How Using My Oppai Skill to Enlarge My Sister’s Breasts Led to Building a Harem - Chapter 9

Chapter 9

I had entered a physical relationship with Ayaka-san, a married woman. Though I knew we shouldn’t meet anymore, I couldn’t resist her charm and continued our secret rendezvous.

During one, I consulted her about future treatment plans…

“You should be selective about who you treat.”

“Screen patients?”

“No, limit it to those who believe in your ability.”

Ayaka-san explained that skeptics might call it occult or fraud, and malicious media could expose my address or car.

“T-That’s scary… I hadn’t thought that far.”

Until now, I’d only treated acquaintances or women from the escort agency. Proving my ability with Ayaka-san made me want to help more women struggling with breast issues.

But that depends on my and my family’s safety.

(Ai or Satsuki-chan could get harassed…)

If they faced trouble because of me, I’d regret it.

“The Saionji family runs a hospital. What if we limit ‘treatments’ to those truly in need?”

Treatments are for doctors—but if a hospital recommends it as alternative therapy, it’s fine. Massages are a matter of belief, and I could still maintain the agency women’s bodies.

(A hospital-owning family… she really is a high-class lady.)

“C-Could you arrange that?”

“Yes♪ I’ll make sure to help you.”

Ayaka-san clenched her fists cutely, full of determination.

(She’s older, but why’s she so adorable?)

“So, sensei, I came for a massage today…”

“Oh, right. Shall we start with a shower?”

I guided her to the shower room as usual.

“Um, sensei… want to… join me…?”

As if reading my deepest desires, Ayaka-san tempted me. Her mature allure mixed with occasional cuteness held my heart captive.

“Huh!? I-Is that okay?”

“Fufu, this is your clinic, right?”

“Oh, yeah, haha… let’s do it.”

“Yes♪”

…

We’d already been intimate once, but her naked body never failed to captivate me. I stared as she blushed, sliding off her underwear.

“Being stared at like that… no, it’s fine…”

Her face reddened further. Before me, her round, curved hips—her lowered panties were wet, emitting a sweet scent.

…

The clinic’s shower room, in a small building, was cramped. With both of us inside, we were pressed close.

“Oh, sensei’s already… so lively…?”

“Haha… a man can’t help it seeing a beautiful woman naked.”

With nothing to hide, my cock stood fully erect, pointing upward.

“I-I didn’t know…”

(Her husband was different…)

Her husband, into young girls, wasn’t aroused by her big breasts, so she must’ve struggled. She stared at my rock-hard cock, blushing.

“Let’s wash up.”

“Y-Yes! Yoisho… ah!”

In the tight space, our bodies bumped naturally. My cock pressed into her soft belly, munyuri♡, sending a pleasant sensation.

“S-Sorry! Did I hurt your… important part?”

“Haha, not at all—it felt good.”

“Oh♪ Then… shall I wash you?”

Despite her shyness, she couldn’t take her eyes off me, clearly curious about a man’s body.

“Please. The body soap is… oh.”

“Ah, kya! Sorry…”

Our bodies collided again, her soft parts brushing me, making my lower half even more eager.

“Your… p-penis is twitching…♡”

(My cock’s so hard it hurts…)

“Ayaka-san, can you wash me with your body?”

“With my… body?”

I was desperate to feel her skin.

“Like this, press close…”

“Ahn♡ Your strong body…♪”

“Now rub against me.”

“Y-Yes… like this? Nn, nn… haa~♡”

Her soft oppai pressed against me, munimuni♡, shifting shape. Her hard nipples grazed my muscles, making her tremble, biku.

(She’s so cute… I saved her, didn’t I?)

The thought of failing her sent chills through me. As her soft body washed me, I felt grateful for meeting her.

※

<Ayaka’s Perspective>

I was born the eldest daughter of the Saionji family, a prestigious former noble lineage. Raised as a sheltered lady, I graduated from an elite girls’ school for high-class daughters and married a man from another distinguished family—my current husband.

A life others would envy turned to despair. Since our marriage, he never treated me as a woman.

“You’ve got such a sloppy body… why am I stuck with you…”

On our first night, I overheard him mutter as I lay beside him. That’s when I knew he didn’t love me.

Later, servants’ gossip revealed he only loves young girls. Understanding this, I suppressed myself, believing my purpose was to bear and raise children.

But I couldn’t even do that. Without proper intimacy, I never conceived, and the Saionji elders deemed me useless.

Then, a disease struck.

