I Was Reincarnated As An Instructor In An R18 Game... - Chapter 10

That night, because of the measurements, I didn’t return to Suzuya until around 9 PM.

I immediately jumped in to help out, and we shut the place down by 10 PM.

Once everything was cleaned up and I’d taken a shower, it was probably past 11 PM.

Hearing a knock at my room door, I tilted my head in curiosity and opened the door.

“…Um.”

“Niiimi-san, it’s kind of cold for that sleepwear, isn’t it? The other one…”

Niimi-san was wearing the nightwear I bought at Flower Mist.

One was made of thicker material for colder seasons, the other was an opaque light blue negligee.

Wearing the negligee, Niimi-san had come to my room.

It’s a one-piece type and reaches about knee length, but since it’s slightly cinched at the waist, the shape of her chest is clearly visible.

The front is tied vertically with a thin string, and if untied, it’s designed so that the chest becomes exposed.

Before I could finish speaking, Niimi-san pinched the edge of her clothes tightly.

She kept her head down, making it impossible to read her expression.

“…Um.”

“…Yeah.”

“…It’s… the signal.”

Hearing her fragile voice, I gently held her hand that had grabbed her clothes.

She flinched slightly, but didn’t resist and let me hold her hand.

To Niimi-san, who still had her head down, I asked as gently as I could.

“So from now on, instead of saying you’re my stepmother… it’s okay to tell others you’re my lover?”

“…Really?”

“Yeah.”

“You… you’re awful.”

“I know.”

Niimi-san lifted her face, cheeks flushed and eyes glistening.

When I gently pulled the hand I was holding toward me, Niimi-san offered no resistance and nestled into my chest on her own.

A softness so gentle, it felt like I could hear a soft “poof” sound.

I wrapped both arms around Niimi-san’s back from the front and hugged her.

Gently, as light and soft as a feather.

Niimi-san also put her arms around my back and hugged me in return.

So soft, and the scent of soap from the bath and… the unmistakable smell of Niimi-san.

Despite being so soft that it could easily be crushed with too much pressure, it also has a firm texture.

The softness like that of marshmallows, along with the sound of Niimi-san’s heartbeat.

Suddenly, Niimi-san let out a small chuckle in my chest.

“The sound of your heart is incredible.”

“…I think it would be strange if I wasn’t nervous.”

“…I was scared, thinking that so many things might break before I even got to the room…”

“Yeah.”

“It’s strange. When you hug me, the feeling of comfort and love is stronger than any guilt… and it just overflows.”

Saying that, she looked up at me from my chest.

With affection for Niimi-san, I give her a light, gentle kiss.

“Fuh…”

Noticing her reaction, I kiss her more deeply this time.

The softness, conveyed through the tenderness of her lips.

I gently slip my tongue in and touch Niimi-san’s tongue.

It’s sweet… If I had to describe it in terms of flavor, it’s a sweetness that reminds me of Mont Blanc.

Each time my tongue touches hers, Niimi-san’s body flinches a little in response.

When I pulled my face away, Niimi’s face looked flushed and dreamy.

She’s just too seductive. Honestly, I’m completely enchanted.

I can barely keep it together, and I’m struggling to remember to be gentle.

I pick up Niimi-san in a princess carry and gently lay her on her back on the bed.

Thanks to the negligee, the shape of her br3asts is clearly visible.

I position myself above her, gazing into her eyes, speaking tenderly.

“I’m going to touch you, okay?”

“R-Reid… san.”

I touch her chest lightly through the negligee. I thought I was being gentle, but her br3ast gives way to my fingers.

Yet, they still have firmness.

I continue to gently pinch the erect n1pples.

“Ngh… nnh, n-ah…”

Embarrassed, she covers her mouth with both hands, trying to hold back her voice.

Her body responds with a twitch, almost in sync with the sounds she makes.

I want to see more, to taste more.

I untie the strings of her negligee and exposing her br3asts.

Niimi has fair skin, but her areolas are neither too large nor too small.

Her n1pples are a beautiful light pink and erect.

Their luster is something you would never expect from a 37-year-old body.

Starting from her slightly visible belly button, I slowly run my tongue up to her chest.

