How Using My Oppai Skill to Enlarge My Sister’s Breasts Led to Building a Harem - Chapter 23
Chapter 23
I’ve taken on the task of treating Nozomi-chan, a blind girl, to restore her eyesight. After school, she comes straight to my clinic and chats with Ayaka-san.
※
“Sensei, you coming soon?”
“He’ll be here shortly. Sensei’s a high schooler, so he has more studies than you, Nozomi-chan.”
Though blind, Nozomi-chan loves to talk, perhaps because of her condition.
“Ayaka-oneechan, you like sensei, don’t you?”
“Ehh… N-No way!”
“Liar~”
Nozomi giggles playfully.
“Sensei’s so nice, right?”
“Yes… He’s truly kind.”
Reflecting on her past, Ayaka begins sharing with Nozomi.
“If I hadn’t met sensei, I might not be here now.”
“Eh?”
Ayaka recounts her story, and Nozomi listens in awe, exclaiming, “That’s amazing!”
After finishing, Nozomi murmurs, “He’s that incredible…”
Then Ayaka asks, “Nozomi-chan, how did you get referred here?”
“Well, my mom’s a nurse at a hospital—”
To summarize: Nozomi was born with weak vision, becoming fully blind by the time she was aware. Modern medicine deemed her untreatable, but her mother, desperate to cure her, heard about my clinic from a doctor at her hospital.
“They said you might fix my eyes.”
“I see…”
Her mother likely begged for the referral. Ayaka sighs quietly, frustrated by the hospital’s lax information control. Referrals were supposed to be limited to breast-related conditions like cancer.
If that rule breaks, we’ll be flooded with unmanageable cases.
(Meeting Nozomi-chan isn’t bad, but…)
Considering the treatment burden, this should be a one-off. Ayaka glances at Miyabi, the maid standing by. Miyabi nods and begins making a call on her device.
※
Nearly a month has passed since I started treating Nozomi-chan.
“Nn… aa, uun♡”
“Does it hurt, Nozomi-chan?”
“I’m… okay… nuu♡”
Today, I’m kneading her immature breasts, stimulating her optic nerves through the soft flesh.
(I’ve gotten used to this…)
Initially, connecting to her optic nerve was tough, but now I can sense it after a few minutes. The downside is the intense stimulation, which seems to strain her brain.
“Aa♡ Nn, nnn~~♡”
Nozomi-chan’s body trembles, and a clear liquid stains her underwear.
“Aa, uu…♡ Sorry, sensei…”
She thinks she dirtied the table and apologizes.
“It’s fine. You didn’t do anything wrong.”
My treatment is unique, and this reaction is common. Expecting a young girl like Nozomi-chan to endure it is unreasonable.
“Let’s stop here for today. Any changes?”
“Um, lately… my eyes see flashes of light…”
“What?”
She was completely blind, unable to perceive light.
“Sensei, that means…”
“Yeah…”
It’s gradual, but my treatment might be working. I felt progress, but I was anxious until this confirmation.
“Are my eyes getting better?”
“Yeah, they’re improving. Let’s keep going.”
“Really?! Thank you, sensei!”
Her smile fills my chest with pride.
※
While treating patients at the clinic, I can’t neglect my personal life—especially my relationship with my girlfriend, Satsuki-chan.
“Here I am.”
“Well, if it isn’t boyfriend-kun♪”
Visiting Satsuki-chan’s home after a while, I’m greeted by a stunning woman fresh from the bath.
“Oh, long time no see, Mizuki-san…”
“You’ve become quite the man since I last saw you…”
Mizuki-san, Satsuki-chan’s mother, smiles. Clad only in a thin bathrobe, her alluring figure is barely concealed.
(As beautiful as ever… She could pass for Satsuki-chan’s sister.)
Working at a high-end adult establishment, she recently passed the top spot to a junior, but her beauty remains undimmed.
“Mom, don’t come out like that!”
“Oh, it’s fine. Boyfriend-kun and I have had sex before, right?”
“Haha…”
Yes, I’ve slept with Mizuki-san too. I’ve been too busy to visit, but seeing her now makes me feel I missed out.
“Wanna do it now?”
“Mom! Darling’s having sex with me today!”
“Hmm, too bad. Next time then?”
“Haha, definitely.”
“Ugh…!”
This dynamic with the mother-daughter duo is always like this—open and comfortable about sex.
“I’m gonna change. Wait in my room, darling.”
“Got it.”
Satsuki-chan heads to another room.
…
“Ta-da! How’s this?”
“Whoa… adorable!”
Waiting in her room, Satsuki-chan reappears in a bunny suit.
“What’s with that?”
“For a shoot, you know.”
A third-year middle schooler, Satsuki-chan models for teen magazines and got this outfit.
“You like this stuff, right, darling?”
Who wouldn’t? Is there a guy who dislikes bunny girls?
