Today, You're Not My Friend—You're My Pet
After my crushing defeat in the bet with Seo Ye-eun.
The next day, I clutched my wildly pounding chest and stepped out of the house.
I'd told Mom I was heading to a friend's for a study session, but my footsteps weren't leading to Seo Ye-eun's place.
"H-Here... right...?"
I pulled my hoodie low over my face, slipped on a mask, and glanced around warily as I slipped cautiously into the unfamiliar building.
Until now, we'd always shared our secret moments at Ye-eun's house, but today was different.
This morning, Ye-eun had messaged me an address, teasing that we should try somewhere new. It was a motel tucked away in a corner of the bustling street.
Hah... I must be crazy.
To think I was walking into a motel—summoned by a girl from the same Retaker's Academy, no less—with this woman's body of mine.
My heart thundered, sweat slicked my palms, but turning tail and running wasn't an option.
Yesterday, I'd gotten caught masturbating in secret in the bathroom, and that sealed my humiliating loss in the bet with Ye-eun.
Today was the day to pay the price for that defeat.
"Phew... Okay, let's just go in. Even a tiger's den is survivable if you keep your wits about you."
Muttering to myself, I steeled my nerves and slowly stepped into the motel.
I paused at the tiny front desk, scanning the area.
Luckily, it wasn't too late yet, so the place was quiet and empty.
Ye-eun and Hye-won had already booked the room, so I skipped the counter and headed straight for the elevator.
Second floor, third, fourth...
With each floor I ascended, my heart raced faster.
Finally reaching the fifth floor, I stepped out and made my way to the room number Ye-eun had given me.
Room 502.
I took a deep breath in front of the door, then carefully pressed the bell.
- Click.
"Oh, you made it? Seo-jin."
"H-Hye, Hye-won..."
"Get your ass in here already. What if someone sees you in the hallway?"
"Y-Yeah... Coming in."
It was Hye-won Kang who opened the door, her face set in a grumpy scowl.
At her urging, I stumbled inside like I was being shoved.
I carefully slipped off my shoes and lifted my head—and froze.
"Wha... What the hell is this...?"
The unexpected sight before me left me rooted to the spot in shock.
I'd imagined a clichéd motel room with red lighting and a round bed, but this was something else entirely.
Desks and chairs lined the center of the room, and a huge whiteboard hung on the wall.
The details were a bit off, but it looked just like a miniaturized version of the Retaker's Academy classroom where I attended lectures every day—a bizarre setup.
"Ngh...!"
The moment I saw those desks, memories flooded back of yesterday in the back row of the classroom, desperately enduring the rotor's vibrations.
Every time Ye-eun hit the remote, waves of stimulation crashed over me, making me drool uncontrollably.
It felt like it was all happening again—my lower belly started to heat up with a dull ache.
Doing naughty things in a classroom...
The only thing proving this was a motel room was the wide bed sitting alone at the far end.
"Oh my, our little Seo-jin's here? Don't just stand there spacing out—come here."
"Uh, uh... Yeah."
Ye-eun, lounging against the bed's headboard, flashed a grin and beckoned me over.
I shuffled closer and perched on the edge of the bed, and she gently tugged off my hoodie, speaking lightly.
"Nice vibe, right? It's a themed motel run by a sister I know—I rented it out for the whole day. After how much fun we had at the academy yesterday, I picked this room special."
"Y-Yeah... I see."
"So, Seo-jin. You know what you're here for today, don't you?"
"Hik?!"
Ye-eun's eyes gleamed coldly.
I swallowed hard, my voice shrinking to a whisper.
"S-Since I lost the game yesterday... As your pet... I'm gonna get trained with... all sorts of toys..."
"Correct. Good girl—our puppy's so smart."
Ye-eun stroked my hair softly.
But her next words were stripped of any warmth.
"Remember this well, Seo-jin. Today, you're not my friend—you're my pet."
"Hng?!"
"So no more patiently explaining each toy like last time and waiting for you. Got it?"
"Y-Yeah... Got it."
"Rules are rules, though. Let's set a safe word before we start."
Her harsh warning made me tremble, but the mention of a safe word brought a silent sigh of relief.
I'd figured she wouldn't bother with something like that for a clear-cut punishment from losing the game.
In this hellish situation, having even one escape hatch felt like tears-worthy gratitude.
"Th-Then... the safe word can be 'friend'..."
"Friend? Nice, not bad. Shout 'friend' and I'll stop anytime."
Ye-eun nodded crisply, then shoved a shopping bag from the bed toward me.
"Alright, change into this first. It's your puppy uniform."
"Y-Yeah..."
With shaking hands, I opened the bag—and let out another breath of relief.
Inside was a bikini-style outfit that barely covered my breasts and pussy.
I'd braced for full nudity and animal treatment, so even this scrap of fabric to cover the essentials felt like mercy.
Grateful for at least some shred of dignity, I hurriedly changed.
But that was my mistake.
This outfit was just Ye-eun's final act of mercy—considering what was to come.
"Oh my, doesn't our puppy look adorable with these ears?"
