The Ideal Grand Duchess
Once again, an atrocious torrent of thick white seed slammed into Sia’s womb. Yet none of that massive load could force its way inside. It simply pried apart the tight seal between her cunt and the cock, spurting and squirting out in messy jets. Her womb was already packed to its absolute limit.
“Ah……♥ Fuck……♥”
Lua felt something snap inside her mind. An ejaculation this violent consumed enormous stamina and willpower, inevitably bringing total exhaustion. She had been in poor condition to begin with and should have held back. No matter how unsatisfying, she should have stopped after one round, but Sia’s pussy felt too good and she had overdone it.
“Ugh……♥ I can’t……♥”
Lua could not lift her heavy eyelids no matter how hard she tried. In the midst of the endless climax, the entire world bleached white around her. She collapsed onto Sia’s smooth back.
“Lu-Lua?! Are you all right—”
Spurt! Splurt! Spluuurt!
“Euhok?!♡”
But the ejaculation had not stopped. Lua remained buried to the hilt, hips twitching as she kept pumping out thick ropes of cum. Crushed beneath her little sister’s body, Sia had no choice but to endure the relentless assault on her womb until the very end.
“Heuk……♡ Haah……♡ Mi-Mina? There’s… still more…?”
“Ah, yes. There is still more. I’m sorry……”
Sia barely held on as her eyes threatened to roll back from the unending orgasm and continued speaking.
“C-can you help me……? I don’t have the strength to move Lua by myself……”
“Of course. I’ll—”
“W-wait a second? The ejaculation hasn’t finished yet—”
Spurt!
“Ohoook?!♡”
Even though she had passed out, the Grand Duke’s final thrust was still merciless. Sia couldn’t endure the last volley. Her eyes rolled back and she fainted as well. Her small tongue lolled out across the desk, drool spilling freely.
“……B-brother? Sister?”
“Heuk……♡”
“Ugh……♥”
Mina called out to them carefully, but the siblings only lay there with their bodies overlapping, hips twitching in tiny aftershocks. Seeing it was safe, Mina slipped her fingers back inside her pants and pressed them to her own sex.
“Hngh……! Hauk……!”
Mina was large-framed and her genitals were naturally bigger than Sia’s, yet they were still those of an ordinary woman. The moment she rubbed her cute little clit—so dainty compared to her size—moans spilled out uncontrollably. Two gorgeous women were grinding against each other with enough heat to evaporate the northern snowfields; there was no way she could simply stand still.
She had been secretly rubbing her aching pussy for some time now. The startled look she gave Sia earlier had been pure fear of being caught.
“Hngh…… Uhhk……”
She couldn’t hold back and had given in, but the crushing guilt was real. These two shared her blood. One was the Grand Duke she was sworn to serve, and the other stood higher in the line of succession than she did.
“B-brother did it too, didn’t he?! He used me as a masturbation aid! And sister raped me too……!”
Mina spoke the words aloud to escape the guilt. Saying it out loud worked far better than merely thinking it. Once the guilt lifted, what remained was a thrilling sense of immorality, along with anger and jealousy.
“You two were enjoying yourselves however you pleased from the start…… You have no right to lecture me abou—ugh?!”
Her mind went pure white. Her body felt like it was floating. Mina came hard, soaking her underwear with squirt after squirt.
“Haah…… Haah……”
It was nowhere near enough to sate the wolf’s hunger. Like Sia, Mina had already experienced being brutally fucked by Lua’s absurdly huge cock, her womb and organs crushed and rearranged. There was no way a few fingers could soothe that deep itch. Besides, Mina had been handled far more roughly than Sia. When Lua took Sia, she had been careful not to break her, gently tempering the womb. With Mina, every thrust had been delivered with full brutal force.
“Huu…… Huu……”
Finally surrendering to the afterglow and calming herself, Mina gazed down at her own lower belly. Hidden beneath her clothes was the womb tattoo engraved by the Subjugation Curse. Marking a noble with the brand reserved for sex slaves was humiliating; she had once believed it a fitting punishment. But that wasn’t quite right. It was simply stating a fact.
Anyone who experienced the Grand Duke’s massive cock became a slave to it, unable to live without that monstrous thing inside them.
“I’m sorry…… I’m truly sorry……”
Once her lust cooled and reason returned, the guilt came rushing back like a starving wolf. A traitor who had joined a rebellion and received her just punishment had no right to wallow in pleasure like this.
“What are you sorry for……?”
“Hut……!”
With an expression like her head was pounding, Lua lifted her face from where it had been buried in Sia’s lush hair. Mina hurriedly hid her hand, glistening with her own juices, but Lua had already seen everything. The corners of her eyes curved in a wicked smile.
“Even steadfast Mina couldn’t endure it. We must have looked incredibly lewd, hm?”
“Eut……! Th-that’s……!”
Mina’s face flushed crimson. Her mouth opened and closed, but no excuse would come out. Lua staggered upright, then slowly withdrew the cock still fused with her older brother.
Pop!