While pinching and kneading one n1pple with one hand, I take the other n1pple into my mouth and savor it with my tongue.

Sweet, Niimi’s whole body is as sweet as a candy.

It really feels like I’m licking a Mont Blanc.

“Ah, mmm, uu… nn.”

While savoring her n1pple with my mouth, I move one hand downward.

It’s already quite wet, and I gently rub the lightly protruding part with my finger.

While gently inserting my finger inside, I continue to skillfully touch the protruding part.

“Ngh… no… no, no, no… stop… stop! N-ah!”

Her body arches back as she cries out.

At the same time, I attentively roll her n1pple with my tongue, not stopping my hand from touching below.

My face is buried in her br3asts, they’re so soft.

I continue to enjoy her br3asts with my whole face.

“Ah, it’s coming, it’s coming again… ahh! …Stop, ngh, I can’t stop, ahh! …Ahh, oh!”

After Niimi had convulsed a few times, I finally pulled my mouth away from her br3asts.

When I looked at Niimi, her face was melting, and she was panting with shallow, rapid breaths.

…I can’t hold back anymore.

I take off my bottoms and spread Niimi-san’s legs so that her private parts are visible.

“Can I put it in?”

While her face melted, she nodded softly.

I bring my hardened member closer to Niimi’s genitals.

The tip touches her genitals.

“Ah…”

Nimi-san’s body reacted for a moment, but I didn’t stop.

Slowly, I continued to push inside.

It’s hot, and… what is this writhing sensation?

“Mmm, ahh, it’s so big…”

Struggling to hold back from ejaculating, I finally reached the deepest part.

It’s pressed tightly against my shape. I can feel it undulating even though I’m not moving.

This is bad, I can’t hold on, I’m going to cum!

My head is spinning. It’s too much!

As I try to hold back from ejaculating, something brushes against my cheek.

When I lifted my face, Nimi-san smiled faintly, her hand resting on my cheek.

Gently stroking my cheek, she smiled with a hint of motherly affection and spoke.

“I’m… full of you.”

It was impossible; her words were strong enough to blow away any thought of holding back.

I grab her waist with both hands and slowly begin thrusting in and out.

I pull back near the entrance, then push forward into her depths again.

Increasing the speed bit by bit, I keep doing it again and again.

Her big marshmallows wave and shakes in sync with the movement.

“Ah… ah… mmm, ahh… ugh, ahh.”

“…It feels good.”

“Mmm, h-ah! Ahh! Mmh!”

I try to move while holding back from climaxing, but it’s hopeless.

I can’t keep going!

I stop gripping her waist and shift into a position where I’m leaning over the top of her.

I can see Niimi’s face melting with pleasure right in front of me.

“Ngh! N-ah! Ah! Ahh! Ah! Ngh!”

“Already…”

“Ah! Ahh! I-I’m… cumming, mmm!”

With those words as a signal, I ejaculate inside Niimi-san.

I embrace Niimi-san tightly and keep ejaculating.

She hugs me tenderly back, so gentle.

I bury my face in Niimi-san’s hair.

It’s too much, Niimi-san’s smell is overwhelming!

“Ah, it’s coming! I-I’m… ah! It’s coming! It’s coming! I’m c-cumming! Aaaaah!”

The pleasure overwhelms me, and my mind goes blank.

Maybe it’s because I’m enveloped in Niimi-san’s never-ending gentleness, but I can’t stop cumming.

It won’t end, my body is convulsing!

Niimi-san’s body is also arching and convulsing.

We both tighten our grip, hugging each other, hold each other’s bodies still.

I wonder how long I kept cumming.

There’s an overwhelming feeling of release and fatigue, as though nothing more can come out.

I raise my face, which had been buried in Niimi-san’s hair, and look at her face.

I kiss her face, which is melting in bliss.

While holding her, I turn my body to the side and close my eyes.

Because I wanted to fall asleep, still immersed in this feeling of joy.

On this day, I made my stepmother my lover.

–

By the way, when we woke up in the morning, we couldn’t help but laugh at our situation, and then we took a bath together.

The sight of Niimi-san naked when the sun was rising was incredibly powerful… I’ll leave it at that.

Chapter length 3339 characters.