Editing Shinmai Maou no Keiyakusha:Volume 12 Chapter 2 (section)

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—If it was just to tie the master-servant contract, there was no need to cross that final line.
Nevertheless, Nanao wanted to be held by Basara.
She was already at her limit.
And the reason for that wasn’t the intense arousal that came from the master-servant contract’s curse.
—It was the end of the previous school year, in the infirmary.
In that infirmary, Nanao had her gender fixed to that of a girl through the help of Basara and Hasegawa.
Basara and Hasegawa took hold of her whole body—caressing her breasts and butt, teaching Nanao all the pleasures of a woman. And then Hasegawa showed herself giving Basara a blowjob, then taught Nanao to do the same—the kind that only she as a half vampire could perform for Basara, felatio while using those sharp fangs.
WIth that, in return Basara had assaulted Nanao’s spot with his fingers, giving her countless orgasms—in the end, he had inserted his penis into her panties, rubbing it directly against her entrance, and at the end of it he had bitten her in her weak spot, her nape, to give her the highest point of climax.
She entered spring break as such, and then for a short period of time, she was unable to see Basara, On the day of the opening ceremony for the new term, She reunited with him at the supermarket and they began their secret sexual relationship.
He became so manly during spring break, almost as if he was a different person—his heart held a cold overwhelming presence, and she wanted to give him a sort of healing, even just for a little bit.
Of course, Mio and the other girls were able to fulfill such a role, but to Basara their actions had become the expected. That’s why Nanao thought she could be a sort of different force for him, a different sort of mood.
If she couldn’t do that much for him, then they were merely friends.
Nanao, who decided to live as a woman through Basara, did not want that.
And then Basara as well—he took proper responsibility for fixing Nanao’s gender to that of a woman.
Having kept it a secret from the other girls, Hasegawa who was aware of the situation as well said nothing.
—However there were limited opportunities for the two of them to be alone together.
Therefore during the times before or after gym, or times they went out together for student council jobs, that was their time. And then sometimes when Basara went to the bathroom they would go together, so in the storage room of the gym or in the stalls of any of the bathrooms, she would service Basara. After school today as well, Nanao was aware of him having sex with Yuki in an empty classroom.
However—there’s still a definite gap between them.
Nanao and Basara never cross that final line.
Even though Nanao herself didn’t mind—in fact, it’s quite the opposite, she wanted Basara to take her.
—Therefore, she had even swallowed her shame and expressed such interests to Basara.
But—Basara never crossed that final line, instead he told her about the big changes in his relationship with Mio and the other girls that happened over spring break.
It’s was about how they had completely turned into sex slaves through the master-servant vow. He told her about how it’s a completely miraculous relationship, yet one that was necessary to overcome the great battle that happened during spring break.
Therefore, for Nanao’s sake, he didn’t want to make light of sex.
However—now being aware of their situation and possibly being a burden to them, Nanao then wanted the master-servant contract with Basara.
Having to hide how she’s a half vampire presents a burden for Basara, and she truly wants to be of strength to Basara—to truly be a part of his family and work with them.
That feeling of hers was true.
In order to ensure that Nanao whose strength isn’t as good as the others did not become a burden to Basara and the others, they had agreed that this contract should then progress into a master-servant vow, and therefore it had to be tied using the aphrodisiac effects of Maria’s succubus powers.
Even so, she would be lying if she said she didn’t hold the desire to have sex with Basara.
—Tachibana Nanao truly wanted to be of use to Toujou Basara.
But her desire of wanting to have sex with him are of the same strength as that.
And then now—both of those wishes were about to come true.
“Nanao—“
In the middle of this bathroom where they had completed their master-servant contract, Nanao was on the floor and Basara was on top of her.
Being in the missionary position, Nanao was aware of what’s about to happen
“Mm… Toujou-kun, wait….”
As she said that, the aphrodisiac curse of the master-servant contract showed its mark on her neck.
“Before this, in the infirmary, I became a complete woman through you right…. If possible, I want something like that time”
“…You mean together with Hasegawa-sensei?”
As Basara said that,
“I don’t mind…. Nanao, you do know what you’re saying with that right?”
Hasegawa, who stood up from the bathing area, said that with a smile audible in her voice.
“No… T, that’s…”
Nanao, with the curse’s effects going through her body, was losing her words.
As if scolding her, Yuki said,
“Nanao… With you tying your master-servant contract with Basara, you should be aiming for the master-servant vow. And in that case, then you can’t lie to yourself. You have to properly say the truth”
At that scolding from Yuki, Nanao voiced her desire from her own lips.
