Breaking Lilith's Seal
She could not endure another assault from Kaisent.
Yet if she did nothing, this would go all the way to the end.
"W-Wait a second!"
Trusting in Kaisent's usually gentle nature and laying the truth bare was the last card she had left to play.
"I'm begging you! I can't take any more pleasure!"
"I had a pretty good idea about that."
"What?"
"For someone supposedly waiting for her master from the original world, your terror of pleasure was way too strong."
Kaisent stretched out a hand toward Arty, signaling her to pause for a moment.
"But I never understood why. Go ahead and explain."
"It's going to be long."
"That's fine."
Lilith had never imagined she would be cornered this thoroughly by a child like him. She sighed inwardly and opened her mouth.
"I'm a half-blood of the Demon King of Lust and a dark elf."
Once she began, she explained exactly why she could not receive any more pleasure than this.
Even though she carried the blood of Asmodeus—one of the highest-ranking gods worshipped by the demonkin—no trace of that heritage showed on her body.
"Normally my own power and the barrier my mother cast herself keep the demonization suppressed."
"Is there a reason you have to suppress it?"
"That is…"
This was the most important part, the piece tied directly to her fate. She hesitated a beat before continuing.
"The moment I demonize, something else that was sealed away activates at the same time."
The queen of the dark elf kingdom had married the Demon King of Lust for political reasons and given birth to Lilith. She quickly realized how strongly her daughter had inherited the Demon King's blood.
Between royal dignity and the sheer horror of imagining her daughter spreading her legs for just anyone, the queen cast a barrier over her child to prevent demonization.
There was only one way to break that barrier.
Repeated sexual acts with a single partner until the pleasure received exceeded a certain threshold.
Because the Demon King of Lust was intersex, Lilith—who possessed a woman's body—ended up growing a cock as well.
Even as queen, there had been nothing she could do about that particular "defect."
So, for the sake of whoever would accept her daughter complete with that physical flaw, the queen prepared a blessing: once the barrier was broken, the man (or woman) who broke it and her daughter would be bound together for eternity.
When Lilith came of age she learned that her body was different from others, and she learned that by ordinary standards that body was considered repulsive.
She learned about her mother's barrier, about the reasons for her birth and her physical defect.
"And then I died fighting the forces of light."
With her mother's help she had been able to keep a female identity, yet because of that same defect she never formed a deep relationship with any man before she died.
Even in death she had been loved by no one outside her family. That loneliness turned her into a Lost Heroic, her soul bound forever to her bow, Castitas.
As a Lost Heroic she lived on for centuries more, still never finding a man who would love her despite the defect.
She had grown so weary she was seriously considering giving up when she met Aydan—a half-blood of demon and human—and finally found a man who accepted every part of her.
"In my original world I'm waiting for my master, Aydan, to break the barrier for me. Please. If I die you can just summon me again, so use me like a dog, make me a meat shield out in the open—I don't care. So…!"
"In other words, if I break the barrier, Lilith and I receive a blessing that binds us together for eternity. Is that right?"
"Yes."
She had hoped that saying it out loud would at least make him think twice.
"Then it doesn't matter. I'll take responsibility."
"I don't want that! I said I don't want you!"
Kaisent's pure, innocent smile made her snap with sudden rage.
"Why? I like your body the same way that Aydan person does."
"Th-Th-That's not it! Not just the body—your heart has to…!"
"Then there's no problem. You're enjoying this more than you admit."
"What!? Wh-When did I ever—!"
He stepped toward Lilith and gave Arty a chin-jerk. In an instant Arty seized both of her shoulders, locking her in place so she could not flee.
"Let's try a little thought experiment. Suppose you reunite with this Aydan person and somehow everything works out perfectly."
Kaisent drove the truth like a fist straight into the woman who kept denying him.
"Do you really think Aydan will love you the way I do?"
"What… are you talking about?"
"Even if Aydan accepts your cock, will he be able to pleasure it the way I do?"
"……"
Lilith's mouth snapped shut. Kaisent had struck the exact center of the target.
