Chapter 58

I'm having my body wiped by a naughty nurse.

Even though I came without her even touching my crotch while still wearing pants, I was stripped completely naked and left standing in the living room.

Miyu is kneeling, wringing out a towel soaked in warm water, and carefully wiping my lower body.

She's wearing only the cosplay nurse uniform with absolutely no underwear underneath, it could practically be called a "nude nurse outfit."

Although every button from the collar down to her lower abdomen is properly fastened, the dress is far too small to contain her voluptuous bust, so glimpses of plump, bare skin peek out through the gaps between the buttons.

"Onii-chan's thing is always so energetic whenever we do something naughty, isn't it?"

My groin, warmed just enough, increases blood flow, and I stand there showing off my rock-hard erection to my lewd little nurse sister.

Even though her body is small, her breasts are outrageously voluminous. This nurse is my little sister, my lover, and probably some kind of succubus reincarnated.

"Onii-chan, you've already come twice. Once with Kanade-san and once with me, right?"

Miyu wipes from the tip of my shaft down to my perineum, carefully removing the sticky discomfort of saliva and semen centered around my genitals.

"Yeah. The last one especially, I shot a huge load."

From now on I'm allowed to ejaculate inside Miyu's body as much as I want.

And yet, that second accidental release used up quite a lot.

No matter how quickly my semen recovers, what's gone is gone.

"So the more you can dirty me up, the better, right?"

Miyu pulls open the gap at the chest of her nurse uniform, giving a peek at her deep cleavage.

Faced with such a direct question, I couldn't help but nod vigorously.

"Then shall we move to Onii-chan's room?"

Carrying the bucket of lukewarm water she'd used to wet the towel, Miyu leads me out of the living room, refills it with fresh warm water, and heads up the stairs.

I follow behind her. She enters my room first and closes the door.

I hesitate for a moment wondering if I should just open it, but since there's no further action from her, I knock and peek inside.

"Come in," Miyu's voice says, and I open the door, suddenly wrapped in a strangely tense atmosphere.

"O-ohhh……"

The moment I got home, my room had turned into a cosplay brothel.

First thing I notice is the unusual layered sheets on my bed.

Beside it, a small table holds three different plastic bottles, plus the bucket of warm water from earlier.

The room is dimly lit. Curtains closed, only warm-colored lighting illuminating the space.

Every few seconds a sweet scent drifts through my nostrils.

At the far end of the bed, an aroma humidifier is releasing fragrance, relaxing my body and somehow directing all the spare energy straight to my twitching penis.

In the center of the room, Miyu, dressed in her nurse cosplay, is sitting in formal seiza with three fingers on the floor, bowing deeply.

When she raises her head, her extremely tight uniform squeezes her bare breasts, making them jiggle and reveal even more cleavage.

Looking slightly embarrassed, she turns her palms upward and gestures toward the bed.

"I prepared… all of this…"

You're embarrassed now after preparing all of this?

That's exactly the kind of thing that's so cute and lovable about her.

"So… am I giving you a massage or something?"

"I'll be the one giving the massage. But you're free to touch me anywhere. And whenever you feel like coming, go ahead. Unlimited shots, unlimited time, special deluxe plan."

Way too good a deal. It's destroying both my wallet and my reason.

What the hell am I supposed to pay with in return?

From everything so far, it seems Miyu gets happier the more I ejaculate.

That's probably why she went to all this trouble to prepare.

For Miyu's sake too, I have to go all out today and leave not a single drop behind.

"Should I lie on the bed?"

"Please start face-down. You don't have to think about what to do. Just try to stay still until the very end. If you can't hold back anymore, feel free to do whatever you want."

Prompted, I lie face-down on the bed and let the sounds of Miyu preparing things wash over me.

The sheets are slightly thick and a bit firm, which actually prevents that clammy, cold feeling of sweat-soaked fabric. It's surprisingly pleasant.

"Those bottles? There are a few different kinds."

"Beauty oils. Ones I like for how they feel on skin, ones that improve circulation… and one that's… for naughty purposes."

"I see."

Miyu opens the bottles and arranges them in easy-reaching order, then spreads her legs wide and straddles me from above.

Her bare thighs touch my body, transmitting a seductive warmth.

"I've always wanted to try giving someone a massage."

She drapes a thick towel over my upper back, then starts pressing down from around my waist with both hands, putting her body weight into it.

Even an ordinary massage feels incredibly soothing when I know my little sister is doing her very best for me. Both heart and body relax and warm up.

"Have you been getting esthetic treatments yourself, Miyu?"

"Only when Haruka introduces me. I'm still a student so I only do it occasionally between proper work… but I've even been taken to high-class overseas resorts for it."

"Haruka really is something else…"

"In this world, connections are everything, Onii-chan."

Miyu mutters with a hint of disdain and presses a little harder.

"The person who took me on that Hokkaido trip owns a luxury hotel. Her husband works in international trade, super rich."

While talking, Miyu works her thumbs deeply into my entire back, then carefully kneads from my neck down my arms.

I was expecting ultra-erotic treatment from the start, but this is surprisingly professional.

"Who was the attendant on that trip?"

I'm on the verge of falling asleep from bliss, yet I keep asking questions about Miyu.

It would be a waste to let this supreme experience slip away while unconscious.

But strangely, even as my mind drifts, my erection never falters.

"If I had to describe her in one phrase… hmm…"

"Yeah?"

"A lolicon big-tits elf."

"Lolicon… big-tits… elf…"

The sudden combo of words instantly blows away my drowsiness.

Blonde, fair-skinned, huge breasts, loves kids. Is that accurate?

If so, no description could possibly be more precise.

"Right after getting married her husband's work got super busy and it looked like they'd end up sexless, so she basically threatened him that she'd cheat unless… after various twists and turns, he apparently gave permission as long as it was with Haruka."

"Having sex with a minor is already a massive problem in itself."

I can only imagine how insane those "various twists" were, but I know I'd never understand even if she explained.

