The 12th rule—servicing Rio, the girl who draws so well, right in her studio.
The 12th rule—servicing Rio, the girl who draws so well, right in her studio. Sniff sniff. The thick scent of paint from my childhood art room memories filled the air.
A spacious room designed with dark wood under red curtains. Inside stood a massive wooden easel, countless tubes of paint in every color, and brushes of all sizes lined up neatly.
Today, too, with my handcuffs off, I entered Rio's house and sat on the small chair there, slowly admiring the paintings she'd created.
Then Rio came in late, wearing nothing but a loose shirt that left her plump pussy fully exposed, and sat facing me.
I could see sour liquid trickling from between her wrinkled folds, pressed flat against the chair. Ever since we first met, I'd never seen her properly dressed.
"Teacher, this is my studio where I paint. It's a bit messy, huh?"
Hehe.
Rio fidgeted with her fingers, looking a little embarrassed.
"I usually don't show it to anyone, but since something great happened today, I'll make a special exception just for you."
"...Thank you. But what happened? Something at school?"
"Yeah! So, I overslept this morning and rushed to school without even washing up?"
In other words, she'd gone with my cum still in her mouth and her pussy juices unwiped...
"Then my senpai came up to me first and asked if something was wrong!"
"R-Really? That must've made you happy..."
"Yeah! It made me so happy! Anyway, we talked all day at school, and ta-da~."
Rio held out her smartphone screen to me.
"I got senpai's phone number!"
Seeing her so thrilled made me happy for her, but after two days together, a twinge of bittersweet reluctance welled up.
I was forcing an awkward smile to hide it when—
Whoosh!
Rio's flushed face buried into my lap as she climbed on and hugged me with all her might.
"This is all thanks to you, Teacher. Without you, I probably would've run away like always."
Squish!
Her soft breasts pressed against me, creating a delightful pressure.
I froze in surprise at her sudden move, but as I stiffened, I faintly heard her heartbeat.
Thump, thump.
A warm smile crept onto my face unbidden. I couldn't help but pull her back into a tight embrace.
We stayed like that for a while, wrapped in each other's arms, until Rio spoke.
"So, Teacher..."
"Yes, miss?"
"As a reward, I'll let you watch me paint today. So don't look away—no matter what. Got it?"
I nodded, and she slipped down from the chair gracefully.
She pulled the canvas on the wooden easel slowly toward me, then plopped back onto the chair.

Her shirt hem rode up naturally, exposing her bare, smooth lower half once more in all its glory. Her chubby pussy, squished against the chair, glistened wetly, its lips spread wide open toward me.
"Alright, let's begin."
Rio picked up a small brush, her face beet red.
She glanced at me sidelong, then started painting on the canvas with her trembling hand.
Swish, swish.
With every stroke of the brush, her breasts and ass jiggled enticingly. Through her taut shirt, on the verge of bursting, I could see her pink nipples suffering, pressed against the damp fabric.
I spent a good while admiring her stunning figure like that.
"Teacher, how do I look while painting...?"
"...Like a beauty from a masterpiece painting."
"...Really? Would senpai like seeing me like this?"
"He definitely would. Right now, you look like a one-of-a-kind goddess."
That was the moment.
Drip, drip.
Suddenly, a tangy scent rose amid the paint-filled studio.
I looked down at her legs to find the source. Transparent liquid pooled on the chair, dripping in threads to the floor.
Her eyes were fixed intently on the painting, but her hand kept drifting downward.
"Teacher... my pussy's throbbing again."
"...S-Suddenly?"
"Yeah... I can't take it anymore. Soothe it like yesterday."
"Should we go to the bedroom?"
"No, do it here. Once I start painting, I can't stop."
"But how here...?"
Spread.
She opened her legs wide, as if inviting me in. Tears welled in her embarrassed eyes, but her gaze stayed on the canvas.
"Rio's precious parts are yours for now—so play with them however you want."
"...Then, excuse me..."
I stood and sat facing her luscious pussy. It welcomed me warmly, oozing love juices mixed with tiny bubbles from its plump folds.
My eyes caught the small brush beside her. Its round handle was packed with soft bristles, smooth without a single rough edge.
A great idea flashed in my mind.
"M-Miss."
"Yeah...?"
"Can I borrow this brush for a sec?"
"The brush? Suddenly?"
I snatched it up before she could fully respond. Parting her pussy lips with my fingers, I inspected the pink inner flesh.
From the entrance below, her pee hole, and the little bean-like clit—her most intimate spots were laid bare right before my eyes.
Steam rose faintly.
Delicious pheromones wafted from her winking entrance.
"W-Wait. What are you gonna do?"
Squish.
Startled, she tried to clamp her thighs shut, but I held them apart and brought the brush to the tiny clit at her crotch's end.
"Hngh♡!"
The soft bristles touched her clit, and she clapped a hand over her mouth.
"Th-This... it's ticklish, but feels so weird... My hips are moving on their own, I can't focus on painting—eek!"
This time, I dragged the brush slowly down from her clit to her perineum. It felt like I was painting not on canvas, but inside Rio's body.
Every time the bristles delved between her folds, her body shivered.
Press.
She grabbed my head to steady herself. Looking up, her lips quivered, but her eyes remained locked on the canvas.
Where was her weak spot? I scoured every nook of her pussy with the brush soaked in her juices, but no luck.
Rio's hair-trigger pussy twitched happily no matter where I touched.
Swish, swish.
"Hoo...♡ Hooo...♡."
Even then, she took deep breaths, wielding her upper brush. But the more fiercely I worked the lower one, the weaker her upper strokes grew.
Her movements had slowed noticeably. Her gaze shook like an earthquake over her swollen breasts. She was desperately hiding her expression.
Seeing that sparked my mischievous side again.
I slid the brush handle slowly into her entrance. Then, as I pinched her clit lightly with my fingernail—
Riiip!
She slashed hard across the canvas with her brush hand.
"Haaaaah♡!!"
Sploooosh, spraaay!!
Tidal squirt erupted from her pussy like a shower, hot with her body heat, splattering my face and blinding me.
"Haa... Haa..."
Rio screamed loud enough to shake the room, then plopped her fluffy breasts atop my head with a grumpy pout.
"What now... You ruined my painting, Teacher... I was working so hard on senpai's face..."
...Really?
I wiped the juices from my face at her complaining tone and looked at the canvas. Below the man's neck was a thick red slash.
Nice shot.
The painted general's throat slit gave me a vicarious thrill. I cheered inwardly.
"All your fault..."
"S-Sorry."
"...Then soothe me."
"...Huh?"
Sheesh!
Thump, thump!
Annoyed at my double-take, she lightly pounded my back with her slender fists. Then, in a shy whisper:
"I'm really mad now. Soothe my pussy... like yesterday... with your mouth..."
"...Got it."
At her command, I faced her pussy again.
Post-climax, her entrance winked in spasms. Gripping her soft ass cheeks, I brought my mouth to her weeping lower lips and slowly lapped along the loosened slit.
"Ahh... Your mouth feels so warm and good, Teacher. I wanna keep it plugged in me every day..."
Rio hugged my face tight, stroking my hair.
I agreed completely. If I could eat out Rio's pussy every day—Rio with her perfect face and body—I'd gladly take any Toilet treatment.
So in this moment, I poured my heart into lavishing her pussy with affection.