The Aydan she knew was a sincere man who had been persecuted by both sides for being half-demon, half-human. That sincerity let him accept others without discrimination; he had been able to accept her genitals (after the initial shock).
But accepting something and using it for sex were two entirely different matters.
A man whose only qualities were sincerity and ordinary sexual knowledge would never toy with her cock the way Kaisent did.
"Once you've tasted the pleasure I give you, can you still go back to Aydan? Can you look him in the eye and ask him to do the exact same things I did to you?"
"Shut up!"
"You can't. That's why that answer comes out."
Her only reply had been a shout rather than a real rebuttal. Satisfied he had hit the mark, Kaisent walked up to the woman whose shoulders Arty still pinned.
Then he lightly scraped the underside of her glans with the sole of his shoe.
"Hhhnnnngh~~~~~♥"
One light scrape of the sole was enough. Lilith's cock throbbed violently, her urethra twitching as if it would ejaculate on the spot.
"Picture it. Begging Aydan to scrape your cock with his shoe until you cum the way I just did. What kind of face do you think he'll make?"
"Khh…!"
Sincere Aydan would look at her with pure disgust for the first time in his life.
"And I already told you. I manage your ejaculations from now on. You agreed."
"Th-That was when I wasn't in my right mind!"
A vow made while pleasure had numbed her reason and melted her brain into pure sensation.
"Yeah, I figured you'd think that."
Kaisent himself had never expected her to keep that vow, so he had never forced the issue.
"Anyway, I just heard something wonderful. If I break your barrier with my own power, you and I receive a blessing that binds us for eternity, right?"
Instead he smiled, because he had just learned a way to make that vow stick whether she wanted it or not.
"You… you wouldn't—!"
"Arty, focus only on restraining Lilith this time."
"Yes, Master."
Arty pressed both of Lilith's arms down hard, preventing her from twisting into any extreme position.
"At last you will belong to Master as well. Your mother was truly wise to prepare such a blessing."
"No! I don't want it! I only want Aydan… Hhooooooh~~~~♥"
She thrashed her legs wildly. Realizing ordinary restraint was no longer enough, Kaisent activated the ball chastity device.
The device hammered her testicles until her strength fled. Kaisent slipped between her spread thighs and stopped the device.
"Lilith, do you see this?"
"Hah♥ Hah-hah♥ Th-That is…?"
He held up something that looked like a toothbrush—one of the items he had received along with Arty.
It only resembled a toothbrush. Where the bristles should have been, several starfish-shaped attachments sat like the heads of a massager.
"This is my secret weapon for turning your cock into an even worse premature-ejaculation machine than it already is. Your cock has been trained to the absolute limit, but this spot still hasn't been trained."
He spread her pussy wide with his fingers, pushed the device inside, and pressed it firmly against the spot he remembered—the ceiling of her passage.
"Hagiiik!?"
The sensation shot straight into her prostate. Her cock jerked hard.
"W-W-W-Wait! Wait! I'll die! I'll actually die! That's too dangerous!"
"You'll be fine. You won't die. And if you really do, I'll just summon you again."
Lilith, who had already suffered prostate training from the clones, shook her head desperately.
Fingers alone had turned her ten-second cock into a five-second cock. If he used a tool like that…
It was no joke—she might actually die and need to be re-summoned.
Bzzzzzzzzzt!!!
But Kaisent, operating on the simple logic that death only meant another summon, switched the toothbrush-shaped vibrator to maximum power from the very first second.
"Kyaaaaaah!!! Ggiiiiiik! Hhiik! Hiiiiik!"
The vibrator roared, the starfish heads battering her prostate without mercy.
Pshuuuut! Pshuut! Pshushushushuut!
Naturally a massive volume of semen erupted from her cock, shooting high enough to spatter against the ceiling.
Pyupyupyupyupyut! Pyuuuuut!
"Ogoooh♥ Ogogogoooh♥ Aaaakahaaah♥"
Even a premature cock normally needed at least a short interval between orgasms. This time there was none. Semen sprayed like a broken faucet.
"I-I'm dyiiing♥ Ugigiiik♥ Please stop alreadyyy♥"
Lilith—who until meeting Kaisent had never known pleasure like this in her entire life—writhed with a face that could not decide whether it was laughing or crying, tears and drool streaming freely.