"And now she's completely addicted to adult baby play while hiding that side of herself in daily life."

"Motherhood gone completely overboard, huh."

"The one being babied."

"Being babied…"

As expected, the junior high school world is incomprehensible.

That's the one thing I did understand clearly.

Trying to comprehend it is a losing battle.

"Alright. Your body should be warmed up now. From here I'll start using oil."

Miyu removes the towel, drips oil onto her palms, warms it with her body heat, then spreads it across my back.

"Ohh… this feels…"

Different from normal massage, different from straight lube.

Her hands glide over my skin yet still transmit definite friction and warmth.

Now that there's no towel barrier, arousal surges up the moment she touches me.

Since Miyu said she wanted to try giving a massage, I want to hold out as long as possible for her sake, but…

Blood circulation is clearly improving across my lightly sweating body, and my already oversized erection starts throbbing uncomfortably like legs that have been cramped in a narrow chair too long.

Miyu works from my back down to kneading the flesh of my buttocks.

Every part feels so good I could let her do it forever.

Still, the anticipation of when she'll finally touch my penis is maddening.

"Shall I massage the naughty parts now too?"

"Yeah… please."

The kind of casual exchange that's become natural between us.

I've come to recognize Miyu as my lover, yet having my little sister give me this kind of erotic massage still feels profoundly immoral.

" Ngh… right there…!"

The area Miyu starts loosening is from my perineum up around my anus.

A zone almost never touched even between lovers. Being caressed there brings both arousal and a sense of deep trust from Miyu.

"Massaging around the butt can give an effect similar to prostate stimulation, apparently."

Miyu instructs me to get on my knees while staying face-down, so I raise only my hips.

The humiliation of exposing my anus in such a pathetic posture awakens all the masochistic tendencies I've accumulated, fueling my desire even more.

"Nn… haa… Miyu… I'm already…!"

Pre-cum is already drooling steadily from the tip.

If this really mimics prostate stimulation, am I about to experience something close to a prostate-only ejaculation?

Being made to leak semen just from my little sister massaging my ass, what kind of shame play is this?

"If you're going to come, wait just a moment. I'll make it easier to go in."

Miyu dilutes some lube in warm water, scoops it in her palm, and coats my penis in long sticky strands.

She spreads it thoroughly from root to tip along the underside, then gives a few light strokes once it's well coated.

"Ah, ahh, ah, Miyu, Miyu…! Dangerous… wait…!"

Because my sensitivity was already so high, even that almost made me come.

She seems to understand and skillfully controls me to prevent an accidental finish while making sure every inch is slick.

Then Miyu slides in from below my crotch, spreads the gap around her underboob buttons, and presses my glans right against it.

"Try putting it in."

Breasts compressed tightly inside the uniform.

Flawless, glossy skin shining white from the rounded pressure.

I sink my hips forward and plunge into what feels like virgin territory. That perfect cleft.

"Uoh… so good…!!"

Incredible constriction.

Not as soft as a vagina, not as hard as a palm, that exquisite balance envelops my penis.

When I thrust, it bounces against the plump flesh orbs and gets milked; when I pull back, the elastic resistance sucks me upward.

Every time I move my hips, her swaying breasts deliver another wave of arousal.

"Does your little sister's tits feel good?"

Miyu lies back on the bed, looking up at me desperately thrusting with a cheeky smile.

Annoyed by that attitude, I grab both her hands and pin them down.

I'm going to pound her relentlessly and discipline this little devil.

"Ah… aaah………… I'm… cumming…!"

Even though I'm supposed to be the one on top of Miyu, I have no freedom at all.

I want to enjoy her breasts more.

I want to ravage her breasts more.

Screaming that internally over and over, my instinct, completely captivated by Miyu, sends thick semen surging through my tubes.

"Au… no… aaah…!!"

Miyu just watches as I move my hips on my own and writhe in pleasure.

I don't know what Miyu was thinking at the time, but judging from her mischievous smile, it was clear that she was enjoying herself.

Miyu quietly whispers "Go ahead and come" and deliberately shakes her breasts harder, accelerating the stimulation until the dam finally bursts under that tit pressure.

"Ahh… Miyu… I'm coming… Miyu!!"

Dopu, byururu, dokun, dopu, byu──.

Semen explodes inside her cleavage, slowly staining the nurse uniform.

An embarrassingly quick finish.

"…Warm."

Still pinned by my grip, Miyu looks down at her cum-filled chest.

"Did it feel good?"

She glances up at my face, checking.

That blunt, simple question somehow feels incredibly endearing.

"It felt amazing."

I release her hands.

As she pulls herself out from under me, she gives one last slurp, sucking the remaining semen off my shaft, then moves behind me again.

"Next, please turn on your back."

I obey and roll over.

Meanwhile Miyu squeezes her breasts together from both sides, enjoying the sticky sensation of the cum inside her cleavage.

"Thanks to the massage, you really let out a lot."

She presses hard, forcing white fluid to ooze out through the gaps in the uniform.

I don't know if she's doing it on purpose, but every gesture is insanely erotic.

Even though I just came, my cock is already standing tall again.

"Back to normal massage now."

Miyu reapplies oil and starts working from my chest down my stomach.

Fingers slide between each other, along my arms, across my abdomen, around my neck, meticulously loosening every muscle. Then her fingertips finally approach my nipples.

"Nn… haa… ugh…!"

I've heard nipples don't feel good until they're developed, but ever since Miyu first licked mine they've been incredibly sensitive.

Maybe my body is just naturally sensitive overall.

Or maybe Miyu is so erotic that I come too fast.

Fortunately I can keep going multiple times, so it works out somehow. But if we ever have proper sex, I can't be swapping condoms every thirty seconds. I need to learn to last longer.

"Onii-chan, lift your knees and spread them. I'll massage from the lower half now."

"Okay."

I follow instructions and raise my knees, spreading my legs.

