The Thinking Chair's Solitary Torment
After getting caught like a dog while masturbating against the desk corner during a CSAT study session with two delinquent girls who treat me like their pet cat on the thinking chair.
“Mmph, hngh…!”
“So, how is it? Comfy on the thinking chair, my little kitty?”
“Hngg…! Brrmmph!”
I'd become their pet Lee Seojin again, and now I was back on the thinking chair, receiving my punishment.
“Mmmph…! Hn, brmph…. Hnngh….”
“It's okay. I'll be gentle with you today.”
“Mmm… brrngh….”
Seo Ye-eun gently stroked my cheek and whispered in my ear, but with the ball gag strapped in my mouth, I couldn't respond at all.
My arms were bound behind my head, wrists tied together, and my legs were spread wide in an M-shape, ropes securing them tightly.
I couldn't close my legs to hide my pussy or lower my arms to cover my breasts.
I'd become utterly shameless and vulgar.

How did it come to this.... I didn't want it to go this far.
Yeah, honestly, I'd secretly hoped those two delinquent girls would do all sorts of lewd things to me.
I'd even fantasized about being their vulgar bitch with a collar around my neck and a puppy tail plug in my ass, showered with affection.
But that didn't mean I wanted to be forcibly tied up like this on the living room sofa.
“By the way, does my kitty get turned on even in this humiliating situation?”
“Mmph…! Hnngh….”
“Your reactions are intense~.”
At the sound of Seo Ye-eun's voice, I shook my head furiously.
No way. I wasn't some hopeless pervert getting off just from being tied up.
This was just a natural physiological response from the embarrassment—I couldn't help it.
“Shaking your head like crazy~. Does that mean no?”
“Hngg!! Mmmngh…!”
“Hng~, really? But you know….”
- Squish…!
“Heeengmph?!”
“Your pussy's being honest, gushing love juices because it's so turned on, isn't it, my kitty?”
Seo Ye-eun's finger slipped inside my pussy, then slid out along the slick outer lips.
What the hell? This felt weird.
Her touch had always made me react sensitively down there, but with the blindfold over my eyes, it was even more intense.
I had no idea where she'd touch next.
She could go for my breasts, or pry open my wet slit again and mercilessly tease my clit.
The thought mixed fear and a strange anticipation rising inside me.
“Leaking like this in front of your owner, with your pretty pussy and tits all exposed~.”
“Hnn, mmph…. Brrrm….”
“Seojin's such a slutty little cat, isn't she?”
- Flick!
“Hibeeeng?!”
“See? Just lightly flicking your nipple, and you're already dying of pleasure.”
“Hnn, mmmngh….”
Seo Ye-eun's finger flicked my stiffly erect nipple at the center of my breast.
A sharp jolt shot through my tense body, making me jolt.
She toyed with it gently like playing a game, then suddenly snapped her finger to smack it, repeating the process.
Each time, a prickly itch and electric thrill surged through me.
Please, stop…! This feels too weird…♡
I couldn't just let myself be violated without resistance.
With that thought, I twisted my body desperately, trying to loosen the bonds.
But the ropes didn't budge an inch. Instead, every thrash made them dig deeper into my skin.
“Hng~. Trying to escape? No can do—I tied you extra tight today in case my kitty might rebel~.”
“Brrmph?! Hnngh…!!”
“You won't be freed until you've fully received your punishment on the thinking chair. Get ready.”
Her languid voice came with a soft caress across my face.
As her fingers traced my cheeks and the lips stretched around the gag, goosebumps erupted all over me.
It was an overwhelming pressure, like she was imprinting deep into my bones that she had complete control over my body.
The moment I felt it, more juices gushed from my pussy.
This was bad. I was turning into a perverted female cat craving pleasure even while bound.
“So, my kitty, anything you want to say one last time before your thinking chair punishment?”
“Brr, mmph…! Hnngh….”
“Oh, right. Can't talk with this in~.”
- Click
“Hnn… pfhhemp?!”
“There, wanna talk now?”
Seo Ye-eun, who'd been admiring my pathetic state, unbuckled the strap at the back of my head and removed the gag.
The second my mouth was free, I gasped desperately.
I had to stop this now.
If it kept going, things might get really weird.
“Haa, haa…! Y-Ye-eun… We really came here to study, right? Yeah?”
“Hng~?”
“You can't just tie me up like this in the living room all of a sudden….”
- Pinch!
“Heeek?!”
But before I could finish, Seo Ye-eun's fingers clamped my nipple and twisted viciously.
“Haa, ng?! W-Wait… Hiyaaang♥”
“Wrong. Looks like my Seojin still hasn't grasped the situation.”
“Huu…? Heeek?!”
“The one who came to study is my friend Lee Seojin. The one tied up with legs spread in the living room is my cute pet~.”