“…Toujou-kun, I… I want to be taken from behind”
“…You don’t want to be seen by me, are you embarrassed?”
“N-no…. Well, of course I’m embarrassed but that’s not it”
See, Nanao said as a prelude,
“If I’m seen I’m scared that…. Scared that without meaning to, I would use my magic eyes on you”
Nanao’s magic eyes have the ability to alter consciousness.
But Nanao doesn’t want Basara altered by that, she wants to be held by the real Basara.
In response to that, Maria said,
“I think Basara-san, who has tied the master-servant vow with all of us won’t be affected by the magic eyes, but…”
“Maria… Nanao, doesn’t even want the slightest possibility of that”
Mio said, understanding Nanao’s feelings.
“Besides—so that she can properly submit to oniichan, she might not be able to forgive herself for even possibly using it on Basara.”
“Fufu…. Nanao-senpai, that’s truly admirable”
How cute, Kurumi said with a smile,
“In that case then… Basara-sama, how about doing it with her on your lap then?”
Zest, who had been watching them suggested.
“There are many positions you can take from behind however…. As Nanao-san’s weak spot is her neck, this may seem like the most effective way to get her to submit”
“…That’s a good idea”
Basara nodded, agreeing with Zest.
“So then, let’s do it there—“
With that said, they guided Nanao to the waterproof sofa on the other side of the bathroom.
And then, Basara, sat down first,
“—Nanao”
Showcasing his large erect penis, he said as if instructing her.
“….Y-yeah”
Therefore Nanao, with her eyes blurred, gulped down, and as she stood she faced her butt to Basara and slowly spread her legs. With that, Basara used his hand to fix the position of his penis, and positioned it so that if Nanao lowered herself it then would meet with her,
“…Ah…. Aah…”
Even though he hasn’t put it in. Just from having the tip of Basara’s penis meeting her secret spot, Nanao’s crotch was feverish, and her hips trembled.
“What will you do Nanao…. Will you do it yourself? Or should I do it for you?”
Basara’s question came from behind her.
—The answer to that had already been decided.
She didn’t have to think about it. Therefore Nanao looked back behind her and spoke from the heart.
“Do what you want Toujou-kun…. That’s what I truly want”
Since she’s already his slave—He answered that wish of hers.
“….Got it”
Basara said….
And it was right after that.
Will he lower her down to him, or will he thrust up into her?
Basara picked a different answer from the two previous options—he stood up.
Nanao, who was waiting for Basara with her legs spread open, instantly realized a wet sound could be heard from her crotch area.
And then,
….Eh…?
Just as Nanao was lost in her thoughts—Basara’s penis which pushed in through her secret spot penetrated inside her vagina, reaching her hymen,
“—Here goes”
Realizing Basara’s whisper in her ear, Nanao’s words were all too late.
All she could do is what remains—she gulped down,
“——“
What was she planning to say? That’s something Nanao will never know for the rest of her life.
Before the answer could even form, Basara thrusted his hips up.
Basara’s maverick of a penis that had trapped Mio and the other girls in a cage of pleasure, turning them into his sex slaves, easily, without any resistance—smoothly, broke past Nanao’s hymen.
Perhaps it’s because she’s been in an aroused state all this time, but Nanao’s vagina, so unbelievably hot and wet, has a melting softness that makes it seem almost unbelievable that this is her first time.
“Ah… aaah….. aaaaaaaah”
Nanao’s secret spot contracted, taking Basara’s penis to unknown depths.
But Basara’s penis is of an overwhelming size, one that’s big enough to completely cover all of Nanao’s insides—so big that there’s no place inside of Nanao that isn’t rubbed against by Basara’s penis.
—Also, Nanao right now had the curse of the master-servant contract activated.
And with it being Maria’s magic, it’s the aphrodisiac effect that ties her master-servant contract with Basara.
Therefore,
“Yeah…. aaaaah, haaaaaaaaaaaaaaaaaaaaaaaaaaaa ♥”
Responding to the waves of intense pleasure, Nanao’s climax caused her sweet moans to echo throughout the large bathroom.
At the same time, she felt a sweet reverberation throughout her body, her vision going completely white, she felt like she was about to pass out.
But—Nanao couldn’t pass out just yet.
“Not yet… I want you to feel me more”
Basara who was lewdly thrusting inside Nanao, held her from behind—as he was inside of her he fell back to sit on the chair.
