H-how is it...?
H-how is it...?
"H-how is it...?"
In the middle of the living room.
"First, after getting on all fours..."

Yu-na Kang knelt on the mat, placing both hands on it.
Soon after, she slowly lowered her upper body forward and stretched her arms out.

It was the cat pose.
A pose where you round your back and lift your hips high.
"..."
Her tight leggings were accentuating the soft curves of her buttocks.
Even on her waist, which wasn't covered by clothes, her toned figure was clearly visible.
I was sitting on the sofa, watching her body from the side.
It was a relief.
If I had been looking at this pose from behind instead of the side like now.
'It would've been nice...'
Slap!
At the sudden, crisp sound that rang out, Yu-na Kang was startled and turned her head to look at me.
"W-why, what's wrong? All of a sudden?"
"...It's nothing, keep going."
In that moment, I had slapped my own cheek to stop my dirty desires from popping out again.
'...Did I hit it too hard?'
It does sting a bit.
Even after I told her to continue, Yu-na Kang, who had been looking at me restlessly, spoke up again.
"Th-then... how's the pose? You've been working out consistently, right?"
"Gym workouts and yoga are different."
I replied bluntly for no reason to Yu-na Kang's request to check her form.
When I turned my gaze back to her, I didn't know if it was because I was a complete novice at yoga, but—
Objectively, the form looked flawless.
The way her arched back formed a soft curve, her flexibility definitely looked good.
"...It's good."
So I just answered honestly, and then.
"H-huh?"
For some reason, Yu-na Kang froze in that exact pose.
Only after a few seconds of silence did Yu-na Kang release the pose.
"..."
"...What are you doing?"
I asked because for some reason she was sitting there, turning her face away and refusing to look at me.
Yu-na Kang continued, her energy returning as if it were nothing.
"N-next pose! Should I show you?"
With movements that seemed somewhat rushed, Yu-na Kang lay on the mat, looking up at the sky.
After waiting a moment, she began to take the second pose.
It was a pose I knew this time too.
Bridge pose.
With her back on the floor and knees bent, Yu-na Kang slowly lifted her waist.
As she supported her body with her arms, neck, head, and toes, her hips lifted into the air, and her leggings were pulled taut.
It was a pose that fully revealed her inner thighs, pelvis, stomach, and chest line.
Yu-na Kang looked up at me, panting, with her waist lifted as high as possible.
"Th-this is... supposed to be good for the pelvis and waist line... How is it?"
Perhaps because it was hard to talk while holding the pose, her voice trembled slightly.
Her face was red to the tips of her ears, and sweat was trickling down her neck.
I was sitting on the sofa, staring intensely at her body.
It's just yoga.
But because of Yu-na Kang's body, this atmosphere, and that sweat, it kept looking erotic.
When I couldn't answer, Yu-na Kang stared at me in the silence, looking nervous.
I felt the inside of my pants swelling up again.
Erections that happen all the time these days.
'Ha, I don't know anymore.'
I already had a history of getting caught with an erection by Yu-na Kang, and she had just let it slide.
Is there any need to hide it?
My brain circuits having malfunctioned somewhere, I decided to just go with it confidently.
I didn't bother to suppress or hide the erection.
Yu-na Kang was still staring at me while maintaining the bridge pose.
Then, her gaze slowly traveled down from my face and stopped at the front of my pants.
"...!!"
At that moment, Yu-na Kang's eyes widened slightly.
Naturally, it was because she saw my pants slowly bulging.
I expected her to tease me again, calling me a pervert.
However, Yu-na Kang stayed still, as if frozen in place for a while, and didn't say anything.
Only after some time passed did she move her body awkwardly, unable to take her eyes off my pants.
"...Th-then... next pose..."
I hadn't even given my evaluation of the first pose or said anything yet, but no one here complained.
Yu-na Kang, who had naturally released the bridge pose and was sitting there catching her breath.
Yu-na Kang, who was about to move on to the next pose, suddenly hesitated.
Sitting on the yoga mat, her eyes were spinning as if she were contemplating something.
Then, she slowly turned her body to face me directly.
"This is... for l-leg flexibility... ah, p-pelvis? It's a pose that's said to be g-good for flexibility..."
And then, for some reason, stuttering even more severely—
Yu-na Kang slowly began to spread her legs.
"...!!"
She grabbed her thighs with both hands and spread her legs wide.
The leggings were stretched to the limit, and her vulva was completely exposed.
But there was a bigger problem.