“Huu…?”
She smiled sweetly, releasing my nipple, then leaned close to whisper in my ear.
“Now, before my Seojin starts having all sorts of fun with her owner, there's something we have to set first, right?”
Her words sparked a realization in my mind.
Petplay, and the magic word to stop this madness at my limit.
The safe word.
That's right—I still hadn't set the only way to end all this.
“Come on, Seojin. Wanna say it again?”
“Hnn….”
“No last words before your thinking chair punishment?”
Her hand began softly stroking down my lower belly.
A chilling warning: if I stalled even a little, she'd plunge her fingers into my pussy and grant another horrific orgasm.
I opened my mouth in panic.
“S-Safe word…! CSAT! Please make today's safe word CSAT…!”
“Oh? That's my kitty's last words?”
“M-Mm…. Yeah, please….”
At my desperate plea, Seo Ye-eun let out a satisfied chuckle and pulled her hand away from my belly.
“Alright, got it. Last words from my kitty: received~.”
I let out a deep internal sigh of relief.
Good, she allowed a safe word again.
This time, I absolutely wouldn't forget.
If Seo Ye-eun's play got too much, I'd yell "friend" without hesitation.
Just as I started to relax a bit, having secured my final safeguard—
- Snap!
“Hngmph…?!”
“Shall we make you quiet again~?”
“Brr, hnngh!!”
The gag from moments ago forced its way back between my lips.
The holed silicone ball pried my mouth open, and the belt straps tightened around my cheeks and the back of my head.
Then came the click of the buckle securing it.
Sealed shut.
I was silenced again.
“A kitty on the thinking chair should be quiet. This suits you perfectly.”
“Hng…! Brrrmmph!”
“Safe word's all set now, so just think quietly.”
Seo Ye-eun gently stroked my hair.
Was she really going to leave me bound like this?
Legs spread, pussy obscenely exposed, nipples stiffly erect, sitting on the chair.
And without being able to touch my pussy or breasts at all.
My body trembled again.
I'd rather she shoved some toy in me at least.
“Oh, my kitty might get bored during punishment, so how about a fun toy to keep you company?”
“Hnn…?”
“You'll love this one~.”
With those words, something heavy and blunt pressed against my fully exposed pussy.
The round, puffy silicone texture felt familiar somehow.
Yeah, something like this might be better—at least I'd get some stimulation.
But when I heard a button click below, I realized how wrong I was.
- Vrrrrmmm!
“Hngggmph?!!”
“Ooh, you seem to like it a lot.”
“Hnn, ngh… mmmph! Hnngh!!”
“This should keep the thinking from getting boring, right?”
Ferocious vibrations assaulted my lower half.
The merciless motion ignored my state entirely, slamming violent stimulation through my body.
No, this was wrong. I couldn't handle this.
If it kept going, I'd be in real trouble…!!
“Oh right, can't forget the top~.”
“Hmph?!”
- Pinch!
“Hnnngh…?!♥!”
Cold clamps bit down hard on my erect nipples, followed by a stinging vibration that latched onto them.
It felt just like Seo Ye-eun viciously pinching and twisting with her fingertips.
Overwhelming pleasure assaulted me from above and below.
As I writhed uncontrollably, Seo Ye-eun's satisfied laugh echoed from afar.
“My, my kitty loves her toys so much~.”
“Mmph…! Mmmnnngh!!”
“Now, play nice with your toys and think obediently.”
“Brr, mmph…!”
“Hye-won and I will be back in the room.”
“Hnnk…?! Hnngh…!!”
Wait, leaving me like this and going back inside?
That meant no matter what state these brutal toys reduced me to, I couldn't escape until Seo Ye-eun returned.
No, that's really no. Being abandoned like this would be a disaster…!!
“Hnnngh?! Mmph, brrrngh!!”
“Bye, my kitty. Think hard~.”
“Hbbngh…!”
I shook my head desperately, moaning, but her response was firm.
After lightly petting my hair, Seo Ye-eun turned away with Kang Hye-won, footsteps fading from me.
- Click
The door shut firmly, and silence blanketed the empty living room.
“Hnn…?”
What? Did they really… actually leave?
- Vrrrrmmmm!
“Hngph?! Brrrngh…!”
Wait nooo…?! The toys, this stimulation is too much…!!
Arms and legs bound to the sofa, no escape. Twisting didn't dislodge the vibrating toys clamped to my pussy and breasts.
Mouth sealed, unable to call for help or scream the safe word—perfectly restrained.
Left alone to cum in this state.
Y-Yeah, Ye-eun… I was wrong. Come back.
- Vrr! Whirrr!
“Hmph?! Ng, brr…. Mmmnnngh!!”
Help me, save me! Please just once!!
I cried out desperately in my mind, but no response came from the firmly shut door.