Another First-Time Milestone
"Ch-Chae-ah... even so, this is a bit..."
"You don't even know how big of a mistake you made, unni."
"I know that. I know, but..."
The punishment I got for masturbating in the room while my girlfriend was there was to become a dog, abandoned in the bathroom.
Dog tail plug, dog ear headband, and a collar.
With those three items, I became Chae-ah's dog.
"I'll tie the collar here."
Chae-ah tied the collar to the door handle.
The knot was tied so tightly that I knew it wouldn't come undone easily.
"Stay put obediently until I'm done working, my good doggie. Got it?"
"W-Wait just a..."
-Thud!
I tried to grab her, but she shut the door heartlessly as she stepped out into the room beyond.
And just like that, I became a lone dog, collared and abandoned in the bathroom.
"How do we even think alike like this."
For Chae-ah's punishment, I'd planned to make her a bunny girl with a bunny tail plug shoved in.
It was strikingly similar, both of us thinking of using a tailed plug.
"We don't need to be alike in this."
I'd always heard that people who love each other start to resemble one another, but realizing our tastes had been similar from the start made me think we were just a perfectly compatible couple.
"Why'd she tie it so short, though."
She'd secured the collar so tightly that my range of movement was ridiculously limited.
Tying a dog leash this short would be straight-up illegal.
"Haa, what do I even do."
Suddenly left to this abandonment play, I just stared blankly at the bathroom wall.
I was thinking it'd be nice if she'd at least left my phone, when I started to plop down—and that's when I felt the tail plug get squished.
"Hng...♡ Right, I've got a tail."
Sitting comfortably was impossible.
But staying in a quadrupedal position like a real dog made my knees ache against the hard floor.
I settled into a position where my butt barely touched down.
"This is too much. If the art turns someone on that bad, it's high praise from the artist."
As I thought this abandonment play was excessive punishment, I tried putting myself in her shoes.
If I saw my girlfriend masturbating right there in the same room, ignoring me—
"Yeah, even I'd feel hurt in my pride."
I had no choice but to admit my guilt.
I'd tried excusing it as just being too turned on by the drawing, but Chae-ah wouldn't hear a word.
Even when I said I didn't want to interrupt her afterward, same thing.
If this abandonment play would cool her anger, I'd just have to take it.
"Bored."
At least she hadn't made me act like a dog for real. That was a relief.
If she had, pretending to be a puppy in front of someone seven years younger would've crushed my self-esteem.
"Why is she so obsessed with my ass, anyway."
When she inserted the dog tail anal plug, Chae-ah had grinned ear to ear.
Her eyes had that look like she wanted to devour my ass first if not for yesterday's events. Bonus points for that.
Of course, it wasn't fair to call her weird when I'd been planning a bunny tail plug myself.
"Wonder when it'll end."
I was counting the bathroom tiles one by one to pass the time when—
"Gotta pee..."
My bladder sent the urgent signal that it was full.
Two coffees before closing, one more while pouring her drink, plus a liter of water.
Considering I hadn't gone since the last time, it was no wonder my bladder was at its limit.
"The toilet... ngh...!"
I tried to move toward the toilet, but the short leash yanked taut.
Making it to the toilet was impossible.
"What the hell, why so short...!"
I fiddled with the knot on the door handle, trying to loosen it even a little, but it only tangled worse.
"Ah, Shin Chae-ah...!"
As the signals grew urgent and my body tensed, I yelled in a sharp voice.
That instant—
-Bzzz! Bzzz!
"Hiiik♥"
Suddenly, the dog tail started shaking up and down, and vibrations rumbled from the anal plug.
"Crazy... what the hell is this...! Hyauu♥"
I couldn't believe I even had an anal plug like this in my collection.
But now wasn't the time to worry about that.
Chae-ah must've thought my yelling from inside meant I wasn't repenting, just annoying her, and hit the button.
Pulling out the tail might mean bigger punishment, but it was better than giving up my human dignity.
"Hrngut...♡ Q-Quick... pull it out...♡"
-Bzzzzzz!
"Huihyaaaang♥"
Was there CCTV or something?
Just as I grabbed the tail, the anal plug's vibrations intensified.
