Chapter 13
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Chapter 13: Mouth-Onahole (Deep Throat)
Author’s Note: Apologies for the delay! Whether Sunday still counts as “this week” is debatable, but I managed to update somehow.
If anyone was waiting, I’m truly sorry…
This is all my part-time job’s fault! I’m not to blame!
…Okay, fine, I’m sorry!
I originally planned to write the “main event,” but the deep throat scene ended up way longer than expected, so I had to split it. The actual sex will be next time.
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“Gghhk—!!❤️❤️”
“———!!!???❤️”
The cock thrust forward with brutal force, piercing past her throat, conquering her esophagus, and driving straight into the deepest depths—the entrance to her stomach.
“NghhoOOOOHHH—!!!??❤️”
Her eyes rolled back, her jaw stretched to its limit, drool spilling from the corners of her mouth—yet Saki only tried to take it deeper, as if sanity had long since abandoned her.
In a situation that could easily kill her, she felt nothing but twisted, masochistic ecstasy.
Her body convulsed from the danger signals her brain screamed at her, but the soaked state of her skirt left no doubt—she was enjoying this.
“Hah…❤️ Your throat feels amazing…❤️❤️”
Just like Saki, Rin wore a dazed smile, lost in the tight heat and her own mounting pleasure.
Looking back, Rin might’ve held back earlier. Out of sisterly affection, she’d measured her thrusts, careful not to go too far.
But now?
Now, Saki wasn’t her little sister—just a fucktoy to satisfy her lust.
Rin’s cock was buried so deep that only the base remained visible, Saki’s nose pressed against neatly trimmed pubic hair as her face contorted obscenely.
A predator’s grin curled Rin’s lips.
She didn’t move.
“Nghh—!!!”
Of course, Saki’s breathing grew ragged. Without the brief reprieve between strokes, even the bare minimum of air was denied. A lethal act by any measure.
But why would anyone treat a thing with care?
Unless they feared wearing it out.
And Rin had no such concerns.
To her, Saki was just another replaceable toy.
While Rin reveled in the tight, wet heat, Saki’s face paled by the second. Rin watched, amused, devoid of any human empathy.
The kind, principled sister she once knew was a lie.
“Ngh…! Gghh—!!”
Yet, even as pain outweighed pleasure, Saki didn’t resist.
Her hands hung limp, her throat utterly exposed, drool staining the ribbon at her chest.
A display of submission.
Rin’s smile deepened.
“Kufufu.❤️”
A good slave deserved a reward.
Just as Saki’s skin turned from red to ghostly white, Rin finally pulled back—just enough for the tip to rest at the base of her tongue.
“Ghk—! Gah—!!!❤️”
Or rather, yanked back.
The momentary gasp for air was cut short as Rin slammed forward again, burying herself to the hilt in a single thrust.
“Gghk—!!❤️”
Saki fought to keep her stomach’s contents down, her throat convulsing violently.
Gurgle.❤️ Splurt.❤️
The sound of clogged drainage filled the infirmary. Frothy, white drool spilled from Saki’s stretched lips, her eyes rolled back—she looked like she was foaming at the mouth.
And yet, she loved it.
Her arousal was undeniable.
With every thrust, her hips jerked, her juices splattering the floor as she whimpered in anticipation.
Just feeling that world-class cock—thick, long, and scalding hot—filled her with gratitude.
The pheromone-laced precum seared her brain, her vision flashing shocking pink stars.
It was like her mouth had been rewired.
What was once for eating now existed solely for pleasure—her throat, her esophagus, all remade by Rin’s cock.
No, even her brain had been rewritten.
Each thrust sent sparks through her nerves, her senses overwritten.
Her tongue, once fighting the intrusion, now worshiped it.
Her throat clenched rhythmically, milking the shaft like a true mouth-pussy.
Squelch.❤️ Glurk.❤️ Splurt.❤️
The obscene sounds of her service pushed Rin to the edge.
“Nghoooh—!!❤️”
“Nghh—! Hey! I’m cumming! Swallow every drop, got it?! Spill a drop, and I’ll choke you!❤️❤️”
(Cum!❤️ Cum so much it knocks me out!❤️ Flood my stomach with your thick load—please!!❤️❤️)
Pure devotion.