She thrashed so hard it looked as if she might go mad on the spot, yet Arty held her body down with iron strength, reducing the struggle to a minimum.
Kaisent, already nestled between her thighs and casually controlling her kicking legs, seized her glans and shoved his index finger deep into her urethra.
"Wow. The semen is pushing my finger out with incredible force. Even after shooting this much, it still has that much power."
"Gkkiihiiiiiiit~~~~~~♥♥ I-I wanna cum♥ I wanna cum so baaad♥"
Kaisent forcibly blocked the lava-like surge of semen trying to erupt from inside her urethra and marveled at the pressure shoving his finger back.
Lilith, however, was in no condition for calm observation.
Her balls kept producing semen and trying to expel it, yet his finger sealed the urethra shut.
The trapped semen bubbled and boiled inside her cock. The pain of reverse flow and the agony of needing to ejaculate hit her at the same time.
"How does it feel? You want to cum just like this, don't you?"
"Khhik♥ Kak♥ Grrrk♥ Kheuuk♥"
Lilith was already far past sanity.
Sounds that were neither moans nor screams tore from her throat. In her eyes not a single spark of reason remained, no matter how hard one looked.
Good. I'll gather it all here and then detonate it in one shot.
He had already used continuous pleasure several times.
The fact that she had still held off demonization meant he needed a different method of attack.
That was why he was denying her orgasm now—so he could make her explode all at once.
And that single blast would not be pure ejaculatory sensation alone.
"Feels good, doesn't it? Being under ejaculation control. Your face looks like you're dying of happiness."
"Gggggggk♥ Kiihiiiiiiik♥♥"
Already mindless, Lilith simply wanted to cum no matter what Kaisent said. She bucked her hips like a monkey.
Because Arty prevented her from grabbing Kaisent's arm with her hands, she tried to shake him off with her waist alone.
It was pure instinct, and it showed.
"Forget Aydan. From now on I'll be your lover."
"A-Aydan! Aydaaaaaan!!"
The moment she heard the name, Lilith spat it out in a frantic stream.
There was no meaning behind it—only the automatic reaction of a broken mind to a familiar, longed-for keyword.
"If you don't want to be my lover, sex slave is fine too. You'll spend the rest of your life as my slave under permanent ejaculation control."
"Haaa~ Just imagining it sounds like pure bliss. I don't have a cock so I can't know for certain, but having even your orgasms managed by Master…♡"
Arty, still quietly restraining Lilith, wore a dreamy smile at the mere thought.
"If you say you'll become my sex slave, I'll let you cum."
"Aydaaaaaan! Aydan! Aydaaaaaan!"
"Say it! Say you'll be my sex slave! I'll keep you as my cute little slave forever! That Aydan guy can never satisfy the lewdness inside you!"
"Hgggggk♥ Ogogogogogok♥"
The volume of semen trapped in her urethra kept growing. The urethra was forced wider and wider until her cock itself grew thicker than before.
The bubbling pressure of semen that could not escape turned Lilith's brain into pure mush. At last the desire for pleasure overtook her feelings for Aydan.
"I will! I'll do it! So pull it ouuuuut!"
"Ahahahaha! Good girl! As a reward I'll let you cum!"
Squelch!
"Nnghiiit♥"
The instant Kaisent yanked his finger free of her urethra and crushed her balls as if he meant to pulp them, the thin stream of semen that had looked like urine moments earlier became a finger-thick jet.
The force was so violent the semen not only stuck to the ceiling—it hammered against it hard enough to threaten to punch through.
Finally able to ejaculate, and having surrendered under Kaisent's threats, her feelings for Aydan faded just a little. In the same measure her resistance to pleasure diluted.
Fwoosh!
"Ah?"
Arty felt wings suddenly unfurl from Lilith's back and realized the woman's condition was changing in an instant.
Her skin shifted from the chocolate brown unique to dark elves into a soft pink. Her silver-blond hair and eyes turned pure black. Black tail, crimson wings, pink skin, and long horns—she was reborn as a demon.