"W-Wait... crazy...♡ Hiiik...♡"
The stronger vibes affected my pussy too.
And it didn't stop there.
It started pulsing and throbbing across my lower belly.
"N-Nooo...♡ If I cum...♡ Huu...♡"
I clenched with all my might to hold it, but with the intense vibrations hitting my bladder now, it was impossible.
"Huuuhiyaang♥"
-Spluuurt!
In the end, on all fours like a dog, I pissed all over the bathroom floor.
The sight of the tiles turning yellow before my eyes was utter humiliation.
Despair at failing to preserve my human dignity, and hating myself for moaning in pleasure amid it all.
"Hyaaaang...♡ S-So relieving...♡"
No words could describe the cool rush as the pent-up piss poured out.
My body shivered not from the anal plug's vibes, but from finally letting it all go.
"Haa... haa...♡ S-Shin Chae-ah... you're... d-dead meat..."
Once it was over, hatred for Chae-ah welled up.
The humiliation was so intense, tears welled in my eyes.
"Revenge, huh...?"
If this was payback for pissing in the staff room bathroom, I'd take it.
But I'd return the favor.
As someone with seven more years of life experience, I'd teach her that revenge breeds revenge.
"My doggie, wait long? Work's done now, so I can play with—huh?"
Chae-ah opened the bathroom door with a bright smile, but clamped her mouth shut mid-sentence.
She'd spotted me and the soiled floor.
"Shin Chae-ah..."
"U-Unni... I-I didn't know..."
"Untie me first."
"Y-Yeah..."
Chae-ah struggled with the knot—I'd messed with it too—but eventually used a key to free the collar, releasing me.
"Unni, shower first...? You're all messy... I sweated a ton focusing too, wanna wash up again. Haha..."
I staggered over and hugged her tight.
Judging I wasn't mad, she gently patted my back.
"Unni, let's shower together and then sleeeep. You must be exhausted, right?"
"Come to think of it, you said you've never tried anal masturbation yourself, huh, Chae-ah?"
"Huh...?"
"There's a saying: before poking someone else's hole, poke your own first."
My hands, wrapped around her back, slid down to her ass.
One hand spread her cheeks; a finger from the other rubbed her anal entrance.
"Hingyaat...♡ Unni...?"
"Wanna let unni open you up today, Chae-ah?"
"Huh...?"
*
"U-Unni... still, suddenly like this..."
"Suddenly? It's just opening you up a little earlier than planned, Chae-ah."
"Uwaaa... embarrassing..."
"You're all prepped anyway, right? Relax, don't be shy."
Chae-ah loved any "first" she shared with me.
Anal would be no different.
"C'mon, can't we do a different position? This is too... embarrassing..."
"This position's best for first-time anal play. Makes it easier to slide fingers in."
Despite whining about embarrassment, Chae-ah's pussy was drenched in arousal fluid.
I didn't know when it started, but it meant she was looking forward to anal play, words aside.
"Okay, relax."
I coated the finger condom on my finger with lube and slowly pressed it to her anal entrance.
"Hngut...♡ Cold...♡ Feels weird too..."
"It's fine, Chae-ah. I'll count to three. One, two..."
-Shlurp!
"Huuuhikyaang♥"
I only counted to two before shoving my index finger deep into her ass.
She gaped her mouth and let out a mighty moan.
"Y-You said on threeee...!"
"Oh, did I? Unni's getting old, y'know."
"You're not even thirty yet, no way..."
-Shlurp! Shlup!
"Huuuhiiiik♥"
As she struggled to speak, I tapped the upper wall inside, stimulating her pussy too.
Definitely her first time—moving even one finger was tough for her.
"F-Feels so straaange...♡"
"Strange, but feels good, right?"
"D-Dunnooo...♡"
"Strange? It'll feel good."
My other hand spread her labia wide.
Each press against the barrier made her entrance twitch, her inner walls swelling visibly.
"Hyaaaang♥ U-Unni...♡"
"It's okay, Chae-ah. Just one finger today, nice and steady."
"R-Really...?"
"Yeah, really."
I doubted we could stretch to two fingers today anyway.
"But we'll play nice and fun with just one. Got it?"