The sister named Saki was dead.
In her place knelt a slut.
“Hgh—! I’m—CUMMING…!!”
Splurt!❤️ Gush!❤️ Splatter!❤️
Rin shoved deeper, firing directly into Saki’s stomach.
Her silver hair yanked like reins, her face forced flush against Rin’s pelvis.
“NghhoOOOO—!!!???❤️❤️❤️”
Saki’s voice cut off.
Her tiny stomach overflowed instantly, but with Rin’s cock plugging the entrance, there was no escape.
Her belly swelled.
Taut abs bulged obscenely, rounding like a beer gut—grotesquely mismatched with her delicate frame.
“———!!!❤️”
Squelch.❤️ Splurt.❤️
Like chugging liters of water in one go—except this was forced, far beyond human limits.
And yet, Saki came.
Precum dripped from her nose, her organs screamed under the pressure—but she soared in ecstasy.
A true masochist.
Even Kaede hadn’t reached these depths.
Saki had spent so long watching Rin’s brutal sex, simulating it in her mind.
Denied.
No matter how much she touched herself, it was never enough.
Her body had been simmering—marinating—in desperation.
And now, it was perfect.
“Nghh—! Hah—!!❤️❤️❤️”
As Rin finally pulled out, Saki gasped, her stomach sloshing with cum.
Every breath carried the scent, every twitch reminding her of the violation.
“Hah…❤️ Hah…❤️”
“Kufufu.❤️ You swallowed it all. Not a single drop wasted. Good girl.❤️”
The praise—condescending, pet-like—still made Saki’s ruined face light up.
“Th-Thank yooou…❤️”
“Mhm. Now?”
“…Ah, y-yes!❤️ Please, let me clean your cock—it’s filthy from my disgusting mouth…❤️”
“Good answer.❤️ Here.❤️”
“Nghh—!❤️ Lick…❤️”
She obeyed, lapping at the cum-and-drool-coated shaft like a loyal dog.
Once, Rin thought Saki was cat-like.
But no—she was a bitch.
“Though… your belly is quite the sight.❤️”
“Nghh—!!❤️❤️”
A playful kick to her swollen stomach made Saki spasm, the squelch between her legs betraying her pleasure.
Rin laughed, elegant and utterly out of place.
—
“—Now, Saki. Are we done here?”
“Eh…?”
Panting, Saki blinked up at her, confused.
“Are you satisfied now?”
“Th-That’s…”
The truth?
She was starving.
Her hips twitched, her eyes heart-shaped, her womb burning.
But she hesitated.
A slave shouldn’t ask.
A thing had no right to beg for pleasure.
And the thought of Rin disapproving froze her blood.
Rin sighed.
“Honestly, such a needy bitch… Can’t even seduce your master properly?”
Too loyal for her own good.
(Well, fine then.)
“—I’m not satisfied, Saki. So what should you do?”
“YES!!❤️❤️”
Eyes shining like a pardoned sinner, Saki moved instantly.
She tore off her uniform, discarded her useless underwear, and spread herself on the floor.
Legs up, virgin pussy on full display—drenched, begging.
“Onee-sama!❤️ Please, ruin my childish pussy—make it yours!❤️ Use me as your cumdump!❤️”
“Kufu.❤️ Next time, be honest sooner. Whether it’s disrespectful is my call—and if it is, I’ll punish you.❤️”
“Y-Yes!❤️ Thank you!!❤️”
Trembling with anticipation, Saki’s hips jerked impatiently.
Like a dog wagging its tail.
Rin loomed over her, lining up her cock.
“I’m going in.”
“YES!❤️❤️❤️”
No hesitation.
The thick shaft tore through Saki’s hymen in one thrust, burying itself to the hilt.
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Author’s Note: I wish I could be strong enough to say “I quit”…
About the piercings/tattoos—I might do a brutal “if” route later where Rin’s sadism goes beyond insane. But since I’m not sure when this’ll end (and I still have tons to write), don’t hold your breath.
Next up: Saki’s proper sex scene. After that, maybe a slice-of-life interlude from other perspectives (Including characters who haven’t appeared yet).
If you spot typos or inconsistencies (Shaky voice), let me know!