Then I instantly realize what an embarrassing position this is and snap them closed again.

"Wait, Miyu. Can't you massage my thighs without me spreading like this…?"

"I can, but since Onii-chan has kinda M tendencies, I thought exposing you in a shameful position might make you produce even more."

"I'm happy you understand your brother so well, but hearing it said straight to my face is kinda complicated."

I somehow convince her to let me lower my legs, and she carefully kneads from my thighs down to my calves.

I've heard that training the muscles used for ejaculation can increase semen volume, so this massage might help me shoot even harder next time.

"Full body loosened up. From here we can move on to properly naughty stuff, is that okay?"

"Y-yeah. Kinda nervous though."

"Relax. I'll make you feel good."

Miyu straddles my waist, leans forward, and suddenly latches her mouth onto my nipple with a chu.

"Haa…! That… I love that…!"

At the same time, she slips both hands between my legs. Left hand gently stroking my balls, right hand jerking my shaft.

"O, ah… aaaah…!!"

The triple assault sends my sensitivity skyrocketing.

Miyu's adorable face is right there licking my chest, and realizing such a cute girl is touching my genitals is enough to make me want to explode.

"Ahh! Miyu… uaaah… Miyuuu! Haa… aa… ugh… guaa… aaaah!!"

"Nchu… chu… nfufu. You still moan like a girl."

Miyu looks up at my face while pumping faster.

Pushed to the very brink in seconds, I simply wait helplessly to be made to come.

But right before the peak, the pleasure torture suddenly stops.

Miyu pulls away from my chest, traces slow circles around my nipples with her middle fingers, then begins sliding her body downward.

"Today's main event starts now."

Her body moves away, bringing her face closer to my crotch.

Right.

Her handjob feels incredible, but today isn't about enjoying just that.

I can't end this until I've drenched this lewd nurse cosplay in my semen.

"Onii-chan's thing is twitching so cutely. But I'm not going to let you have my tits yet."

Just before fully moving down, Miyu presses her stomach against my penis and starts sliding back and forth, rubbing the entire underside with her belly.

Then, through the gap in the button, she took my penis completely into her mouth, and rubbed it against her stomach, stroking the entire underside of my penis.

"Miyu… oaaah aaa… that's amazing… aaa… aaah!!"

Her soft belly presses my cock.

Rocking her whole body, making those heavy breasts sway, Miyu looks down with delight at my face twisted in pleasure.

Overwhelmed by her cuteness, my already hypersensitive cock registers even the dip of her navel.

"Ah, ah, sorry! I'm gonna come!!"

There wasn't even time to warn her properly.

I helplessly lose to the surprise belly rub and spurt thick ropes across Miyu's stomach.

But the daze after ejaculation was short-lived.

This time, Miyu finally moves fully between my legs and envelops my cock completely with her soft breast flesh.

Then she starts bouncing her tits up and down nonstop, giving no mercy to my hyper-sensitive post-orgasm shaft.

"U, ah… agu, aa… Miyuu… aaaah! Aaaaaahhh!!"

It's nothing short of ravishment.

Completely powerless against Miyu's full-body sexual assault, I can only writhe.

Even after multiple ejaculations, her obscene body relentlessly milks me without question.

"W-wait, wait… ah…!!"

"You're the one moving your hips, so what are you even saying?"

Hearing that, I finally realize.

Without noticing, my hips had started moving in sync with her movements, trying to plunge deeper into that heavenly tit tunnel.

I thought I was just riding out the pleasure, but in reality I was greedily seeking more breast pressure.

"When I do this you can see the tip a little."

Miyu undoes one button, letting the upper part of the cleavage open.

My glans peeks in and out, pushing white fluid upward.

"Looks like we don't need more lube anymore."

She scoops some of the semen with her finger and licks it off.

The cum already coating her chest has mixed with the shaft, providing more than enough slickness without additional lube.

"Aa, aua… Miyu… feels so good…!!"

Grabbing her arms, I start thrusting into her tits like I'm having sex in cowgirl position.

Miyu watches me with a teasing gaze.

"Even though your little sister is moving for you, you're just using me to get yourself off."

At those words, my hips freeze.

I had been moving desperately after all the edging, but this was basically just masturbating with her breasts.

"Haa… a… s-sorry…"

"I'm happy you're getting this excited, though."

Miyu finally lifts my knees, squeezes my cock between her breasts again, and starts sliding back and forth.

Propping herself with one hand, she gently strokes the surface of my scrotum with the other.

"Oaa… o… oooh… amazing…!"

"You like having your balls petted, don't you, Onii-chan?"

My highly sensitive skin makes even scrotum caresses feel mind-blowing.

Maybe even more than shaft stimulation.

"Haa… aaa… Miyu's tits… so soft…"

Heaven. Tits churning around my cock while my balls are lovingly stroked.

My brain is floating in a milky sea where pleasure has liquefied.

But then I notice something.

More than the titjob itself, what truly ignites me is the sight I catch when I glance sideways.

It is Miyu's lower body that can be seen when I look away to the side.

As she lay on the bed, Miyu held my cock between her breasts and stroked my crotch, it was no wonder she was in an awkward position.

Miyu has her legs spread wide like a frog, earnestly rocking back and forth, shaking her breasts.

"Miyu… aaa… Miyu…!!"

The sibling affection I felt earlier surges again.

My usually shy little sister is exposing herself so shamefully just to give me a titjob.

Seeing that image replay in my mind like an overhead camera, complex love and lust intertwine and explode instantly.

"Aa… a… aa…!"

Miyu's G-cup mounds, sealed inside the nurse uniform, slickly milk me while she massages my balls, and at her urging I helplessly release again.

I ejaculate inside her cleavage like I'm wetting myself, staring dazedly as white fluid spurts from the tip protruding above her breasts.

"Sorry… I'm… still coming…"

"I know."

After a while Miyu stops moving, thinks for a moment, then tells me to lift my hips.

