Kaito knew he shouldn't go back.
Every night he told himself, "Just one more time."
But the moment the car engine started, his cock twitched. His balls ached.
It wasn't lust anymore.
It was dependence.
Every orgasm with the tunnel girls left him empty and full at once. His body craved it, like they'd carved their moans into his spine.
And tonight, something… new was calling.
Not Reika.
Not Ami.
A different voice.
Lower. Sluttier. Hungrier.
"I want your cock in my mouth, onii-san. I want it until your brain melts."
---
It was 1:14 A.M. when Kaito's tires rolled over the tunnel entrance again.
He didn't even blink.
He parked halfway in the tunnel and leaned his seat back, already unzipping. His ochinchin sprang out, twitching hard, begging.
Pre dripped from the tip like syrup.
He whispered into the darkness, "Who's first tonight…?"
But there was no answer.
Just silence.
And then—something wet and warm wrapped around his cock.
He gasped.
"What the—?!"
---
A mouth.
Just a mouth.
Between his thighs, hovering inches above his lap, a disembodied head appeared—beautiful, young, dripping with ethereal saliva. Her lips glossy and parted. Her tongue already sliding up his shaft.
Her eyes gleamed.
"You don't know me yet, but your cock does~"
Kaito tried to move, but he couldn't. His body froze.
Invisible pressure held his hips down.
The head giggled and slowly took the tip into her mouth—
Slllrrrp.
"F-fuck… oh god…"
Her lips formed a perfect seal.
She bobbed.
Up… down… up… down.
No hands. No mercy.
Just pure, slippery suction.
She took him deep—deeper than should be possible, her throat pulling him in like it was endless.
"Nnngh~ mmnn~ chuu~"
Kaito groaned as her tongue lashed at his underside, teasing the sensitive ridge beneath his cockhead.
He arched his back.
His toes curled.
His head hit the seat rest.
He couldn't breathe.
The pleasure was too much.
---
He opened his eyes—and saw only her head bobbing violently between his thighs.
Her lips moved like a machine.
Her spit coated his balls, his lap, the seat. The smell of sex was overpowering—hot and raw.
Slrrrp. Slurp. Chup. Slap. Slurp.
"W-wait—stop—!"
She didn't.
She looked up at him with teary eyes and kept sucking.
Faster. Deeper. Sloppier.
Kaito grunted, "I-I'm gonna cum—!!"
"No."
Her voice was calm. Cold.
She clamped her mouth tight and pulled back just before he released.
"W-what?!"
His cock pulsed, begging to cum—but she stared at it, smirking.
"You don't cum until I say. Got it, onii-san?"
---
Kaito gasped, hips bucking desperately.
He needed release.
His cock throbbed angrily—red, veiny, swollen with pressure.
But she waited. Teased. Licked just the shaft. Kissed his tip like a lover.
"This cock belongs to the tunnel now~"
And then she opened her mouth wide…
And devoured him again.
---
The second blowjob was cruel.
She sucked even harder—her cheeks hollowing, her tongue swirling, her throat taking his full length without a sound. Her nose pressed against his base. His balls slapped her chin.
Kaito's mind broke.
He moaned like a girl.
"Ahh—nnghh—YAMETE—! I'll cum, I'll cum—PLEASE!"
His eyes rolled back.
His hips twitched.
He couldn't hold it.
He exploded.
A huge burst of semen fired down her throat—
Then another—
Then another.
And she just… took it.
Didn't gag. Didn't stop.
She sucked even harder.
She moaned while swallowing. Her throat flexed with every pulse of cum shooting down.
---
When he was finally drained, she licked her lips and looked up with a cocky smile.
"You taste like desperation."
Then—
She vanished.
Kaito slumped in his seat, trembling.
His cock was still hard.
Still dripping.
Still needy.
His balls… still full.
---
The tunnel whispered:
"You can cum… but you'll never be satisfied again."