Taking The Younger Sister's Virginity

'Hmm, inverted nipples. That was a bit unexpected.'

I had no idea she was hiding such a weapon with that innocent face.

I was expecting to see breasts, but I was a little taken aback by those tiny nipples.

Of course, I was happy to be mistaken.

When Ryuz unbuttoned her bra and showed me her breasts for the first time, I found myself in admiration mode.

I thought that since Ryuz had big breasts, that must have had something to do with it, right?

Of course, strictly speaking, there was no connection between breast size and inverted nipples.

Still, Ryuz's breasts were unusually large for her size.

At a normal size, they were more explosive than her taller sister's.

I wonder if it was because of an imbalance in growth.

Or maybe she was squeezed by a sudden growth spurt when she was growing up.

'Well, it doesn't matter what caused it.'

Yeah, what mattered was that Ryuz has inverted nipples.

And that she was holding her breasts out in front of me for me to touch.

Her eyes and red cheeks were slightly dazed from the kiss.

Eyes that wanted something desperately.

And a look of shyness on her face.

She looked like a lovestruck schoolgirl.

"I'd like to grab them and fuck them to my heart's content, but if they're inverted nipples like yours, I suppose it's okay to take my time and enjoy them."

What's more, while Ryuz was already infatuated with me, she had no sexual knowledge.

A girl's first experience was like a fruit that could only be enjoyed for the first time.

I wanted to enjoy this time as long as possible.

"So, Ryuz. Are you sure you're okay?"

"Yes, yes, yes…!"

Ryuz tightly closed her eyes.

Perhaps she imagined me grabbing her roughly.

That would probably be the limit for a young girl with no sexual experience.

"Seeing her like this, she still looks like a child, and it's cute."

Instead of doing as Ryuz wanted, I extended my finger towards her breast.

Gently, I caressed just the underside of her breast, teasing her as if tickling.

"Ah…huh…! Uh…!"

Her body twitched slightly, reacting to my unexpected actions.

But even this alone must be giving Ryuz tremendous pleasure.

[Item Window]

Name: Charm of Affection (Single Use)

Description: You can engrave a charm on a designated target. The more physical contact with the charmed target, the more their affection for the user increases. Once the affection reaches a certain level, they become aroused and enter a state of estrus. Once the affection is maximized, the location of the charm can be changed to above the womb, allowing the user to increase the target's arousal at will.

Because of the effect of the seal, Ryuz was excited just by touching my body.

In this situation, touching her sensitive breasts would go without saying.

Ryuz's breathing became noticeably rougher.

"Haa…ahh…huh…♥"

Pained moans escaped from Ryuz's lips.

She couldn't keep her hips still, twisting and twitching.

She even pushed her breasts towards me as if asking for more.

'She must be going crazy with desire.'

The force I was applying with my fingers was almost nonexistent.

For Ryuz, it felt good but didn't fully satisfy her.

Thus, with each touch of my hand, her excitement only built up more.

I wished there was some way to relieve her of this.

I was teasing Ryuz, not providing stimulation but rather just increasing her frustration.

"Haah…ahhh…♥"

Ryuz gasped, feeling my touch.

Before I knew it, she was holding onto my shoulder, trembling, barely clinging to me.

She seemed desperately hoping for some relief.

But I kept teasing the less sensitive areas, like the underside and side of her breasts, avoiding the parts she most wanted touched.

'I'll give her the satisfaction she wants, but later.'

"Huat…! Uh…!"

How long did I torment her like this?

I saw her inverted nipples twitch.

Then, I gently stimulated the area around her breasts more.

-Pop!!

"Ha, uh…!"

Her excited nipples broke free from the flesh, a rare sight for normal breasts.

It was an incredibly stimulating sight, like unearthing diamonds while digging in the ground.

There was a certain pleasure in watching her fully erect nipples tremble.

"Auuu...."

But Ryuz, the owner of said breasts, seemed quite embarrassed.

She tried to cover them with her arms after seeing their state.

I stopped her from doing so.

"It's okay, Ryuz. You don't have to be embarrassed."

"But, Teacher…"

"I want to see your beautiful breasts without you hiding them."

My compliments were like a drug to Ryuz.

She trembled for a moment and then finally pushed her breasts forward.

'I've got her so aroused now; I can't let the mood drop midway.'

I continued to caress Ryuz's breasts with my fingers.

But this time, my movements were slightly different than before.

My fingers moved slowly but surely toward her stiff nipples.

"Huh…!"

Ryuz must have felt it, as I could sense her tension.