I obey. She sits up into seiza and spreads her knees so my hips can rest there.

If Miyu had a penis, it would be perfectly positioned to enter my ass.

In this position her heavy breasts rest directly on my groin.

Even without extra pressure, their sheer density feels overwhelming. I can't help but admire how she maintains such volume.

Miyu grabs her own breasts, parts the uniform without warning, and slips my cock back inside, then kneads it through the flesh with both hands.

"Ooooh… ah, seriously, right after coming…!!"

"Does it feel good?"

"It feels… so… goooood…!!"

"Seems like this really is the strongest stimulation for you."

Her breasts slap heavily against my groin, the weight alone vividly reminds me I'm being given a titjob.

But apparently she was just experimenting; the intense pleasure assault finally pauses.

"Haa… haa… I'm gonna die…"

"But you're getting used to consecutive orgasms now, aren't you?"

Miyu traces a finger along my softening shaft, enjoying watching it disappear into her cleavage.

"You react really strongly when I touch around your crotch, Onii-chan."

"Well… that's the most sensitive skin, after all."

"Should I play with your balls more when I give blowjobs too?"

"Hmm… of course having them touched while being sucked feels good, but sometimes I just want to focus on the blowjob itself. So maybe… licking the balls first, then moving up, that might be my favorite."

Simultaneous stimulation doesn't always multiply pleasure.

Especially since I love blowjobs so much, I want Miyu to focus entirely on sucking me, nothing else on her mind.

But ball-licking… it's inherently dirty.

And having a pure girl like Miyu do it makes it feel extraordinarily good.

"So Onii-chan likes having his balls licked?"

"Y-yeah."

Being asked so directly makes me feel a bit guilty.

And aroused.

"A titjob and ball licking at the same time would probably be the best."

"While doing a titjob…? Hmm… maybe if I face the other way…"

Miyu genuinely tries to figure out how to lick my balls while giving the titjob.

But that would mean turning around, and since she's not wearing panties, her crotch would be fully exposed to me.

She obviously realizes that too. She turns, but hesitates to straddle me.

"Is it… bothering you after all?"

"I really can't show it."

Even as lovers, she's still shy about having her genitals seen.

If I begged hard enough she'd probably let me now, but I don't want to lose this mysterious boundary of embarrassment.

"Then let's just stay pressed close like this."

Miyu straddles my chest instead, sits flat without raising her knees, and presses our bodies tightly together.

Sure, this way her most private parts aren't directly visible, but they're still partially visible. Her pure-white peach-like buttocks and the fully bloomed, pale pink anus are right in my face, making me harden again.

How many older brothers get hard seeing their little sister's genitals after coming five times?

"They're in the way… my boobs are seriously blocking… these things are such a hassle…"

If she just leaned over normally she could probably lick my balls while paizuri-ing, but with our bodies pressed so tightly her neck can't bend far enough.

"Can you lift your hips a bit?"

"Okay."

I push my hips up, actively thrusting into her breasts.

"Aa… Miyu's tits… really grip tight…"

I slowly rock back and forth, and her tongue finally laps at my scrotum, forcing another embarrassing moan from me.

With Miyu's ass right in front of me, I suddenly realize that in this position she can probably see my anus too, the sheer absurdity of what we're doing as siblings fills me with inexplicable shame.

"Chu… lero…"

"Haa… your tits and your tongue… really… feels incredible…"

While gazing at Miyu's faint-colored secret, I savor her devoted service.

For someone who's supposedly done so much with Haruka, Miyu's genital area is surprisingly pristine.

The slit is perfectly closed, no trace of hair ever having grown.

Looking only at her lower half, you'd think you were doing something with an elementary schooler.

Even though she has G-cups.

And her anus is even more charming than I imagined. Such a light, delicate color.

Lost in the unknown temptation, I gently stroke her anus with a fingertip.

"Hinyaa!?"

She lets out a cat-like yelp and her whole body jolts.

So cute I almost want to ravish her on the spot, but I'm pretty sure I'd get scolded for that.

"Mou… you surprised me and made me make a weird sound…"

Her tongue is slightly lisped from the shock, but the embarrassment quickly fades.

In the past this definitely would have earned punishment, proof that our relationship really has progressed.

I'm happy I can feel that so concretely.

"You probably already know this, Miyu, but guys feel better when the girl is feeling good too."

"Y-yeah… probably."

Miyu teases the base of my cock still buried in her cleavage.

Men try to please women out of affection, sure, but mostly because seeing a girl in pleasure turns them on.

"So… I want to lick you there."

"That's not allowed."

Flat-out rejected.

But she seems to feel a little bad about always saying no, because her tone is softer than usual.

"You can touch my body as much as you want, though."

Finally. Explicit permission to pleasure her.

Even though "touching is free" was stated from the beginning, having her clearly say "you can make me feel good" is huge.

It's still distant phrasing, but coming from Miyu, it's something she'd never offer anyone else. Pure joy wells up.

"Then… I'll take you up on that…"

I first reach for her buttocks.

Smooth as snow, velvety, sticking softly to my palm.

Every part has just the right amount of fat. I can tell just by looking how squishy and real her body feels.

"U… haa… uu…"

Miyu trembles faintly while still licking my balls.

Apparently her whole body is developed and every spot is sensitive.

Especially her inner thighs.

"Ah………… hau… naa…!"

She writhes as if her pussy were being directly stimulated.

She used to warn me not to touch carelessly and now I understand why. Even light stroking makes her moan like this.

"Miyu, lift your hips."

"Fweh… ah… you can't lick there, okay…?"

"I'm not going to lick there. But look, you're dripping so much."

The obscene drops trailing down her thighs are something I once desperately craved.

Having it right in front of me like this. No way I can hold back.

When I try to lift her hips, she verbally resists but still raises her ass for me.

I run my tongue along those dripping inner thighs.

"Ah, hiyaaan… aaa… hyorameee…!"

