I was walking down a swelteringly hot street.
"Phew, it's so hot..."
I kept muttering that same line over and over.
Normally, I wouldn't want to go out on a day like this.
But I had to go to the university to deal with some summer vacation assignments, so I had no choice.
"I'll go straight home today. Shizuno-san seems to have business too."
Since my broken air conditioner had been repaired, I wanted to get back to my apartment quickly and take a nap in the ice-cold room.
"Oh my, if it isn't Shin-chan!"
"Huh?"
When I turned toward the voice, I saw a beautiful woman holding a parasol.
"Ayako-san, hello. What a coincidence."
"Yes, truly. Aren't you with Shizu-chan today?"
"No. I was at the university working on assignments."
"Hmm, I see."
Ayako-san's eyes smiled with some hidden meaning.
"Could you keep me company for a bit?"
"Huh? But it's so hot today, I was just going to head straight home..."
"Let's go somewhere cool together."
"Somewhere cool...?"
*****
I stood dumbfounded at the sight before me.
It was an indoor pool.
"Sorry to keep you waiting, Shin-chan."
When I turned around, my eyes widened involuntarily.
There stood Ayako-san in a swimsuit.
"U-uh, a competition swimsuit...?"
"Ufufu, that's right. This indoor pool is attached to my regular gym. I had them close it just for us today."
"Haha, as expected from a doctor. You must be loaded."
"Well, maybe. That boomerang swimsuit looks great on you too, Shin-chan."
"Um, weren't there any other swimsuits available?"
"What's wrong with this? I love how it bulges ♡"
"Ayako-san, your swimsuit looks like it's about to burst... especially around the chest."
"Oh my, how naughty~"
Ayako-san covered her chest with both hands and wriggled her body.
"Well then, let's swim while we're here. Your body must be getting sluggish from your lazy college life, right?"
"Now that you mention it, I guess so."
"Ayako-sensei will give you a special lesson ♡"
She winked as she said this,
"Come on, let's go."
Ayako-san pulled me into the pool.
"Swimming pools feel nostalgic. I think the last time was in middle school."
"Oh? Didn't you have swimming classes in high school?"
"No."
"That's a shame. You missed seeing girls in swimsuits during their rapid growth phase."
"Haha... Well, I'm getting to see something even better right in front of me now."
"Oh my, you're so naughty ♡ If you keep saying things like that, I'll tell Shizu-chan."
"Ah, but you're the one who invited me."
"Ufu, just kidding. Today, let's enjoy a private lesson just between us, without telling Shizu-chan?"
When she whispered close to me, Ayako-san's breath tickled my ear.
"Now, I'll hold your hands, and you try swimming with a flutter kick."
"Uh, I can do that much on my own."
"Just go with it. By holding your hands, I can help you maintain an efficient pace."
"O-oh, I see."
"Alright, let's begin."
Ayako-san grabbed both of my hands.
I got into position for the flutter kick as instructed.
"Remember to breathe properly. Okay, start."
With Ayako-san leading, I began kicking.
I thought it wouldn't be a big deal, but my body must have gotten out of shape because it started feeling tough pretty quickly.
"Come on, we've only just started."
"Y-yes."
After a while, my body gradually got used to it.
"Good, just like that."
Honestly, I wasn't very enthusiastic at first... but moving my body like this occasionally isn't so bad. I should thank Ayako-san for inviting me.
"Now, let's move to the next step."
Right after Ayako-san said that, I felt something soft in my hands.
"Huh?"
Startled, I lifted my face from the water.
Ayako-san had placed my hands on her breasts.
Without meaning to, I ended up groping Ayako-san's breasts.
"Uh, Ayako-san?"
"Come on, don't stop. Keep kicking while firmly massaging my breasts."
"Wait, that's not right, is it?"
"Moving your hands will help tone your arms. It's killing two birds with one stone, right?"
"R-really?"
"Come on, do as Ayako-sensei says."
Half-confused, I continued kicking while massaging her chest as instructed.
"Ahn♡"
"Could you not make those sexy noises?"
"It helps set the mood. Come on, keep going."
"Ugh..."
While complaining, I found myself enjoying the sensation of Ayako-san's ample breasts.
"Okay, one, two, three... Ahn♡"
W-what is this?
I came here to cool off because it was hot, but now part of my body feels like it's burning up...
"Here."
Squeeze.
"Ah!"
Suddenly, my crotch was grabbed, and I let out an involuntary sound.
"My, Shin-chan, you're already rock hard down here."
"Hey, Ayako-san?"
As I stood bewildered, Ayako-san guided me toward the poolside.
"Here."
Ayako-san lifted her swimsuit, revealing her bouncy breasts.
"W-what are you planning to do?"
"Isn't it obvious?"
Ayako-san smiled sweetly.
"Now begins Ayako-sensei's real lesson."
Next Episode Preview
"Ahn, yes... suck my nipples..."
The forbidden lesson begins by the poolside, just the two of them...
"I can't hold back anymore... put it in?"
Ayako-san actively moves her hips to entice him...
"Yes, more! From behind, yes... ahhhh...! You get a perfect score~!"
Stay tuned