Chapter 15: Exercising Naked Increases Effectiveness by 45%
Translator: RaidenTL
Chapter 15: Exercising Naked Increases Effectiveness by 45%
“You want me to take my clothes off?”
Miju’s eyes changed slightly.
Had the gym’s hypnosis not kicked in properly?
“Ah, well, you see... this piece of equipment works much better if you exercise without any clothes on!”
I blurted out the first excuse I could think of.
Perhaps because I sounded so desperate, Miju’s eyes grew slightly unfocused.
The gym system’s hypnosis was working.
“Exercise effectiveness... I see. If it works better that way, then I should do it. You’ve never been wrong when it comes to working out, Oppa.”
Miju nodded.
“Haha, exactly.”
Phew.
I breathed a sigh of relief.
I almost got branded as a pervert.
My desire to get her clothes off wasn't just because of my ulterior motives.
Really, it wasn't.
‘Of all the options to get stuck with...’
I sighed as I looked at the butterfly machine I had bought second-hand from the store owner.
A Chest Fly.
On the market, a model like this could go for several thousand dollars.
‘We have extra stock we don’t use, so just take it for 300,000 won. I’m giving it to you cheap because it’s you, Jae-ho.’
I had basically gotten it for free.
The owner had even handled the packaging and assembly himself.
Once the machine arrived, the system spoke.
[You can consume Health Points to grant options.]
So, I spent all 100 of my HP.
This was the result.
[Additional Option: Naked Exercise – Exercise effectiveness increases by 45% when exercising naked.]
[Includes Trainer]
It was truly because of this effect.
That was the only reason I was trying to get Miju to undress.
“Then hold on a second. I’ll take my clothes off.”
Having said that, Miju nonchalantly took off her gym wear.
As she shed the black gym wear, her pale skin was revealed to the world.
I could see her sports bra and the breasts that I had only caught glimpses of through her clothes before.
Thanks to the bra pushing them together, her cleavage was clearly defined.
Then, Miju removed the sports bra that had been covering her breasts until the very end.
Boing.
Perhaps it was the recoil from the bra that had been tightly holding them in place.
Miju’s breasts swayed heavily up and down the moment they were freed.
‘Wow...’
It was the kind of movement no man could help but stare at.
I instinctively turned my face away, but my eyes kept drifting back to catch a glimpse of her chest.
Regardless of my internal struggle, Miju, now completely topless, proceeded to take off her pants and pull down her panties.
Her pussy, partially hidden by hair, peeked out.
‘Wow, this is driving me crazy.’
Just looking at her made the blood rush to my groin.
My heart was pounding like mad.
It felt like it was beating harder now than when I was exercising to the point of death.
For someone like me who didn't have much experience with women, this was far too much stimulation.
‘W-where am I supposed to look?’
There was nowhere for my eyes to rest.
“Ahem. Are you... are you all done?”
“Yes, I’m all undressed, Oppa.”
Unlike me, who was doing my best to hide my embarrassment, Miju spoke as if it were nothing.
‘Right. This isn't weird. It’s for the sake of the workout.’
Even Miju thinks it’s normal.
If I keep acting embarrassed, she’ll think something is wrong.
Right, so let’s calm down.
I pulled myself together and turned my head to face Miju.
I took in the sight of her clean, naked body.
This can’t be helped.
It’s for the workout.
I focused my mind, hypnotizing myself.
“Don’t stare so much. It’s... it’s embarrassing.”
Meeting my eyes, Miju shyly covered her stomach.
Not her breasts, not her crotch—her stomach.
“I-I haven't worked out enough yet, so I probably have a bit of a tummy.”
She was more embarrassed about having a little bit of fat on her belly than the fact that she was standing there completely naked.
As if standing nude was perfectly natural.
“N-no. You look great.”
Every time she moved to cover herself, her breasts swayed...
No, focus.
Her body was well-balanced. She was worried about her belly, but on her moderately slim frame, that slight softness was absolutely not a problem.
‘If anything, it makes her feel more human.’
If she didn't even have that much fat on a body like that, it would have looked unrealistic.
“Even if you compliment me like that, I’m not giving you anything.”
Miju muttered, pouting her lips.
I could clearly see the corners of her mouth twitching upward.
“A-anyway, shall we start the workout?”
“Okay!”
Miju sat down on the butterfly machine. Seated on the chair adjusted for her, she reached out and grabbed the handles.
Naturally, her arms spread wide, and her chest was thrust forward.
Wow, what a view.
I thought about how wonderful it would be if she could stay like this forever.
“Alright, let’s get your posture right and start. First, press your back and head firmly against the backrest.”
“Yes!”
“Keep your forearms—the muscles here on your arms—against the pads, and pull your arms in using your strength.”
I grabbed both of Miju’s arms and pulled them inward.
Every time I did, my fingers brushed against her soft breasts.
“Gasp!”
“Oppa, are you okay?”
“Y-yeah... I’m fine.”
I almost had a nosebleed.
“When you pull your arms in, you have to keep your head and back pressed against the seat. If your posture breaks, the effectiveness drops, and the shape of your muscles and breasts will turn out weird, so be careful.”
“Yes!”
I managed to keep my composure and continued teaching her.
I’m just teaching her how to exercise.
I’m not trying to do anything else.