The moment I lick her thighs, Miyu starts moaning as violently as if a vibrator were thrusting inside her.

Fresh nectar wells up the instant I lick it away. Like a desert wanderer finding an oasis, I devour her thighs.

"Hya, ihyaa… nn… onii… hyan… uuu… nN!!"

"Chuu… chuba… haa… Miyu… so delicious… rero… churu…!"

Hearing Miyu's sweet cries, my renewed erection thrusts messily into her cum-soaked breasts.

"Ah, ah, aaa… onii… chan… no more, hau… nn──N!!"

Miyu trembles violently.

Just from thigh-licking, she came.

I'm at my limit too.

"Miyu… I'm coming… Miyu… Miyuu…!"

"Da, dahhee… oniihyan… hau… naa… raihee… nnn!!"

Dobyu, byu, byururu, byuku, byuru──!!

Semen surges again and again.

The force doesn't weaken; it keeps pouring into her uniform.

"Haa… haa… uu…"

Miyu collapses, panting.

I might have gone overboard licking her.

Is she okay?

"…Pervert."

Propping herself on the bed, Miyu looks at me. Her eye shape always makes her gaze sharp, but right now there's no real glare.

Cum is dripping in thick drops from her overfilled cleavage, being called a pervert in this state is hardly fair.

Miyu licks the remaining semen off my softening cock again, and we face each other on the bed.

Sitting cross-legged, Miyu tugs the hem of her ultra-short nurse dress, trying to cover her lower half.

"Was licking too much after all?"

She doesn't seem angry, but I check anyway.

After a hesitant pause, Miyu finally speaks softly.

"Having you see me come… is embarrassing…"

Her true feelings, whispered almost inaudibly.

She's almost always been the one making others come until now.

I already knew, but hearing it confirmed…

"You don't like being seen naked either, Miyu?"

She'll bathe with me, but she still resists letting me see her privates.

"Because… look. I'm like this."

Miyu strokes her completely smooth lower abdomen.

"You think it's childish too, right?"

She's self-conscious about her hairless, tightly closed slit.

Considering how much she loves lolita-style clothing, I would have thought she'd welcome it.

"You're into lolita cosplay, so isn't smooth better? Isn't Haruka like that too?"

"Haruka is lolita all over, so it's fine. But I'm only half-loli, my chest and up are too adult. This unbalanced body feels embarrassing to show."

Miyu originally had a complex about her large breasts.

If she were fully lolita like Haruka, or fully mature like Yamamoto-san, maybe she could be more confident naked.

Miyu's face and overall build are very youthful, while her breasts and aura are mature.

I love that exact combination, but forcing compliments on someone's complex doesn't help.

"Honestly… yeah, I did think it looked childish."

"See?"

"But, and this is just my personal opinion, I love your smooth look along with everything else about your naked body."

"Haa, yes."

"And of course I love your breasts too. So I love all of your body."

"…Th-thank you."

Whether embarrassed or withdrawn, Miyu looks away toward the floor.

Either way, I don't get any negative feel from her expression. I think her favorability didn't drop.

She probably already knew, but wording matters.

When I calmly and logically lay out my perversion, she has no choice but to accept it as sincere.

At least in our relationship, that's effective, something I've learned through all our interactions.

"By the way… you really did it with Haruka, right?"

"Yeah… why?"

"You did a lot with Haruka, but your color is still light and the shape hasn't changed at all."

"Probably because… the kind of sex I have with Haruka is different from what you imagine."

Is it possible that the way lesbian sex is done is different from what I imagine?

Different how? Girl-on-girl sex is basically fingering, licking, tribbing to finish, that's it, right?

Especially with Haruka.

"Don't you use dildos or strap-ons?"

"Almost never. Even when we use vibrators, it's just thin finger-sized ones or small clit-focused ones."

That's unexpected.

With how developed she is, I assumed they went pretty hard.

"You already know this, but… I like wearing cute clothes, right?"

Miyu checks, as if confirming.

By "cute clothes" she means outfits that make her abnormally aroused when she sees herself in lolita/cosplay while having sex.

I nod, already understanding, and urge her to continue.

"That's also why I borrow clothes from Haruka. And when it comes to sex… the main focus is that."

Miyu mumbles, dodging the words.

Something hard to say?

But she doesn't seem unwilling to talk.

"You have sex in order to rent them, right?"

"Yeah. Depending on the price of the outfit she lends, I have to come a certain number of times."

"Hoh."

It feels slightly different from what I heard before.

But maybe it's just more specific?

"When I want to borrow something, Haruka puts me in her chosen outfit, locks my wrists in hanging handcuffs, makes me stand on an unstable platform, and then torments me endlessly while forcing me to watch my own writhing figure in a mirror right in front of me."

"That's way more extreme than I imagined."

And since she only gets to borrow if she comes.

What kind of emotions does Miyu go through while being forced to orgasm by Haruka?

"The sex itself is mostly just… endless breast caressing, thigh licking, things like that. Even inside, it's only pinpoint, slow, teasing stimulation of sensitive spots, almost no hard thrusting like regular sex."

I see.

Since Miyu gets off on seeing her own depraved appearance, strong stimulation isn't necessary.

In fact, slow, gradual teasing while she can watch herself lose control is probably more effective for her.

"Also, genital shape and color are mostly genetic. Even virgins can have dark color or protruding labia. Sex just makes it more pronounced."

"Didn't know that."

I used to think all unused ones were perfectly tight, but thinking about it, that's unrealistic.

Bodies mature. Genitals too.

"One more important thing."

"Yeah, what?"

Miyu lifts her nurse-uniform-wrapped breast bag, emphasizing it.

"This time I let you use my tits because you said fat gets softer if you knead it."

"Yeah, I did say that."

I'm not an expert, but logically it makes sense.

Apparently.

"If they reach H-cup, no more titjob for you."

"Wha—!?"

It felt like a hammer to the skull. I grab Miyu's shoulders hard.

"Please… anything but that…!"