“It’s perfect. You’re too cute…”
Satsuki-chan is a breathtaking beauty. My sister Ai is gorgeous, but Satsuki-chan rivals her—some might prefer her.
(She’s matured so much…)
In her growth spurt, mid-puberty, her feminine allure is skyrocketing. She’s becoming a stunning beauty who’d turn every head.
“Let’s have sex in this♪”
“Yeah.”
…
Jururu… Juppa♡ Juzozo♡
Such sounds echo in her stylish, minimalist room, coming from a beautiful girl and my erect cock.
“Nn, nn, nn♡ Juzuu… Rero. Juu… Pa♡ Haan…”
“So good, Satsuki-chan…”
Satsuki-chan buries her face in my crotch, sucking my cock—a blonde bunny-eared beauty giving oral service.
“Nn, juruuuru♡ Haamu… Juppo♡ Jubo juppo♡”
“Ku… aa… You’re so good…”
She’s skilled. As my official girlfriend, we’ve had sex often, including acts like this.
“Your cock’s extra naughty today, darling.”
Maybe. Since drinking Miyabi-san’s special protein shakes after every meal, my groin’s been in top form.
“You can tell?”
“Yeah, it tastes naughty.”
I don’t get it, but it might relate to my boosted stamina.
“Ready to…”
“Yeah, let’s have lots of sex♡”
She turns, spreading her pussy kupaa♡.
“Here you go♡”
Her erotic bunny act makes my cock harden further, my glans swelling to its limit.
“Here I go!”
“Aa, nnn~~♡”
Zubuzubu♡ My cock slides into her pussy. Made for me through repeated sex, her vaginal folds wrap around me welcomingly from entrance to cervix.
“Kuuu…”
Savoring her perfect hole, I thrust deep, hitting her core with a pachin sound.
“Aa… so deep♡ This cock… it’s the best♡”
“Moving now, haa… haa! Haa…!!”
“Nn♡ Nn♡ Nn♡ Aa… so good♡♡♡”
Grabbing her arms, I slam my hips against her plump rear with pachin pachin sounds.
“Ahaan♡ Darling, you’re too good at sex…♡”
“It’s because you’re so alluring.”
My hands send sexual stimulation, but my cock also finds her sweet spots. Knowing her body well, each thrust hits her perfectly.
Paan♡ Paan♡ Paan♡ Paan♡
“Ii, hiii♡ Darling, I love you… love you…♡”
“I love you too, Satsuki-chan.”
She’s adorable—her looks, body, naughty personality. She’s the ultimate girlfriend anyone would envy.
“I got the whole day off, so let’s enjoy it.”
“Haan♡ Nn, nn♡ Aa… my body won’t last…♡”
She says that, but she’s not unwilling. If she tires, my hands can massage her to recover. I plan to make the most of this rare full-day date.
Paan! — Paan♡ Paan♡ Pan! Pan! Pan!
“Ahaa♡ So… good…♡ Your cock’s pounding me…♡”
“Here’s good, right?”
“Auu! There… no… nn♡”
She’s getting into it. Her pussy tightens kyunkyun on my cock, matching her rising passion.
“Haa… haa… Your pussy’s amazing, Satsuki-chan…!”
“Aa… Darling♡ I’m so happy…♡ Stay with me forever…”
“Yeah, I’ll always love you… ku, uu…!”
Saying “I love you” makes her vagina cling to me, as if begging for my semen, sucking my cock deeper.
(Guh… it’s so much better than usual…)
Today’s Satsuki-chan is more passionate than ever, her body unparalleled.
“Satsuki-chan! I love you… I love you!!”
“Aa♡ Ha♡ Aan♡ I’m so happy… happy…♡”
“Gu… ooo…!!”
Dochun!! Dochuu♡ Dochuu♡ Dochuu♡ — Dochun♡♡♡
Unable to hold back, I thrust wildly. With a girlfriend who accepts all my desires, I give in to primal instincts.
“Aa, gu… It’s coming…! Coming, Satsuki-chan!!”
“Aaaa♡ Deep… shoot it deep inside♡♡♡”
As she wishes, I press my cock to her cervix, unloading thick semen from my balls.
Dobyu♡
“Nn♡ Aaa… it’s coming…♡ Darling’s baby juice is coming♡”
“Gu…! Aaa… So much… it’s pouring out…”
Today’s Satsuki-chan is phenomenal—her body, her pussy, among the best of all my partners. This single ejaculation overflows with semen, an unparalleled release.
“Uu! Haaa… Can’t stop cumming…”
“~~~♡♡♡ Darling… we’re together forever…♡”
At her climax, she professes her love.
“Yeah… forever. I’ll never let you go.”
“Yup♡”
We spend the whole day enjoying sex.
From that day, Satsuki-chan’s love for me deepens, though I don’t yet know why.
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