Naruto was trembling.
Slick with sweat, thighs twitching, abs spasming with every denied climax.
He had been edged more than a dozen times—each orgasm coiled and crushed under the force of Sasuko's chakra rings, tightening at the base of his cock, preventing release at the very last second.
His eyes were glazed.
His breath came in short, ragged gasps.
His cock—red, veiny, leaking constantly—throbbed against the Uchiha's dripping pussy as she rolled her hips slowly, never letting him all the way in. Never giving him what he so desperately begged for.
She looked down at him, sweat gleaming on her pale skin, Sharingan spinning with ruthless pleasure.
"You look like you're about to cry," she whispered, licking his jaw. "Is my good little fox breaking?"
Naruto whimpered.
"S-Sasuko… p-please… I can't—"
"You can," she purred. "And you will."
Her chakra threads tightened around his wrists and ankles, crackling with red lightning. His entire body arched as the pressure built again—explosive, unavoidable…
And she stopped.
Again.
"NO—!" Naruto cried, shaking violently.
Sasuko grinned darkly, leaning in to kiss his throat.
"I want to feel it… when you snap."
She slid his cock between her folds again, soaking herself in his precum, and pressed her thumb against his pulsing tip. She could feel it—how close he was. How dangerously close.
Her chakra wrapped around his cock like a vice—squeezing, rippling, milking without mercy.
"You're going to cum inside me," she moaned, sinking halfway down, letting his tip stretch her open. "And when you do…"
She leaned close, lips to his ear.
"I'm going to brand you."
His heart pounded.
His cock twitched.
She slammed down.
And everything shattered.
"FUUUCK—!" Naruto screamed.
His cock erupted—violently—hot, blinding waves of cum spilling into her cunt. She screamed, her own orgasm slamming into her like a storm, squirting hard enough to soak the mat beneath them.
But Sasuko wasn't done.
While his cock throbbed inside her, she activated the Uchiha Binding Seal—a red mark glowing across his pelvis, just above the base of his cock.
The mark flared.
It linked his chakra to hers.
Permanently.
"You're mine," she whispered, eyes glowing.
Naruto's head rolled back.
His body spasmed once more.
And then—
He blacked out.
The tent went still.
Sasuko breathed heavily, still impaled on his cock, the seal pulsing between them.
But then—
The air shifted.
The ground trembled.
Her eyes widened.
A deep growl echoed from Naruto's throat—not his voice.
The seal on his stomach flickered.
Crimson chakra began to swirl beneath the skin.
The Nine-Tails… stirred.
"This isn't over…" a deep voice whispered within him.
Sasuko looked down in awe and fear as red chakra coiled around his limbs like smoke, licking her thighs, tasting the seal she'd carved.
Naruto's eyes cracked open.
No longer blue.
Burning red.