“Hngh……♥”
“Uhek♡”
Lua let out a soft moan as the glans slipped free. Even unconscious, Sia’s hips jerked. Mina swallowed hard, envious. Even the act of pulling out that oversized cock was pure pleasure. She knew it well—she had climaxed from nothing more than the rough scrape of that withdrawing glans.
“If you’re sorry, would you clean it for me?”
“Ah, I’ll fetch some cloths right—”
“No. I want you to lick the cum off my cock. With your mouth.”
“Ah……!”
Lua sat in the chair with a tired expression, leaning back and closing her eyes. Mina knelt respectfully and extended her tongue, lovingly licking the greatest cock in the entire Grand Duchy. Lua cracked open one eye and gazed at her older brother, who was still slumped over the desk, hips twitching.
“Brother. You still need to finish the report, don’t you?”
“U-ugh……♡”
“Hehe♥ Looks like that won’t work.”
Lua picked up the paper on the desk, now thoroughly soaked with semen and pussy juice. It was the summary Sia had prepared. The ink had run everywhere, turning the page into as much of a mess as the author’s freshly-fucked mind, but the content was still readable.
“Mina. What do you think?”
“Haeup…… Churup…… Yes……?”
“I’m asking about my brother’s report.”
Lua gently gripped the wolf’s slender chin, guiding her gaze upward as a sign that she could pause her service for a moment.
“Mm…… I believe it was a clean, concise analysis with no wasted words. It doesn’t seem worthy of the previous Grand Duke’s harsh criticism.”
“I wonder. Even if Father rose from the grave and read this report, I doubt he would change his opinion.”
“Pardon?”
“Because of what’s written here at the bottom.”
— Dispatching reinforcements to a requesting lord only for Vile Wyverns to appear and annihilate them.
— A marriage proposal seeker in these troubled times having planted an insider among the Grand Duke’s closest aides.
— Other extreme, paranoid-level contingencies that normal analysts would dismiss.
Lua turned the report over so Mina could read it. The page was heavily splattered with white fluid, forcing Mina to squint and stare for a long time.
“Um…… It’s a little…… how should I say……”
“Extreme, right?”
“Yes……”
Based on the analysis of the empire’s political climate, the document predicted the consequences of every possible decision the Grand Duke might make. Sia had considered even the absolute worst outcomes—scenarios so unlikely that ordinary people would never entertain them. Things like sending soldiers to aid a lord only for Vile Wyverns to appear and slaughter them all. Or a suitor using this chaotic time to plant a traitor among Lua’s inner circle.
“The sort of content one might call paranoid. But Mina, do you know what’s truly interesting?”
“……I do not.”
“That every single one of these things has actually happened in the Grand Duchy. Vile Wyverns appearing without warning, resulting casualties, and the betrayal of people we thought were as close as family.”
“……I’m sorry.”
The very traitor in question lowered her head with a gloomy expression.
“It’s fine as long as you understand.”
Lua smiled lightly and stroked Mina’s cheek. This wolf’s betrayal had been within the expected range, though it had still pained her when it became reality. Now, however, Mina was nothing more than a defeated bitch who had lost her virginity and was eagerly licking cock. She was no longer worth dwelling on.
“Father thought Brother was a coward. That if he became Grand Duke, nothing would ever get done. But the current situation proves that someone like Brother is necessary.”
“……You are correct.”
Lua gripped the head of her loyal hound and guided her back to the cock. Mina kissed the massive shaft to signal she was resuming service, then licked every inch clean of semen. The load that should have tasted bitter somehow felt sweetly ticklish on her tongue. Meanwhile her fingers secretly rubbed her own pussy.
If only this huge monstrosity would pierce my belly again. If only this horrible fluid would fill me up once more.
“Haeup…… Hup……”
“Ah…… I forgot to mention it, but the magic interrogator told me something. My semen apparently contains components similar to an aphrodisiac.”
“Churp……?”
“So you don’t need to feel too guilty about not being able to endure without touching yourself, you perverted mountain-sized slut.”
“Eut……!”
Mina’s proud face collapsed in shame, yet her tongue never stopped worshipping the cock. Lua stroked the back of her head with gentle affection while gazing at her older brother, who was still twitching on the desk.
Lua was strong. That was why she always sought the best path first. Sia was weak. That was why she always tried to avoid the worst path first. The two of them perfectly compensated for each other’s flaws. Moreover, Sia was the only person to whom Lua could open her heart without the slightest suspicion. Sia had proven time and again that she would do anything for Lua. Considering every factor, there was simply no one more suited to the position than Sia.
“As expected, I should give Brother a role that truly fits him.”
“Slurp……? You mean something like an advisor……?”
“No. Grand Duchess.”
“Puhup! Cough! Cough!”
The Grand Duke had decided this long ago, yet she reaffirmed it now with fresh resolve. Besides, the sexual compatibility between me and my sister is absolutely perfect♥ While Lua remained perfectly composed, Mina was so utterly dumbfounded that she ended up spraying semen out of her nose in a humiliating display.