I focused on the workout, brainwashing myself.
“Haaah!”
Miju let out a breath as she pulled her arms in.
As her arms gathered toward the center, her breasts were squeezed together.
A deep valley formed between them.
“Huuuuh!”
When she spread her arms again, her breasts returned to their original shape.
That natural change in shape was strangely erotic.
Gulp.
“How is it?”
“It looks good... I mean, your posture looks good.”
“Really? I’m doing it right, aren't I?”
I nodded blankly, as if my soul had left my body.
To be honest, I couldn't see her posture properly because of her breasts.
Still, even as a non-expert, I could tell her form wasn't breaking.
“Huuuuh!”
Miju squeezed her chest together again.
A deep valley formed.
Then, two mountain peaks appeared.
As I watched her exercise in a daze, a new system message popped up.
[The additional effect is not active.]
What does that mean? Miju is completely naked.
Why isn't the effect active?
[The trainer must also undress.]
Wait, what?
[Additional Option: Naked Exercise – Exercise effectiveness increases by 45% when exercising naked.]
[Includes Trainer]
So that’s what "Includes Trainer" meant?
“Ha... haha.”
But... how am I supposed to convince her?
‘Wait, do I even need to?’
Miju was already under the influence of the system’s hypnosis.
In this gym, my word was absolute.
If I made up some excuse, she would believe it.
“Hmm...”
I swallowed hard as I watched Miju work out.
Fine. Let’s do it.
Let’s just do it.
Having made up my mind, I took off my shirt.
“O-Oppa, what are you doing?”
Miju cried out in surprise as I stripped.
“Ah, didn't I tell you?”
“Yes?”
“For this exercise, it’s only natural for the trainer to strip as well.”
“It’s... natural?”
“Yeah. It’s the kind of exercise where the real effects only show up when both the trainer and the member are completely naked.”
“So it’s... that kind of exercise...”
Miju’s eyes changed for a moment.
Her surprised reaction to me undressing vanished.
“Right. Why didn't I know that? It’s an exercise where you have to strip too, Oppa. Hehe.”
I felt a slight pang of guilt seeing her respond so casually.
It’s not like I’m going to do anything bad to her.
I justified it to myself and continued undressing.
Taking off my shirt and pants was easy.
I stripped them off without hesitation.
‘But the underwear...’
I looked down at my drawers.
My dick was throbbing and dancing inside them.
Because of the sight of Miju’s naked body and the current situation, my little friend was excited and acting on its own.
It wasn't something I could control with my will.
It was embarrassing.
I didn't want her to see that I was aroused.
“Oppa, why aren't you taking those off?”
Miju was looking at me strangely because I had stopped.
Unable to withstand her gaze, I finally removed my last line of defense—my underwear.
‘To hell with it.’
I pulled my drawers down in one motion.
And there, my privates, which had been throbbing wildly inside, revealed themselves.
My uncircumcised dick twitched, its head fully exposed.
“L-let’s start the workout again!”
I shouted as if cheering myself on.
This is a workout.
It’s just a workout.
There are no other ulterior motives.
Focus.
Don’t cause an accident.
I stood next to her, making that vow to myself over and over.
I didn't even try to cover up.
In a situation like this, covering up would probably seem weirder.
My rock-hard dick swayed with every step I took, but I tried my best to ignore it.
Miju probably wouldn't care either.
Or so I thought, until I looked at her...
Miju’s face was flushed red as she stared at my swaying member.
Wait, is the hypnosis not working?
“S-so, shall we try the posture from before?”
“Yes, o-okay.”
At my words, Miju seemed to snap out of it and corrected her posture.
“Hold your breath as you apply strength, then exhale as you slowly relax.”
I stood beside her to help guide her form.
Until my rock-hard, throbbing dick brushed against her body.
“Huuuuh!”
It was a total accident.
An accident that happened while I was correcting her posture.
The pleasure rising from my privates traveled up my spine and spread through my entire body.
My body trembled involuntarily.
If I had been just a little more sensitive, I might have come right then and there...
“S-sorry. Let’s keep going.”
“Ah, yes...”
The air between us grew increasingly hot.
The atmosphere became strange.
Miju gulped and thought to herself.
‘Why am I acting like this?’
This was clearly a normal workout.
It was only natural to exercise naked to increase effectiveness.
It was the same for the trainer to undress for better results.
But why did she keep having these strange thoughts?
Her eyes kept drifting toward Jae-ho’s swaying dick.
The sight of it made her body heat up.
‘What should I do?’
She even felt like she was getting wet down there.
‘Let’s focus. This is a sacred workout.’
Miju tried to pull herself together and continued the exercise.
She desperately tried to ignore her eyes, which kept wandering to the side.
*
“Haaah, hyaaang... Oppa, that feels so good right there.”
“Pant, pant, do you like it when I do this?”
“Yes, I love it... Mmmph!”
Miju’s body shuddered and convulsed.
The breath she exhaled was ragged and hot.
My own breathing was becoming labored due to the repeated "exercise."
“Oppa, please do it a little harder.”
“Got it.”
“Haaahhh!”
As I applied more pressure with my fingers, Miju twisted her body and let out a high-pitched moan.
“Do you feel a bit more refreshed now?”
“Yes... I definitely feel much better.”