It's All Because You Have Such a Lewd Body!
Smack. The sound of flesh slapping against flesh echoed loudly through the room. Arcia's arms gripped Ian's body tightly. As if binding him to prevent any escape, firmly.
"N-Nuna..."
It was a voice thick with fear. As if sensing what was coming, Ian called her "sister" for the first time.
But—
Arcia showed no sign of mercy.
Smack.
"Aaak!"
Her movements grew rougher once more. The room filled with mingled gasps, moans, and dull thuds.
"A... wait just a sec... Nuna..."
Ian twisted his body, trying to pull away. But Arcia's hands clamped down harder on his shoulders.
"No."
She let out a soft chuckle.
"Be a good boy, won't you?"
Smack.
"Ugh...!"
Each time Arcia rocked her hips, Ian's body shuddered. The harder he fought to escape, the more an odd sensation bubbled up from deep within.
Smack—smack—smack—
Arcia began shaking her hips in earnest. From Ian's cock—already hypersensitive after one climax—a brain-melting wave of pleasure surged forth.
"S-Stop..."
Ian's lower body spasmed wildly, beyond his control. His body, which had already hit its limit once, crumbled again in no time.
"A... aaah...!"
His hips bucked upward in convulsions. His whole frame shook violently. And his cock, sensitive to the extreme, finally gave out and climaxed once more.
"Aaak!"
A raw cry—half scream, half moan—burst from Ian's throat.
"Oh my."
Arcia tilted her head. Her expression feigned surprise.
But—
The corner of her mouth curved upward just a touch.
Still, her movements paused, granting Ian a fleeting moment of rest. And after two climaxes, his cock simply couldn't hold on any longer.
"Guess it won't do."
Drip. Ian's cock shrank and slipped free from inside Arcia.
Ian gasped for breath.
"Ah... ha... ha..."
His body still trembled.
Then—
Crunch!
Arcia's nails dug viciously into Ian's shoulder.
"Ughk—!"
Her nails pierced flesh. Crimson blood trickled down.
Yet Ian, adrift in the lingering haze of pleasure, couldn't snap back to reality.
That was when.
"#@%$#!"
An arcane tongue spilled from Arcia's lips. The language of incantations. Her hand began to glow red. The crimson light seeped into Ian's shoulder.
"Ugh... Nuna... let's... rest a bit..."
Ian finally gathered his wits and pleaded, but Arcia ignored him, lost in her spellcasting.
The red glow intensified. Slowly, crimson lines etched themselves across Ian's shoulder. As if someone were carving a pattern into his very skin.
"U... ah...!"
It burned. A searing heat radiated from his shoulder.
But Arcia's face remained utterly serene.
"Just endure it a little longer."
She whispered tenderly.
"Now you're..."
The red light flared brilliantly.
Zing—
And a vivid red Slave Mark took shape on his shoulder. Like a brand.
"Done!"
Arcia beamed. As she pulled her hand away, the crimson glow faded gradually.
Ian panted, staring down at his shoulder.
"What... is this...?"
A faint red pattern lingered there.
"It's fine."
Arcia said breezily.
"It's a ritual that boosts mana sensitivity."
Then she placed her hand over it again.
"See?"
The red pattern dimmed, as if vanishing.
"When I withdraw the mana, it fades like this—"
This time, she channeled mana back in.
Zing.
The pattern resurfaced.
"And when I infuse mana, it reappears."
Ian stared blankly.
"Wow..."
"But here's the thing."
Arcia grinned.
"It has another function."
"Huh?"
The instant Ian parroted back dumbly—
"Ack!"
"If I pump in more mana than the limit—"
His shoulder scorched anew. Intense light bled from the once-transparent pattern.
And Arcia's gaze drifted downward.
"Check this out."
She pointed with a finger. At its tip was Ian's most treasured possession—
his precious cock, stiff and rigid, proudly displaying its vigor...
Ian panicked.
"W-Wait a sec—"
But Arcia had already seized it. She laughed, utterly delighted.
"And we're starting again."
As if it were the most natural thing, she gripped Ian's cock and
"A... w-wait..."
shoved it back inside herself.
"Ugh!"
**************
Faint sunlight filtered through the slightly parted curtains.
"Ugh..."
Ian stirred slowly, the light coaxing his eyes open.
Arcia's room. He came to atop her bed.
Arcia was nowhere in sight.
"Ugh..."
A dull ache throbbed through his body as he shifted slightly.
Especially—
his most precious spot. It hurt the worst there.
Rustle.
As he sat up, the blanket slipped from him.
And—
"What the hell..."
Red marks mottled Ian's body everywhere.
As if someone had sucked hard. Kiss marks.
"Ha..."
Thud.
In the end, Ian flopped back onto the bed.
He couldn't steady himself.
Then, click.
The door creaked open.
Arcia peeked her head in.
"Oh my... you're awake?"
She said it like she'd just noticed. But it felt like she'd timed her entrance perfectly for his awakening.
"How... many times did we...?"
Ian forced himself upright and asked.
Arcia rolled her eyes thoughtfully.
"Uh... um..."
Then, cautiously, she held up four fingers.
"Four times?"
Ian echoed in shock.
"Ummm..."
Arcia made a sheepish face and raised her other hand. Five fingers.
"Five times?!"
But that wasn't it either.
"Uuuun..."
Arcia shook her head side to side in denial.
Even now, Ian found her adorable.
"No way..."
"Ha... together..."
Four fingers on her right... five on her left...
"Nine times?!"
Ian's voice jumped an octave.
Arcia nodded faintly.
Ian's memories only went to the fourth. At that climax—
his vision whited out, consciousness snapping away.
Nothing after.
But... five more while he was out cold?
"...No wonder."
No wonder it hurt so damn much.
"Hehehe..."
Arcia laughed awkwardly, stealing glances at his face.
"But Ian liked it too!"
Sudden protest...
Then, as if struck by a thought, she cocked her head.
"...Wait."
Arcia's eyes widened a fraction.
"No, but think about it—"
Her voice rose, indignant.
"I totally gave you a chance to run!"
And so—
her epic ramble began.
"Ian started it! You went like this first! Ung! Like this, this way! You... you did!"
Her words tumbled faster.
"A-And I got permission! You said it was fine!"
She grew more heated.
"And... and... the times when you passed out, yeah, sorry about that! But... ung? Even unconscious, you reacted 'cause you loved it!!"
Words poured out breathless.
"Plus, I planned to stop at... se-seven... eight! But you were passed out so lewdly! I... couldn't help it! Th-this is me restraining myself!...And! I didn't force you! You kept reacting! Right?! It was... twitching! So I figured... it just naturally kept going! Yeah! That's it! And originally, really only four times! For real! I'm not that scary, okay?! But then you just... so... so cutely collapsed all lewd! How do you hold back from that?! Normally, anyone would go one more round! And honestly! I did pause once midway! Swear! But you suddenly... ung... reacted! So we picked up again... So it's not my fault... it's the situation...! Anyway! Don't make me sound like the bad guy!"
"Yeah?!"
Her ramble dragged on.
But—
Ian, body and soul aching too fiercely, couldn't follow it all.
He listened with a vacant stare.
...Half of it lost on him.
In short—
Arcia's verdict: "All Ian's fault."
"..."
A bit later, somewhat settled, they shared a simple breakfast of food Arcia had fetched from outside.
And now.
They sat awkwardly across the table.
"Um..."
"Y..."
Both spoke at once.
And stopped.
A beat of silence.
"...You first."
"No. You go."
Awkward silence settled once more.