Losing Miyu's tits would be like losing half my life.

No way I can accept that.

"Fwa, ah, O-Onii-cha…"

"Of course your body comes first. If it's bad for you I have no right to be selfish… but still, we shouldn't just wait for them to get bigger. We should research ways to keep them from growing, or even reduce them, try everything possible. Trial and error. Then we can enjoy titjobs with peace of mind."

After I pour out everything, Miyu stares wide-eyed, frozen.

"Sorry."

"N-no… I think you're right, Onii-chan."

I release her. She exhales deeply, steadying her breathing.

I take a deep breath too, calming down.

"Um… Onii-chan. I never said this before, so… first time saying it now."

"What?"

"When it's just the two of us at home, my alert mode turns off. So… sudden scares really startle me. Please be a little gentler."

"My bad. Sorry."

"No, it's fine."

Miyu acts like a small animal when she's relaxed at home.

I'll be more careful from now on.

"By the way, what happens when alert mode is on?"

"I can tell from footsteps in the hallway whether someone is coming toward me specifically."

"What kind of world did you grow up in…?"

Probably fended off constant advances from both boys and girls since childhood, developing all sorts of defensive skills.

I'll just accept that explanation and move on.

"Are we done with sex now?"

Miyu surveys the semen-stained nurse uniform.

I feel like I've enjoyed it about as much as the effort she put into modifying the outfit, but I still haven't had the main course.

"I really wanted to try putting it in from the front…"

Standing, thrusting straight into her cleavage, that feels like true titjob completion.

I can't say I've enjoyed a titjob without doing this.

"Can you still go, Onii-chan?"

"If I try, probably."

No matter how irresistible Miyu's commands are, mood matters.

Right now we're in gentle pillow-talk mode; jumping straight back in would be hard.

A break would help, but Miyu is covered head to toe in cum, no way she can sleep like this.

"Front means you'd stand and move yourself, right?"

"Yeah."

"Then… want to tie me up a little?"

"Really!?"

"Just lightly. Wrists only."

What an understanding little sister.

My sex drive reignites instantly.

Miyu gets off the bed, spreads a towel on the floor, and kneels there.

While she waits, I look for something to bind her with. There's nothing suitable, so I compromise with my school tie.

Miyu reluctantly accepts even though it'll wrinkle.

"…Is this okay?"

"You did it perfectly. I can't get out of this."

I asked Miyu to teach me how to tie her hands, and then I put both of her hands behind her back and tied them up.

From the front, the sight is overwhelmingly erotic.

A tiny loli nurse, covered in semen, kneeling with her hands bound behind her back.

Having her arms tied back pushes her chest out even more, practically screaming "please violate me here."

"So erotic I'm hard again."

"I can see that."

The ejaculation urge I thought was exhausted starts bubbling up again.

I want to dirty Miyu even more.

"Miyu, I'm putting it in."

Standing in front of her, I slide my cock into the button gap in the center of her chest, inserting just the glans first.

Looking down, her nurse cap stays perfectly in place thanks to the pins, and her face is so close.

While those big, round eyes stare up at me, I push into a hole that has nothing to do with reproduction.

What does it feel like for her, having a penis inserted into her own breasts?

Does it give her a tension similar to vaginal insertion?

From what Haruka said, Miyu has never taken anything thick before.

Which is tighter, this nurse-uniform compressed tit tunnel, or Miyu's actual vagina?

I kinda want to compare the two holes.

But that would probably embarrass Miyu again.

Everything this sister does is just too erotic.

Shit.

I might come before even getting halfway in.

"…Hm? Not going in?"

"Ah, yeah. Going in. Just… a little break."

"I see."

Miyu speaks calmly, then glances at my frozen hips.

She seems to accept it, but can't help pointing it out.

"Kinda quick, aren't you?"

"Sorry."

"It's fine."

As expected, I was scolded for getting too excited.

Can't be helped when my little sister is this erotic.

I'm innocent.

"Alright… again."

Once calmed, I push all the way in with a zupu.

The mental image of a middle-school girl's breasts completely swallowing my cock is so obscene I feel like I'll come just from the sight.

I try to avoid accidental orgasm by moving in short, jerky thrusts while Miyu simply watches.

No verbal teasing. Just dispassionately observing her own breasts being violated.

Under that dry gaze, I try to empty my mind and continue pistoning.

"N… fuu………… ugh…"

My voice naturally quiets; only wet nyucha nyucha sounds fill the room.

Then our eyes meet.

Even at rest, Miyu's slightly upturned eyes give her a feisty look.

The thought of such a girl being bound and forced into lewd clothing accelerates my desire without any faster movement.

"If I say I want to come already… will you get mad…?"

"I won't. I'll just think 'wow, Onii-chan really loves my body'."

"It's true, no one else's body could make me this excited."

"But we'll work on the premature thing from now on, okay?"

"Y-yes…"

We can have sex many more times.

Knowing that, there's no need to rush.

During the conversation, I gradually get used to the tit pressure.

While stirring semen with my cock, the desire to mark Miyu more strongly with my scent grows, so I lift her breasts and thrust harder.

Unintentionally, my finger grazes her nipple.

"Higyuu—!?"

Miyu's body arches, a stifled moan escaping.

Seeing the usually composed Miyu suddenly cry out from pleasure, embarrassed, makes me want to see more, so I tease her now-stiffened nipple with the lightest possible touch.

"Hya………… u… tsu!"

Miyu desperately tries to suppress her voice.

Until now I've always overwhelmed her quickly, but watching her struggle to hide her shameful reactions is insanely hot.

She never wants to moan.

Her body is simply too sensitive. Strong stimulation forces sound out.

She doesn't want anyone, even her lover, to hear her lewd voice.

So she holds back as long as the stimulation allows.

"N… a… hi… N…!!"

Nipple teased, breathing ragged, Miyu fights to keep her face from twisting in pleasure.

With her arms bound she can't deflect the sensation; her body jerks, mouth opens, and guttural moans finally spill out.

