Ero Academy

"Did you enjoy your lunch yesterday?"

"Yeah, it was delicious."

Glancing at the dish drying rack, I notice that the lunchbox containers have already been washed and neatly put away. In our household, there's never a day when dirty dishes pile up. It's all thanks to Serena.

"I saved some for you, too. It's in the fridge."

"I had a hamburger for breakfast."

"With whom?"

…With whom? Stella's questioning feels so natural that it makes me slightly uneasy. When I sit down on the sofa and start watching TV, Stella clings to me and asks again.

"With whom~ Who did you eat with?"

"Some sophomores. You wouldn't know them even if I told you.

"Suspicious… Big brother."

"What if it's suspicious? Are you going to check up on me like a protective little sister?"

Stella huffs and snuggles into my embrace. What is this grown girl doing, spreading her legs like that?

In a house with just the two of us, there was no Serena around.

Stella whispers while hugging me tightly like a baby.

"Of course. My brother is the pillar of our home. I have to make sure he doesn't get involved with strange women."

Haha…

The karma of checking the underwear that my sister bought returns so quickly.

I hugged Stella, who was trying to suspect her brother's girlfriend, and spoke.

"I had a meal with twin sisters in the second grade."

"Are they pretty?"

"Incredibly so. I only saw them eating hamburgers while facing each other, but they were so beautiful that it made me involuntarily delighted."

"Are they prettier than me?"

"…"

I'm at a loss for words.

My sister is indeed the prettiest, but...

"Hehe."

As if Stella was satisfied with my reaction, she didn't budge, sitting firmly on her brother's cock.

Rubbing, rubbing… gripping tightly…

I watched TV, pampered like a baby.

…

This girl keeps pressing her behind against my cock.

"Is this really okay?"

Both Serena and Stella.

They keep testing the patience of their caring brother.

"Because I know my brother would never make a move on me."

I'm grateful for her trust.

I shared a light kiss with Stella.

"Mmph…!?"

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"Shlick…"

It escapes with a slight touch of the tongue.

"Did you see? Where's the guarantee that I'll never be attacked?"

"I don't know. Anyway, my brother won't do that."

Rubbing♡

Unaware of the intense battle of endurance her brother endures,

Stella adorably grinds her buttocks against my cock.

Are they newlyweds?

No, even a newlywed wife wouldn't cling to a man like a baby and enjoy it this much.

"Nibble… Suck…"

Stella savors being in her brother's embrace as she sucks on the nape of my neck.

"Is there nothing else to do besides snuggle up in your brother's arms starting from the weekend?"

"We had an exchange battle... On weekends, I should rest at home."

"Is this resting?"

"Yeah, being with my brother is resting."

She is so brazenly affectionate that I'm at a loss for words.

Stella giggles sheepishly.

"Since it's home, we can do whatever we want."

"…What?"

"Brother… I love you... that sort of thing."

"…."

"I love you, brother."

Suck. Suck.

Stella clings even tighter.

"Hehehe. Brother, I love you."

"I wish I could show you this side of me from two weeks ago."

"Ugh!"

Her cuteness turns into playful pouting.

Stella wraps her legs around my waist and rubs against me, speaking teasingly.

"Now, because I love you, brother... I've put the past behind us. Don't dwell on the apology I received."

"Have you become shameless now?"

"Hmph. Won't it be cool if you twisted it?"

"Excuse me?"

"If you twist it... Haum… Chueup… Isn't it cool enough to make even your little sister fall for you?"

What are you saying, little sister?

"You're thoughtful, cool, and composed."

Her tone seems like a curse, but her words are actually compliments.

"Hmph… It's only natural for a brother deserving of his sister's love to do this for her."

She hugs me tightly.

Stella's endless embrace continues.

"How does it feel?"

"I can sense my sister's love."

Gradually, my erect cock reaches its limit.

"Something keeps touching my butt."

