Chapter 137
Tilia was so absorbed in the mirror that she had not even noticed me entering the room.
At first, I wondered who it was.
That woman standing in front of the mirror wearing a lingerie dress that showed everything beneath it was Tilia Vanguard?
I had told her to dress up nicely and wait, but I never imagined she would look this different.
“D-Decal?!”
Tilia noticed me and jumped.
“Even if this is a duel, you should at least knock...!”
If she could not even hear the sounds of me having sex with Selene, knocking probably would not have helped anyway.
In any case... she was incredible.
Tilia in her uniform—or rather, Tilia from the very first time I saw her—had always given off a strong sense of carefree freedom, as if she were bound by nothing.
Her hair was naturally long, and she moved without restraint, so I had thought of her as an androgynous beauty.
That was why I had momentarily forgotten.
That this woman was Diana’s older sister.
I looked closely at Tilia’s body.
Her breasts were larger than I had expected.
I had not known because they had been so tightly bound beneath her uniform that there had been no sign of them.
Were they about the same size as Selene’s?
Her hair, which she had simply let grow out, had been beautifully combed and laid neatly down. Before me stood an elegant noble lady so lovely that the Tilia I knew vanished completely from my mind.
The gap was enormous.
It was already unbelievable that Tilia had dressed up like this for me, even with hypnosis.
A lingerie dress that exposed nearly all of her thighs and shoulders.
Just looking at her was an extraordinary luxury.
“I know it doesn’t suit me. Don’t stare.”
“What are you talking about? It suits you perfectly. I was just captivated because you’re beautiful.”
Tilia twisted the corner of her mouth into a cool smile.
“Hah... I didn’t think you were the type to say flattering things.”
“I’m serious. You were looking in the mirror because you thought it suited you too, weren’t you?”
“Do I look like the kind of person who gets intoxicated by her own reflection?
This is my first time fighting a sex duel, so I was only choosing what to wear.
Maybe I’m exhausted because I’m doing things I normally never do.”
Hearing Tilia’s words, I glanced over the bed.
Scattered across it were clothes she had presumably tried on while making her selection.
“You were choosing pretty clothes for sex with me?”
“Well, yes.”
Tilia nodded lightly.
I almost smiled without thinking, I was so pleased.
“I’m used to duels where people kill or are killed. I’ve fought plenty of battles, too. But I have no idea what I’m supposed to do in a sex duel.
I don’t even know where to begin.”
“Have you already lost your nerve?”
“Me?”
Tilia smiled confidently, looking indecent with both her breasts and thighs exposed.
“I was only thinking that, for once, I’m in the position of a challenger.
Don’t underestimate me just because I’m inexperienced with sex. Even if you beg me to go easy on you after you disgracefully come, it won’t do you any good.”
“...”
Damn. She was turning me on.
I wanted to pounce on her right away. Tilia’s breasts looked incredibly tempting.
Tilia stood with her back straight in her usual proud manner, but then belatedly became aware of my gaze and covered her breasts with her arms.
“...Are you already peeking?”
“I was looking openly. But are you sure you should cover them?”
“What do you mean, am I sure? ...It’s embarrassing.”
“No, but we’re about to have sex.
Wouldn’t covering your breasts have the opposite effect?”
“Hmm...”
Tilia lowered her arms and exposed her breasts again.
“You have a point. There was no need to cover them. But don’t call it underhanded. Equipping yourself properly to face a powerful enemy is only basic common sense.
I’m the challenger this time. I wore something as revealing as possible because I thought it would be advantageous if I appealed to your tastes.”
“I like it very much. They’re magnificent breasts. You should show them off a little more often.”
“Why? I don’t want to do that. It goes without saying that I should have a sex duel with Decal. I can’t allow other men that privilege.”
“Exactly.”
That was the suggestion I had planted.
Since it would be troublesome if all future duels became sex duels, I had added the condition that it applied only to me.