It was the fact that a damp, wet mark was clearly spreading across the center of her leggings on the exposed vulva.
Through the thin fabric, the shape of her swollen labia and even the slightly indented valley between them were clearly visible.
The leggings fabric was digging in slightly, making the outline look even more prominent.
The moment I saw that sight, my cock, which was already half-erect, became completely hard in an instant.
The front of my pants was clearly raised, so I couldn't hide it anymore.
Yu-na Kang, the culprit who caused this situation, had her eyes squeezed shut, her face flushed bright red.
She asked in a trembling voice, still in the position with her legs spread.
"H-how is it...?"
It was as if, since she had seen me aroused, she wanted me to see her aroused as well.
My head felt like it was going to explode from this situation and the visual stimulation.
Just then.
Clack—!
I heard the sound of a door opening from the hallway.
"...Gasp?!"
"Hup...?!"
Yu-na Kang's and my bodies froze at the same time.
Soon after, footsteps heading toward the living room were heard, and I, having barely regained my senses, started to act first.
I quickly grabbed the cushion next to me and covered my crotch, albeit clumsily.
Yu-na Kang hurriedly brought her legs together, turned her body to the side, and tried her best to hide her posture.
Soon after, the footsteps got closer, and Seo-ah Kang appeared from the hallway.

"...?"
Seo-ah Kang, who was heading to the kitchen as if to drink water.
She saw us, stopped, and tilted her head.
The sight of Yu-na Kang and me avoiding her gaze and sweating profusely would have been extremely suspicious even to a third party.
"What are you doing? Did you do something wrong?"
Seo-ah Kang, sensing something strange, asked that.
And Yu-na Kang, as expected—

"N-nooooooo?!"
She overreacted again.
'No, is she an idiot...'
Seo-ah Kang's eyes narrowed at Yu-na Kang's response, which was now undeniably suspicious to anyone.
"...Eonni, you're hiding something, right? Why are you wearing yoga clothes..."
She slowly approached Yu-na Kang.
With every step, the tension weighed heavily on the air.
Yu-na Kang kept her legs together, turned her body further to the side, and the hand she was using to support herself on the mat was trembling slightly.
The damp mark remaining in the center of her leggings, still visible from here, was still clear.
I gripped the cushion tighter.
My heart was pounding like crazy, and cold sweat was running down my spine.
It was just about when Seo-ah Kang was about to reach Yu-na Kang.
"S-Seo-ah!"
I called out to Seo-ah Kang in my haste.
Fortunately, Seo-ah Kang stopped her approach and froze in place.
She slowly turned her head to look at me.
"...Why!"
The usual blunt reply came back.
Regardless of the truth, it was a fact that Seo-ah Kang treated me as if she hated me, as evidenced by this case alone.
I had spoken to her to make her leave, even if it meant driving her away.
But if I didn't say anything like this, the sparks would fly to me too.
So I had to find an excuse quickly, but after calling her, my mind went blank because I couldn't think of anything to say.
So in the end, I just blurted out something.
"C-can you draw me?"
The moment I said it, the thought that I was screwed flashed through my mind.
'Can you draw me, seriously, fuck.'
I should have at least not brought up the topic of drawing.
Not long ago, I had asked her to show me her drawings while eating, and I had been coldly rejected by Seo-ah Kang.
It seemed that words had popped out because the only information about Seo-ah Kang that came to mind was drawing.
Seo-ah Kang looked at me with wide eyes.
"...What?"
Her voice trembled slightly, as if she were taken aback.
Regretting that uneasy reaction, I was sure of a rejection and started racking my brain to quickly find the next excuse.
But the answer that came back was the exact opposite of what I expected.
"...F-follow me then."
With that blunt affirmative answer, Seo-ah Kang turned around and walked to her room.
"...?"
I stared blankly at Seo-ah Kang's back as she disappeared down the hallway.
Then I turned my gaze to look at Yu-na Kang, and she also had a blank look on her face, as if she hadn't expected it either.
We both looked at each other for a while with expressions that said, 'What the hell just happened?'
After a short while, Yu-na Kang regained her senses first and said to me.
"H-hurry up and go!"
"O-okay."
In the face of such a bewildering turn of events, after checking that my half-erection had subsided.
I put down the cushion and followed Seo-ah Kang.