“You’ll need a mastectomy.”

I still recall those words clearly. Losing my breasts—meant for nurturing children—felt like my existence was denied. My husband, indifferent, even said it was good to cut off something so ugly.

Crushed by despair, I placed my last hope in a boy with miraculous hands, introduced by a relative…

The result—

“Ayaka-san… your soft breasts feel so good… you’re amazing…”

“Nn, nn♡ You’re… aroused by my body?♡”

“I want you so bad…”

The man before me, my savior, gave me hope to live and a woman’s joy. He’s aroused by the breasts I was told were ugly.

“If my body’s enough, use it anytime.”

“Ayaka-san… Ayaka-san!”

“Ahn♡ So intense, sensei.”

His strong, muscular body pressed against me, holding me tightly.

(Ah… so hard♡ Unlike my soft body, a man’s sculpted physique♡)

My sensitive parts rubbed against his rugged muscles, sending sweet tingles through me.

“Hold me tighter.”

Pressed hard, gyu♡, against his firm body, I rubbed my lewd self against him. Heat surged from my pussy.

Jun♡

(Ah… this is getting wet.)

Hugged by a wonderful man, I was soaking, feeling supreme joy and growing drawn to him.

“I can’t hold back!”

“I want you too… do it♡”

Shameless words slipped from my mouth. Triggered, his splendid cock swelled massively, pulsing on my belly.

(I want it, I want it… I want this man to take everything.)

My dormant desires overflowed.

“Hurry, put it in♡”

Unable to control myself, I begged lewdly.

“Haa… haa… Ayaka!”

With his strong male strength, he lifted me, sliding his hard, hot cock into my slick pussy, zunyuru♡.

“Nhaa! It’s going in~~~♡”

(This isn’t baby-making… such a shameful position, entering my pussy.)

“Your thick, strong cock’s stretching me…♡”

“I’m moving.”

Zun♡

“Au♡ So deep…”

His long cock hit my sweet spots perfectly.

Zubo♡ Zubo♡ Zubo♡

“Au♡ Aa♡ No…♡”

Lewd sounds echoed from my pussy.

“Make all the noise you want! Here I go!”

Zubo♡ Zubo♡ Pan♡ Pan♡ Pan♡ Pan♡

“Ohh♡ Ah♡ Ah♡ Ah…♡”

He called my embarrassing, forbidden moans cute. I felt he’d accept me no matter how wild I got.

“Sensei, thrust harder♡ Love me♡”

“Ayaka! Ha, ha, ha!”

Pachin♡ Pachin♡ Pachin♡ Pachin♡

My hips shook, purunpurun♡, as his hard cock slammed in, hitting every sensitive spot with intense pleasure.

“Ku… my cock’s melting…!”

“Aaaa♡ No… I’m coming♡”

Each deep thrust made my womb tighten, kyun♡, anticipating something…

Stimulated relentlessly, my mind turned pink, and I said the unspeakable.

“Yii♡ I wanted to be with you, not him… ahh…♡”

“Ayaka-san… Ayaka! I’m…!”

Paan! Pan♡ Pan♡ Pan♡ Pan♡

“Aa… coming♡ Coming, coming~~~♡ Ahaa~~~♡♡♡”

As my mind blanked, he thrust deep, dochun♡. His cock swelled, convulsing, bikubiku, unloading massive seed into my depths.

“It’s coming♡ Pulsing, your seed’s deep inside…♡ Haunn~~~♡♡♡”

“Kuah… too good, Ayaka-san!”

Instinctively, he ground his cock into my womb, trying to plant his seed. My pussy writhed, milking him.

(Ah… I might get pregnant…♡)

My body was instinctively trying to conceive.

Conceiving another man’s child—an unforgivable sin.

(But I want his child…)

Unlike my cold husband, this man loves and is loved by me. Bearing his child is a woman’s true happiness—I, who once faced death, now understand.

“Give me everything, sensei♡”

I tightened my belly to milk every drop.

“Ugh… never came this much… uuh!”

(Give it, give it♡ Your baby-making seed, for me♡)

Nothing else mattered.

“That felt amazing, Ayaka-san.”

“Yes, it was wonderful… sensei♥”

“Let’s do it anytime. —Ayaka-san?”

“Yes?”

“You’re rubbing your belly… does it hurt?”

Unconsciously, I was stroking where I received my precious treasure.

“No♪ Nothing to worry about, sensei.”

And so, I conceived the Saionji heir.