"Miyu… no good… too erotic… I'm gonna come…!"

"Haa… fuuu… agu………… I'm… c-coming…!!"

"Aaah… Miyu… coming…!!"

"Hyaa... Me... too...!!"

Dopu, byururu, byubu, dopun, pyu, byuru──!!

Miyu's compressed breasts receive every shot at the root.

After pouring so much, white slime starts oozing out like post-creampie pussy.

As I ejaculate, Miyu climaxes too, the pulsing muscles push more semen outward.

"Haa… haa… fhaa…"

Miyu stares blankly, out of breath.

Coming from thigh licking, coming from nipple play, how erotic is this body?

I want to torment her more.

"Onii-chan… tying my hands and doing that is cheating…"

"The first one was an accident. But you were just too cute, I couldn't hold back."

"Muu. Siscon, premature, sex-crazed idiot."

"You're not one to talk about coming quickly."

"U… g-girls can come lots of times so it's fine…"

Miyu puffs her cheeks and looks away.

Then rubs her thighs together, glances up at me shyly.

"Are you… done coming?"

"Yeah. I'm satisfied."

"I see. Good."

She says that, but doesn't seem calm at all.

"You came a lot."

She tugs awkwardly at the tie binding her wrists, mumbling.

"Can you… untie me now?"

"Sure. You okay?"

I reach for the knot, watching her reaction.

After a long pause, Miyu finally whispers so softly I can barely tell she's speaking.

"…I got horny."

Right when I thought sex was over and we'd shot everything, Miyu hits her sexual peak.

She probably asked to be untied so she could finish alone.

But leaving my lover frustrated like that would make me a failure as a man.

"I'll be gentle so it doesn't hurt."

I slide my hand between her legs and rest a finger on her clitoral hood.

"Fweh… i-it's okay! I'll do it myself! At least… let my arms… shi… fuhyaa!?"

Following what she once taught me, I avoid direct contact and press rhythmically but firmly on the hood.

No grinding against bone. Just steady, simple stimulation so she can find her own sweet spot.

"Hiyaa… a… r-rame, aaa… oniihya… a… higyu… nnn!!"

Miyu trembles violently, moaning openly, but I've been taught this reaction means she's feeling good.

Even as her knees buckle, she lifts her hips, losing control and moving instinctively. I fine-tune finger position and keep pressing her clit.

Her writhing, moaning figure is unbearably cute and lovable.

The way she leaks like she's wetting herself is adorable.

Her semen-drenched breasts, pink nurse cap swaying, eyes rolling back, everything about her is unbearably cute.

As she starts pulling her hips away from the clit stimulation, my gaze is drawn to the roundness of her ass.

I remember how she yelped when I touched her anus earlier.

"Miyu, you're so cute. Feel even better."

I scoop a thick glob of semen from between her breasts with two fingers.

I hold it in front of her face, letting it string between my fingers, then smear it over her anus.

"Hyaaa!! T-that's nooot…!! O-onii… nnya… hikyu… NN… a, a… hiyaaa…!!"

Clit stimulated from the front, semen rubbed into her anus from behind, Miyu frantically struggles against the inescapable tie, shaking with pleasure.

"Aauu… nn…! My a-ass… semen… nuchaa hiyaaa…!!"

Now on her knees, she desperately rocks her hips like she's riding cock, trying to escape both pleasures.

"Hya, coming… c-coming… higyuu…!!"

Miyu throws her head back and climaxes violently, then keeps coming nonstop.

She screams like an animal until I finally stop my fingers; even after I release her she continues twitching for a while before going completely limp.

"Miyu. You okay?"

When I call out, Miyu looks at me with unfocused eyes.

Her consciousness seems intact. She breathes deeply, occasionally letting out throaty gasps like a prisoner after torture.

While she's recovering I try to untie the knot, but she pulled so hard it's stuck.

As I struggle, Miyu's breathing gradually returns to normal, strength returning.

"Uu… to be humiliated like this…"

Tearful eyes, complaining.

She doesn't seem angry. Guess I did it right.

"I'm all sticky everywhere…"

"I might have overdone it."

"I always wonder, where do you even store this much semen?"

"No idea."

Honestly, hearing her erotic voice so much has me horny again.

But saying that now would probably get me yelled at.

"By the way… what's it like inside the dress?"

"Who knows. Want to unbutton it?"

"Yeah."

I give up on the knot for now and move in front of her.

Miyu sits up cooperatively; I start undoing buttons from the top.

"Th-this is… really tight."

"It was pretty hard to breathe, so please praise me."

"I'll pamper you like crazy after we shower."

"Promise?"

When I undo the second button. Boing, her breasts burst out cartoon-style.

I open it down to her stomach. The sheer amount of white covering her is staggering. I swallow hard.

"It's insanely obscene."

"That bad?"

"Yeah. From the front… it's an incredibly dirty sight."

"I see…"

No way I'll see Miyu this thoroughly cum-drenched again.

Might as well let her know what it looks like.

"My phone's still downstairs. I'll grab your camera."

"Eh, ah, okay."

Miyu seems to know what's coming and waits quietly while I fetch my DSLR.

But when I actually point the lens at her, shame overwhelms her and she glares daggers.

Being glared at by a defeated orc-slaying princess knight while covered in cum only turns me on more.

Also, taking pictures of her like this reignites the arousal I thought was spent.

"Miyu, sorry. This really is the last one."

She sighs in resignation but agrees, probably because she noticed I got hard again during the shoot.

How should I finish? Rare chance, only one choice.

"Sorry, I know almost nothing will come out anymore. Just a little is fine."

"Thank me for humoring your idiot sex drive, Onii-chan."

Grateful to Miyu, I grip my shaft.

I haven't masturbated in forever.

Always having cute girls do it for me has warped my sex life.

My cock feels noticeably heavier in my hand.

It's not my imagination, it really has gotten bigger.