—Even while standing, Basara’s penis was able to reach through to her deepest point.
Sitting down it could reach an even deeper part of her, and it made Nanao feel his penis at her womb,
“—♥”
Having her womanly chambers shaker, she once again fell into an intense climax.
—Even prior to this, Basara had made her cum before.
But—with the high level of aphrodisiac effect from the curse, she was already filled with a sweet, sensual fever throughout her body, from earlier continuing on till now, and the pleasure she then derived from being penetrated by Basara was already at an otherworldly level.
It was enough to take everything from her—her reasoning, her sanity.
Therefore, what came next was natural—as Basara thrusted up from below her,
“No, haah ♥ nfuuu, fuaaah ♥ haaah, amazing…. Toujou-kun, amazing….. haaaaaaah”
Her voice, drunk with pleasure kept getting louder, she lewdly moved her hips as if in a dream.
Nanao who received climaxes inside of her, as Basara kept thrusting deep in her, had such an easy time cumming it was almost unbelievable. Her eyes drowned in sensuality, and her body was pleased in the idea of being Basara’s woman.
Initially, the sounds made by Basara’s penis thrusting into Nanao was a splashing watery sound, but with each of his thrusts she came by the loads, and soon, it turned into a smooth and lewd watery sound.
With that—Basara kept thrusting his hardness into her, his left hand went up past her waist, holding her in place, while he groped her breasts and his right hand began playing with her clitoris.
“Haaah ♥ Yaah…. Toujou-kun…. Fuaaaan ♥ aaaahn, yaaan…. aaah, ahaaaah ♥ haaah, Toujou-ku…. Haaah, Basaraaah… Basaraaaaaaaaaah ♥”
Nanao who kept experiencing a completely different realm of pleasure—had her hips tremble and buck up as she calls Basara’s name, having come and letting out her womanly shower again and again.
—Even so, Basara’s penis was still thrusting inside Nanao’s vagina.
Basara was holding onto her from both sides, and wasn’t letting go.
He kept moving his hips—
“…uh… aaaah…. uh”
Nanao could start to hear Basara’s grunting behind her.
From all of Nanao’s coming, her pussy contracted all the way to its base—in that state, it’s easier to arouse the penis that’s inside of her.
Basara’s penis grew bigger as Nanao continued to come—Nanao was able to completely feel how much bigger it was inside the lower half of her body.
And then,
Basara in a low voice said to Nanao,
“Nanao… I’m cumming”
“Aaah…. fuaaah, y, yes…. come inside me ♥”
Looking back at Basara behind her shoulder, she said,
“Please…. Inside of me right now, Basara, come….. haaaaaaaaaaaah ♥”
It was right after Nanao’s pleading—the time had finally come.
“….Nanao…. aaah!”
With that shout, Basara thrusted to her deepest point.
—It was, Tachibana Nanao’s first ever creampie.
A huge load of cum flowed out of Basara’s penis, violently streaming into Nanao’s vagina.
“Aaah——ah, ah, aaaaaaaaaaaaaaaaaaaaaaaaaaah ♥”
With white cum streaming in through the entrance of her womb, Nanao wildly climaxed.
After— Having filled her completely with cum, from her vagina all the way to her womb, Basara’s penis inside Nanao from its base blew off again.
—That should’ve been enough as an ending.
Nanao had fully submitted to Basara, and the curse mark of the master-servant contract had disappeared.
However, Nanao’s master—Basara further craved the submitted Nanao.
“—“
As he came, he bit down on Nanao’s nape, sucking forcefully into it.
It was the mark of a vampire’s submission.
Simultaneously one’s power would flow through the blood as it was sucked.
—There’s just one difference.
Basara was sending this power to Nanao, not to her neck, but to her lower lips.
And it wasn’t by blood—it’s by his large amount of cum.
But…. No, because of that, Nanao was able to be master and slave with Basara twice.
Not just as a woman, but as a half-vampire too.
Her body and her heart—and even by her race, she submitted to Basara.
Therefore.
“Aaah….. Basaraaah ♥ yaah… aaah, mmm ♥ fun, aaah…. Basaraaaaah, aaaaaaaaaaaaah—♥”
Tachibana Nanao trembled at the intense pleasure, her voice corrupted, full of sensuality.
—But at the same time the master servant curse mark disappeared from Nanao’s neck with a burst.
That told the undeniable truth.
That like Mio and the other six—she had formed the master-servant vow, becoming a sex slave.