Yuri’s fingers tighten around your cock, even though she’s struggling to fit your girth into her hand. Her grip is warm and tight. The first slow stroke sends a shock straight through your spine. You groan before you can stop yourself.
“Mm… already making noises?”
She murmurs, thumb circling the ridge of your tip as she drags her hand down again.
“You really are hopeless.”
Her pace is slow, agonizingly slow, like she wants you to feel every inch of her touch. She pulls her hand back up, wrist twisting just slightly, and your hips jerk involuntarily.
Her chuckle quietly fills her office.
“Look at you… misbehaving even when you’re sitting still.”
Her eyes flick up to meet yours.
“Is this what you do instead of homework? Stroke yourself and hope someone catches you?”
You open your mouth to answer, but she speeds up suddenly. Her hand glides quicker and tighter. A startled groan tears out of your chest before you can stop it. Your head tilts back against the chair.
Yuri’s voice softens, but her words don’t.
“That’s it… let me hear you. You like this, don’t you? Being touched by your teacher.”
Then she slows again, so suddenly it feels like your body is trying to chase her hand.
“Not so fast.”
She smirks.
“I choose the pace. Not you.”
She strokes lazily, almost teasingly, her palm sliding from base to tip with infuriating control. You clench your jaw, trying not to beg for more pressure, more speed…anything.
Her thumb glides over the slit again.
“God…”
She breathes under her breath, not even realizing aloud.
“You’re so… big.”
Her hand pauses. Her eyes widen for the second time that afternoon.
“It’s too much for one hand.”
She whispers to herself.
And then, her second hand slides in beneath the first.
The sensation nearly knocks the air out of you.
Both hands wrap around your length, her fingers barely meeting as she squeezes, testing your girth with a breathless sound you’ve never heard from her before. She starts stroking again - two-handed this time - her lower hand curling and dragging up while the upper twists down.
Your hips lift off the chair, a raw groan ripping out of you.
Yuri’s breathing matches yours now, heavy and uneven. Her white top strains against her chest as she leans closer. Her hair brushes your stomach, her nails dig lightly into your skin as she works you with slow, controlled, overwhelming strokes.
“That’s it…”
She whispers, her voice almost trembling as her eyes drink you in.
“Look at you… You’re huge. Too big for my hand… too big for any good boy.”
She squeezes harder with both hands.
“But you’re not a good boy, are you?”
Her pace quickens, just enough to make your vision blur at the edges. Enough to force another groan from your throat.
“You’re my bad boy. My bad student.”
Her lips are inches away from your twitching head.
“And I’m going to make sure you learn exactly how to behave for me.”
Yuri’s grip tightens, both hands gliding up and down your shaft in slow, twisting motions. Every stroke sends another bolt of pleasure through your body. You can’t keep quiet. Low groans and shaky breaths fill her office.

You meet her gaze, letting your eyes flicker down to her mouth. She notices. Her lips curl into a knowing smile. Without breaking eye contact, she leans in even closer, so near you can feel her breath against your skin.
“You like watching me, don’t you?”
She teases, voice low and rough with her own excitement. Her tongue slides over her lips, gathering a slick sheen of spit. Then she lets her mouth fall open, letting a long string of saliva drip from her tongue down onto your cock. The wet warmth lands on your shaft, making you twitch in her hands. But she doesn’t stop. She catches the spit with her palm and smears it over your length, working it in with slow strokes. The added slickness only makes her grip more intense. Her hands slide easily up and down, twisting and squeezing.
“Look at this mess you’re making me create.”
She rubs her hands together and strokes your cock with both fists, watching the spit glisten in the light.
“Do you think you deserve this? All this attention just for being a brat?”
You manage a cocky grin through the haze.
“You seem pretty into it, Ms. Kwon. Are you sure you’re not rewarding me for bad behavior?”
She lets out a half amused, half offended laugh, her hands never slowing.
“I’m giving you exactly what you need. A lesson you’ll never forget.”
To drive her point home, she leans forward again, letting more saliva gather on her tongue. Another strand drips down, pooling over your tip before she smears it down your shaft with her palm, spreading it until every inch is glossy and slick.