I wonder if Miyu noticed.

She said she didn't want it to get any bigger.

But how could it not grow when presented with tits this lewd?

Right now in front of me: hands bound behind her, breasts exposed, micro-skirt nurse outfit.

Combined with her youthful body and cute long hair in twin tails, the gap-moe is overflowing.

"Haa… haa… Miyu… being glared at like that… makes me… want to come…"

"Your fetish is already beyond saving, Onii-chan."

Miyu's cold stare and flat tone.

The venom in her words only makes my right hand stroke faster.

"A, aaah… Miyu… coming…!"

"Go ahead. Cover me."

"Ugh… ugua… aaa… coming, coming…!!"

Byuru, byuru, semen arcs toward her chest.

A visible amount lands, dripping from breasts down her stomach.

"Felt… so good…"

"Good job."

While I'm dizzy from over-ejaculation, Miyu twists closer despite bound hands.

Then, still tied, she takes my cock into her mouth.

"M-Miyu…"

"Hamu… muchu… juru…"

Head bobbing back and forth with hands behind her back.

She takes me deep once, then sucks out saliva and remaining semen as she pulls off.

"There. Clean-up finished."

"Thank you. That was incredible."

Finally I manage to untie the knot and free her wrists.

It's badly wrinkled now.

Every time I see those wrinkles at school I'll remember today. My school life might be in danger.

"You're throwing that dress away, right?"

"Hmm… it could be washed, but… with all the modifications, it'd probably fall apart."

"I see. Oh well."

It was cheap cosplay to begin with.

Repeating the same gimmick would feel stale anyway.

Miyu takes off the nurse uniform and throws it into a thick trash bag she'd prepared.

She also has old towels ready; we wipe up the semen and room mess, then bag those too.

We open the windows, keeping curtains closed, for ventilation, run the bath, and decide to soak together after cleaning up.

Even though Miyu hates being seen naked, she has no problem bathing together. That makes me happy.

After tidying the room we head straight to the tub.

We wash each other thoroughly, then settle in. Me behind, arms around her, same as always.

This position calms me down; only now does it really sink in that sex is over.

"Do you hate doing other cosplays, Miyu?"

"I'd consider it if you really want something. Got any ideas?"

"No… I was just thinking this might be the last time we can do a tight-clothes titjob."

"Ah, that. Hmm."

This time it was a cheap outfit prepared specifically to be dirtied, but her regular clothes are off-limits.

"Anything that squeezes the chest might work for a regular titjob, but for front insertion it has to be something like today's nurse dress, or one specifically open at the chest."

"I see. That feels… different somehow."

When the outfit is obviously designed for "insert here," half the appeal disappears.

Miyu seems to understand that too and doesn't push it.

"Oh, right, I was about to throw away an old bra anyway. It's the super supportive kind, so maybe you could still get in from the front."

An unexpected piece of information that Miyu let slip.

Lightning strikes down my spine at Miyu's casual bombshell.

"Genius."

"I didn't say I'd do it."

"We have to. We must."

"If they get smaller again I might reuse it."

"But you have other bras that are just worn out, right?"

"J-just one…"

"Then it's decided."

Miyu's brilliant idea revives my titjob career.

Even lewdness requires intelligence.

"Eh, we're doing it? Bra titjob is way too embarrassing!"

"I think it's less embarrassing than the super-lewd nurse outfit just now."

"Doing lewd things in lewd-purpose clothing is normal."

"Fair point."

But too much intelligence can be trouble.

I feel like I'd lose a verbal battle.

"Well… if I feel like it."

"For you, Miyu, I'd become both north wind and sun."

"Impure motive, but I'll praise the effort."

"Thanks. You worked so hard too. I'm really happy. You're the best lover. I mean that even more now."

"Keep thinking that forever."

"I will."

I tighten my arms around her waist; Miyu lays her small hand over mine.

"Can we prevent any more lovesickness?"

"Probably not after this."

"Good. Just a little more and it'll all be over, so… please take care of me."

"Yeah. I know."

Our happy time together.

As long as we're both happy, that's enough, or so I think.

But for this perfectionist little sister, any impurity prevents her from fully relaxing and flirting.

So I support her in removing it.

I think that's part of why Miyu fell for me.

"By the way, Onii-chan."

"Hm? What?"

"When are you finally going to take my virginity?"

"Eh! Ah, right!!"

Between the offline meetup, being dragged around by Yuka and Haruka, and even Yamamoto-san messing with me, I'd completely forgotten.

Preparing for our future happiness and actually moving our relationship forward are separate matters.

"I mean… I think I've more or less understood the things I need to be careful about."

"Really?"

"Yeah. I've properly considered your constitution. So… moderation is important. I get that."

"Mm-hmm."

Miyu leans against the tub edge, twists at the waist, and peers sideways into my eyes.

We stare at each other in silence for a while. Then she turns forward again and wraps my arms around her stomach.

"You have to be the one to invite me, Onii-chan."

"Does that mean… I passed? Did that just now count?"

"Half of it was your answer. That was enough. The other half… I decided to trust you."

She just casually throws it at me.

But being trusted means I managed to do something for Miyu, right?

"I'll make it a great memory."

"Thanks. But if you make me wait days while you 'prepare' by abstaining, I'll run away full speed."

"I-I got it. I won't do that."

After coming this much inside her, even with a condom, it'd probably be catastrophic.

I'll build up partway during foreplay and then invite her.

"Miyu."

"Yes?"

I pull back slightly and tilt my head around.

She notices and turns toward me.

"Nn…"

Our lips meet, naturally, softly.

I slowly pull away.

After a brief pause Miyu opens her eyes, smiles gently, and presses her index finger to my lips.

"We need to practice kissing more, don't we?"

In a good mood, Miyu takes my hand, pulls my arm aside, and hugs herself to my chest.

Kissing practice is postponed, but seeing her adorable sleepy face is so cute that I just keep stroking her head, savoring pure happiness.