"Ngh...!"
"Now, you know what to do next, right? Get on all fours here."
"Y-Yeah."
Once changed, Ye-eun slipped a fluffy dog-ear headband onto my head and patted the bed.
I obeyed, lifting my ass and lowering my chest to the mattress.
Then her cool hand yanked the back of my bikini bottoms aside, exposing my asshole completely.
A thick glob of sticky, cold gel plopped right on top.
"Haaah...! Ah, c-cold...!"
"Oh dear, our Seo-jin's all cleaned out already?"
"Y-Yeah... You told me to wash up."
"Good girl~. If our puppy listens this well, maybe training will wrap up quick today?"
Her gentle tone set my heart racing again.
Admitting I'd prepped my ass for the tail plug myself was mortifying enough to die from shame.
But at the same time, an inexplicable anticipation bubbled up inside me.
Once the tail went in, I'd truly be her dog.
And then... what would Ye-eun do to me?
- Squish, schlick...!
"Haht?! Hngh, ahh...!"
"There we go~. Taking it so well now."
"Hah, hah..."
Ye-eun lightly caressed my hole with her finger, then pushed the tail plug inside.
The heavy, massive bulk forced its way mercilessly into my tight entrance.
It wasn't my first time, but that weird, unpleasant pressure—the unyielding metal crushing my insides—never got easier.
My lower belly cramped like I had a stomachache, filling with a bizarre fullness deep within.
Trembling with my ass up, I heard footsteps approaching from behind—Hye-won.
- Smack!
"Eek?!"
"Damn, our little mutt's got some pose."
"D-Don't...! Hng?!"
"Tail's in—get up, bitch. We've got more to put on ya."
As Hye-won raised her hand like she was gonna smack me again, I scrambled upright.
Sitting properly was out of the question now.
Plant my ass down, and that lump in my rear would shove even deeper.
So I stood there awkwardly, waiting.
Hye-won smirked at me, then grabbed paw-shaped gloves and slipped them over both my hands.
Finally, Ye-eun fastened a jingling leather collar around my neck.
Now I couldn't use my hands freely or move easily.
Ye-eun tugged the leash lightly, pulling me toward her, then reached out to stroke my chin softly.
"Perfect. A real pretty puppy now~."
"Hah... haa..."
Hands useless, ass stuffed with that grotesque metal tail, collared like an animal.
Any comfort from the bikini covering my privates vanished without a trace.
Ye-eun tugged the leash again, drawing me close, and stroked my chin once more.
"Our cute little pup—gonna be good for training, right?"
"...Y-Yes."
"Good~. Then before we dive in for real."
A smile flickered across her lips.
A predatory grin, lewd and ravenous—like she could devour me any second.
"Shall we add some special toys just for our Seo-jin?"
"Sp-Special toys?"
"Yup~. You got caught jerking off in the academy yesterday, remember? That's why you lost the game."
"Hngh...! Y-Yeah..."
"So, as punishment, a few extra toys to spice things up."
Ye-eun scratched my chin tenderly, whispering sweetly.
But the chill hidden in her soft voice sent shivers racing up my spine.
The tail plug alone was pushing me to the brink of sanity—now extra punishment toys on top?
"Wh-What... kind of toys...?"
I asked in a quivering whisper.
But Ye-eun just tightened her grip on my chin slightly, flashing a pretty eye-smile.
"Oh, pup. What did I say earlier? No friendly explanations in today's training."
"Ah..."
"It's punishment—spoiling the surprise ruins the fun. If it's too scary, say the safe word now and go home."
Ye-eun released the leash, leaning back against the headboard and crossing her arms—like daring me to run.
Say the safe word and head home.
That one line muddled my brain.
I wanted to scream "friend," yank out this hideous tail, and bolt.
But after walking here on my own two feet, enduring the shame, emptying my ass for this... to quit before it even started?
That hollow defeat—worse, the regret gnawing at me—made it impossible.
It's fine. There's a safe word. If I can't take it, I'll use it then.
Just a few extra toys.
I'd already given up my ass—what more could there be?
Arrogant delusion, through and through.
"N-No... I'll do it. Just... put them on me..."
"For real? No take-backs if you cry later."
"Yeah... It's fine."
"Great. Then close your eyes, pup."
The moment she gave permission, my vision went pitch black.
She'd bound my eyes tight with some thick black cloth from who-knows-where.
"Eek...! I-I can't see..."
"Duh. It's a blindfold."
"Is this... the punishment?"
"Part of it. Blocking sight makes your other senses way sharper."
Blindness brought a wave of anxiety, but I also sighed in relief.
I could endure just a blindfold, easy.
Better yet—no seeing my own pathetic state, so less shame, right?
Naive hope, shattered soon enough.
"Alright, time for the other toys?"
"Yeah..."
With Ye-eun's silky voice, my chin lifted again.
Heart pounding with dread and excitement, not knowing what was coming—then.
"Mmph?!"
"Stay still, pup."
A cold, soft rod slipped between my lips and pushed inside.