It was, so to speak, an awkward impurity engraved into the suggestion by my desire not to let Tilia be with other men.
“...? Why was it only natural to have sex duels with Decal and not anyone else...? Urgh...!”
Just now, Tilia seemed to be suffering from a severe dissonance, clutching her head as though she had developed a headache.
“There would be no point in having a fight when it’s obvious that you’ll win.
This is a handicap. A unique handicap meant specifically for me. Right?”
“...”
I distracted Tilia with a suitable reply.
I had called it an impurity, but it was a necessary impurity.
Because I did not want my woman being with another man.
Calling it an impurity had been a mistake after all.
The impurity that needed to be removed was the possibility of another man entering my harem.
Although Tilia had suffered a headache, there was no major problem.
When a conflict arose, the suggestion ultimately won out.
It was merely a minor signal that occurred when something failed to feel natural.
If I had said, “All duels are fought through sex. That is only natural,” it would have felt natural.
That would not suit someone who normally disliked things like duels, but Tilia loved duels.
The method of determining right and wrong through strength alone was the very justice Tilia Vanguard loved.
Today, because of a duel, she would become entangled with me, have sex, and even become pregnant.
Thinking of it that way was quite enjoyable.
“...That’s right. Decal is weak, so I said I would accommodate you.”
The look in Tilia’s eyes changed.
She was under powerful hypnosis. It was a sign that my suggestion had overcome even the small amount of dissonance she had felt.
“Now, then.”
I sat on the edge of her bed, pushed the clothes she had laid out to one side, and lightly patted my knee.
As if telling her to come sit there.
“Come here.”
“...”
Tilia gave me a frightening look.
“Tsk. You shouldn’t make that face. Are you trying to pick a fight? You said you wanted me to teach you basic etiquette, didn’t you?”
“Basic etiquette, ah...”
Tilia relaxed her expression, looking flustered.
“Sorry. I’m not used to this kind of duel. I got angry without realizing it.”
“Your partner is calling you. You went to the trouble of dressing up so beautifully, so you should approach gracefully.”
“All right...”
Tilia blushed and approached me as I had called her.
I took Tilia’s hand and naturally sat her down on my lap.
She had probably never been treated like this by a man before.
I placed my hands on Tilia’s stiff, tense hips and gently stroked her skin.
“Is this... basic etiquette?”
“Of course. Preparation is necessary if we’re going to make love.”
I reached toward Tilia’s breasts.
But Tilia seized my wrist and stopped me as if snatching a hidden weapon.
Ugh. How could such strength come from those slender hands?
I realized how foolish I had been to think I could win a contest of strength.
“Wait...
First, I need to confirm the rules of the ‘duel’ again before I can feel at ease.”
The duel she had wanted with me had been established, and I had even implanted the suggestion that a sex duel was only natural, but she was cautious all the same.
It couldn’t be helped. Even if she was a woman as rough and straightforward as a man, she was about to give her body—and her first time—to a man.
There was no way she could take it lightly.
Even if she understood everything and had steeled herself, there was nothing strange about being careful.
I lowered my hand and spoke.
“It’s simple. We have a sex duel, and whoever reaches orgasm first loses.
I’ll finish by ejaculating, and when you climax, you can report it yourself.”
“What’s the time limit?”
I checked the clock on the wall.
Before midnight, I had to go to the library and meet Sia.
There were four hours left.
“Until midnight.”
“...I thought we would go until morning. So we’re not doing that.”
“What am I, a sex machine? We need to sleep at night.”
Tilia’s cheeks reddened.
“Th-that was just imagination... I told you I didn’t know much... Don’t scold me.”
“Heh-heh.”
That was what I said, but there was no reason we could not take our time.
Especially since my stamina had increased considerably after coming to this world.
Just as I had with Diana, I would probably be able to continue until the next morning.
I would let her experience that next time.
Tilia’s startled expression would probably be quite cute, too.