It was as if all her nerves were focused on her nipples.

Of course, that was exactly what I was aiming for.

'The longer this goes on, the more sensitive her breasts will become.'

The foreplay and sex that followed such teasing had a unique, thrilling sensation.

Once addicted to this kind of pleasure, it's impossible to be satisfied with ordinary play again.

But that's not really my concern.

After all, I would train Ryuz to the point where she couldn't live without my penis, just like Amy.

"Haa…huh…♥ Aow…♥"

Ryuz seemed to realize I was teasing her and what my ultimate goal was.

She was embarrassed, yet her eyes couldn't leave my fingertips and her nipples.

My slowly moving finger finally reached her pink areola.

Realizing I was about to touch her sensitive nipple, Ryuz tensed up.

But I just circled around it, teasing her even more.

"Haa…! Aah…♥ Ahhh…!"

Ryuz couldn't even hide her panting breaths and moans.

She was oblivious to the clear drool trickling from her mouth, seemingly reaching her limit.

Her writhing body showed how desperately she needed release.

I continued circling my finger, then lifted it slightly.

"Ryuz, can you look at me for a moment?"

"Yes, yes?"

Ryuz's gaze shifted to me, her focus moving from her nipples to me.

Then, I pressed her nipple with my finger.

"Huuuuuuh?!"

Ryuz suddenly arched her back and shivered intensely.

She reached her climax just from her breasts.

Her grip on my shoulder instinctively tightened.

"Ah, ahhh...♥"

Ryuz was unable to speak, just gaping.

She probably felt as if the world had suddenly turned white.

Her breasts were teased to the limit, and her body tensed with anticipation.

The pleasure she felt was like a lightning strike in that distracted moment, something she had never experienced before.

Her mind was probably too occupied with processing this new sensation.

Even Amy, who has had plenty of sex with me, was completely knocked down by this kind of play.

'It must feel like being the only person in the world, filled only with pleasure.'

Having experienced such ecstasy for the first time with her breasts, Ryuz was still lost in it.

That was why I made her look at me.

So she'd imprint in her brain who was giving her this pleasure.

"Ha, ahhh...♥"

After a while, Ryuz seemed to regain some consciousness.

Her breathing was still ragged, but she leaned her trembling body against me.

I held her and stroked her hair.

Maybe it was because of my subtle gaslighting during tutoring.

Now, just by stroking her head, Ryuz became completely disarmed mentally.

"Did it feel good, Ryuz?"

"Ve-very much sooo...."

Even though she was still dazed from her climax, she honestly answered.

Typical of a diligent student.

I kissed Ryuz on the lips.

Ryuz, still inexperienced, opened her mouth to make it easier for me to slip my tongue in.

It was more of an instinctual action in pursuit of pleasure than a conscious one.

Judging by her reaction, it seemed okay to proceed further.

'Her vagina must be really wet too.'

Perhaps to appeal to me, Ryuz wore a short skirt today.

The juices were already dripping down her thighs.

With this much wetness, even with her skirt on, her panties must be thoroughly soaked.

"Ryuz, I'm going to take off your skirt now, okay?"

"Yes, y-yes…"

I laid the panting Ryuz on the bed and removed her skirt.

Immediately, her pink panties, soaked around the vagina area, came into view.

'I haven't even touched her vagina yet, and it's already in this state.'

Of course, it wasn't surprising, considering how much I teased her.

Seeing her this excited made me feel both aroused and proud.

Her young body, emitting a seductive scent, was incredibly attractive.

"Teacher… it's embarrassing when you look at me like that…"

"Oh, sorry."

Ryuz seemed aware that her state was not normal.

Her ears were flushed red.

Of course, she wouldn't back out now for being embarrassed.

"Well, if it's with Teacher, I guess it's okay."

Ryuz said this and slid her hand downward.

She then took off her panties herself.

Afterward, she held up her soaked panties in front of me as if to show them off.

"Since I got this way because of Teacher… You have to take responsibility, right?"

The words of a completely naked woman holding up her panties were quite stimulating.

I smiled slyly and spread Ryuz's legs.

I had planned to tease her a bit more, but seeing her this absorbed, I decided to change my approach.

It was time to give her definite pleasure.

"Te-Teacher?"

Ignoring her anxious tone, I firmly grasped her legs.

Her moist, pink vagina was visibly twitching.

I positioned the tip of my penis against it and pushed my hips forcefully.

"Ong hooh…?!"

As I inserted my penis deep into her tight vagina.

Ryuz threw back her head and climaxed.