The one thing we must absolutely avoid is betraying that.
"Maybe I should tell her to cut down on the physical contact a bit... But when I say that, Ayane looks really sad. To be honest, I feel lonely too..."
I wrack my brains for a while, struggling with this, but in the end I come to the usual conclusion that I have no choice but to maintain the status quo.
All I have to do is continue to be the "big brother." That's all.
Once I made that decision, the throbbing in my shaft naturally subsided.
"Well then, shall we go up?"
As I got out of the bathtub muttering, I saw Ayane's shadow through the door.
I remember her saying she would do the laundry after she got out of the bath.
I feel a little embarrassed to leave now, but it would be strange to be too conscious of it since we were in the room together just a moment ago.
After some deliberation, Tomoya decided to wrap a towel tightly around his waist before leaving.
"I'm coming up~ Ayane, thank you for always doing the laundry..."
When I opened the door, as expected, Ayane was standing in front of the washing machine in the dressing room.
Her long brown hair, which Tomoya had gently washed, was tied in a side ponytail with a pink scrunchie so that it fell over her left shoulder, and she wore a contrasting headband with a ribbon on the right side.
Her outfit was a frilly pink one-piece dress that matched the colors and atmosphere of the outfit. She likes cute clothes, so it's her favorite look.
Tomoya thinks that it looks a little too formal for loungewear, but it seems that she is particular about not wanting to look sloppy in front of her brother.
There's nothing particularly to say about that, but the question is what this little sister, who is a big brother's girl, has her face buried in ecstasy.
"That's my clothes..."
"Hmm, ha, ha, big brother's scent... a strong scent."
The complete school uniform that she had taken off before bathing and thrown into the laundry basket.
Ayane sniffed enthusiastically, sniffing the scent of the object she was holding in both hands.
"This smells better than your shirt. Especially... here..."
Muttering something under his breath, he brings his nose closer to the uniform blazer trousers rather than the shirt.
Tomoya watched as her breathing became heavy as she moved from the hem of her dress to her knees and then to the zippered area between her legs, and finally decided that he could no longer keep quiet any longer and spoke up.
"Ayane, what are you doing?!"
"Hmm, big brother?"
When I gently poked her head to warn her, she looked up with a puzzled expression, as if she didn't understand what her brother was angry about.
"Well, what's the point of smelling laundry? It'll just smell like sweat."
It was embarrassing to have him smell my neck directly in the bathroom, but this made me feel a different kind of shame, a tingling sensation down my spine.
However, when Ayane heard Tomoya say that, she simply tilted her head in confusion.
"I was just checking because it might need to be soaked. At the same time, I can also take care of your brother's health."
"Are you going to check it by smell?"
For the past few years, I've been asking her to do the laundry for me.
Is there a way to determine the level of dirt?
(Well, it's not impossible...maybe?)
I couldn't shake off my doubts, but just when I was starting to come to terms with it,
Ayane buried her face in the laundry pants she had picked up again, and her expression suddenly stiffened.
"...odor"
"Right? So, there's another way..."
"That's not my brother's scent..."
Without listening to Tomoya's voice, the side-tailed younger sister roughly reached into her trouser pocket and pulled out a white handkerchief with lace on it.
"This isn't your brother's, is it?"
"Eh... Ah!"
When the boy saw the thing in Ayane's hand, he suddenly remembered something.
"That's right, I completely forgot! That..."
"It's Sa-chan's, right? This milky smell... there's no doubt about it."
Before Tomoya could speak, Ayane lightly touched her nose to the handkerchief and frowned.
"Y-yes. You have a good nose..."
Surprised that it's possible to tell by smell, I nod back.
As Ayane said, it was something she had borrowed from Sayaka Hoshi, a girl the same age as Tomoya, whom she has always called "Sa-chan," and who lives next door to her, a childhood friend of hers for ten years.
"Why is Sa-chan's handkerchief in your pants, big brother?"
"No, that's..."
"Did you two do something behind Aya's back? That's so lonely..."
Without giving the boy any time to explain, his younger sister, with her deep indigo eyes half-white, thrusts the handkerchief she is holding in her right hand at him.
The cold whisper was a lie, like the sweet, cheerful voice from before.
Intimidated by the indescribable force, Tomoya instinctively takes a step back.
"Did you do something you can't tell Aya about? That's..."
"Oh no! I forgot to bring my handkerchief to school today. He said he had a spare, so I borrowed it."
"I see... Yeah, that sounds like something Sa-chan would do."
"Yeah. He's really attentive to those kinds of things."
Being a guy, I said I would wipe it on my pants for a day to get away with it, but my childhood friend, who was always so earnest, wouldn't allow it and instead forced me to lend it to him.
"No... I just want to look good in front of my brother."
"Hmm, did you say something? Actually, I'll have to get back to you about that tomorrow..."
Tomoya tries to take the handkerchief from his sister's hand, who is looking down and muttering something inaudible under her breath.
However, Ayane hid her hands behind her back as if to refuse.
"No! You have to wash it properly before returning it!!"
"Eh, ah... I see, that's right."
Tomoya suddenly realized what was going on when Ayane stood on tiptoe and glared at him.
As my sister said, it's polite to wash borrowed items before returning them.
"I need to soak it thoroughly and wash it thoroughly to completely remove my brother's scent. There's no way anyone other than Aya would smell my brother's scent. I can't allow that..."
"Um, then, is it okay to leave it to Ayane?"
Still clutching the handkerchief tightly, my sister whispered again in an inaudible voice.
It feels a bit strange, but if she's going to help me with the laundry then I guess I can leave it to her.
"Yeah, leave it to Aya. I'll wash it like new!"
"Oh, yeah..."
Ayane smiles with her eyes narrowed, still clutching the handkerchief.
Tomoya felt something strange stick in his mind and hesitated before he spoke.
"Well then... this is my fee♪"
The little sister with the side tail stood on her tiptoes and stretched her body again, leaning closer to me.
Her lips, as vibrant as pink rose petals, made a cute smooching sound as they came into contact with the boy's cheek.
Even though I've just gotten out of the bath and I'm still hot, I still feel hot.
Ayane smiles happily and unashamedly at her brother, whose eyes widen at the sudden attack.
"Hehe, I think it's more relaxing to smell it directly than on clothes. Big Brother's scent."
"No, I mean smelling, I just kissed you..."
"Will you do it too, Big Brother? Give Aya a kiss as a reward!"
My younger sister, in high spirits, stretched her back again and offered me her right cheek.
This kind of kiss as a greeting is also a favorite of my spoiled little sister.
"You, really..."
"You'll always be such a spoiled brat," Tomoya said, swallowing the rest of his words.
No matter what, I like being pampered like this too.
(Well... it's fine, it means they're siblings and get along well.)
Convincing himself of this, the brother who loved his sister gently pressed his lips against her soft, squishy cheek.