"If Stella keeps rubbing like that, even a monk would get an erection."

"What are you saying?"

Let's just watch some TV, brother.

As Stella was on the verge of leaning back, she whispered into my ear.

"Do you want me to do it with my mouth?"

"…"

Having a blonde, tsundere sister take a cock into her mouth is definitely not...

The image of a normal family.

"3, 2…"

"Do it."

But these mischievous sisters won't leave me in peace.

Stella pulled down my pants, revealing my erect cock, and began with a kiss.

"*Smooch*…"

She seems to have grown accustomed to taking Serena's sultry lessons, handling a cock with her mouth.

What did I think would change after the exchange was over?

Despite my warnings, Stella immerses herself in this boundary-crossing service.

And I, unable to refuse her, must have a problem too, right?

In the realm of adult games, such an event is common.

For the older brother watching TV, his younger sister's oral ministrations begin.

"First, I'll gather a lot of saliva."

Stella, realizing that a lack of lubrication could cause pain,

She recalls Serena's advice and slowly coats my cock with her tongue, one careful stroke at a time.

From my perspective, I could see Stella lying down like a cat, gently swaying her hips.

"Just watch TV comfortably, okay?"

"…Sure."

I feel like I'd lose if I paid too much attention, so I decided to just watch TV without care.

It's only natural for a sister to use her mouth like this. It's natural…

"Sluuurp…♡"

I couldn't help but be taken aback as I watched Stella, her saliva drenching my cock as she sucked it, pulling on it until my philtrum stretched.

My cock… It was getting hard without any resistance.

"Hey, I told you to watch TV. What are you looking at?"

Stella expressed her embarrassment at being watched so intently with an aggressive tone.

I pat Stella's head roughly and leave my erect cock in her care.

"Slurp, slurp, slurp... My jaw hurts because it's so big. Can you make it a little smaller?"

"Can you really do that?"

Oh wow.

Stella focuses her attention on my balls.

"Slurp, slurp, slurp, slurp."

"I really wish I could show this to Stella from two weeks ago."

"Uhm… Sluuurp… So now… I've become your special little sister who sucks your balls, huh?"

"That's right."

"…Hmph."

It seemed difficult for Stella to find the right words, as she too repeated a line similar to Serena's.

"Um, a little sister could, you know, give her brother a blowjob or suck his cock."

Kiss, kiss.

Stella's lips press tenderly against every part of my cock.

Fully swallowing it would be exhausting, so instead, she expertly uses her tongue to caress and kiss it, conveying the texture of her lips through my manhood. Her technique is impressive.

"Whew~."

She breathes on it and sucks my balls as well.

Distractedly watching a rerun of a variety show, I receive Stella's devoted fellatio.

"Slurp, slurp, slurp, slurp."

Stella lays my cock back and licks it with her tongue, from the back of the glans all the way down to my balls.

"Choo… chuu…"

Stella skillfully locates my sensitive prostate and sucks on it with her lips.

"Brother, your cock seems so happy, all perky and excited."

"You're doing so much."

Rather than merely sucking,

She kisses my cock as if showering it with love, licks it with her tongue, and lets me feel her breath.

And rubs it with her lips.

"Serena taught me. All the weak spots on your cock."

"…"

"Swish, swish… It's like when you look at the notes of a top student and everything just clicks in your head, you know?"

I don't know.

Back when I was in school, I was terrible at studying. Ah…!

Just because I became possessed by OnaAka, I'm receiving oral pleasure from my adorable blonde little sister.

"Anyway, you're a D-rank, so you wouldn't understand."

"That damned D-rank..."

"Zzzup… You're not hurt, are you? Why, no one thinks you're really a D-rank anymore.

That's true.

"So… Zzzup… If you were truly D-rank and trash... It would be an insult, but if it's not obvious to anyone... It's a joke, right?"

"Do you like sucking your brother's D-rank cock?"

"What's D-rank about it?"

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