With her hair neatly combed down and sitting demurely on my lap, Tilia was quite endearing.
“Are you done now?”
“I have one condition.”
“A condition?”
Tilia rose smoothly, picked something up from the table beside her, and handed it to me.
“Use this.”
“What is it?”
She was asking me to use a tool already?
If I did something like that, I’d become her sex instructor... Hm? What was this familiar rubbery thing?
“...A condom?”
“That’s what you call it?
I had only heard it called a contraceptive...”
Wait, they had these here, too?
It did not seem to be a mass-produced, off-the-shelf product, but it was definitely a condom.
The texture was strangely unpleasant. It wasn’t an animal intestine, was it?
“What am I supposed to do with this?”
Tilia fidgeted, as though she found it difficult to explain.
“I heard that you’re supposed to put it over the male organ and use it.
That… It was something I went to great lengths to obtain. Even if this is supposed to be a fight to the death, I don’t think I can go as far as pregnancy sex.”
“Haa.”
What a letdown.
“I’m sorry. I thought about it and realized something.
That it’s more important than my own life.”
“……”
“I’m the one who will bear the heir to the Vanguard family. I can’t just get pregnant carelessly.
It would make things difficult for the people of my family. That’s why it’s more important than my life.”
Hearing her say that only made me want to come inside her even more.
But if I said I wouldn’t use contraception now, it seemed highly likely that the duel itself would be called off.
Should I use suggestion on her again and make her understand having sex without contraception?
No, that wouldn’t do.
It was fun turning a noble lady who loved duels into someone who would duel through sex.
But breaking Tilia’s resolve at this stage would have the fatal consequence of diminishing her appeal.
“If you can’t accept this, then I…”
“All right.”
I cut Tilia off.
“I’ll use contraception.”
“Thank you.”
For now, I would do things Tilia’s way.
Then I had a good idea.
“But if I win the duel, I’ll penetrate you with my bare cock and ejaculate inside you without using contraception.”
“What…? Why would you want something like that?”
“Because I want to take away the thing that’s more important to you than your life.”
I could have the most mind-blowing sex.
Tilia glared at me, openly hostile.
“Fine…….
It’s easier for me if you come at me like that. I’d feel guilty if you were the only one taking a life. If you beat me, you can do whatever you want, pregnancy sex or anything else. The world of duels is absolute. I’ll give up something more precious than my life without a word of complaint.”
I reached toward Tilia’s breasts as she stood there.
She knew where my hand was headed, but this time, she didn’t stop me.
I kneaded Tilia’s soft tits, as though relieving the humiliation I had accumulated at the dojo.
“……”
Embarrassed, Tilia pressed her lips tightly together and turned her head away.
Such a fresh reaction. I loved it.
But what should I do?
First, there was the condition of bringing her to climax. I could satisfy it easily with hypnosis, but even without that, a clitoral orgasm would be simple enough.
As long as I properly removed the sense of resistance Tilia was feeling.
But making a virgin climax through penetrative sex would be difficult.
It was easy to make her climax by stimulating her clitoris, but difficult to make her feel pleasure from penetrative sex.
Should I give it a try?
I was also curious whether Tilia and I would be compatible in bed.
I could always hypnotize her later.
The spirit of challenge that had been sleeping inside me began to burn.
Then first, it was important to guide her into feeling comfortable.
I changed the way I caressed her.
I stood up and lightly embraced Tilia.
“Relax your body. Leave yourself to me.”
“You’re not saying that because you intend to give yourself an advantage…?”
Tilia shot me a sharp glare.
Haha. No wonder this was a duel—her wariness was adorable.
“It’s not like that. This is the preparation before having sex.
When you’re caressed, your vagina gets wet, making penetration easier. If your body is stiff and tense, it’ll only hurt both you and me.”
“……It doesn’t sound like a lie.”
“I told you, it’s not a lie.
Do you really think we can feel good while we’re both lying to each other?”
“All right. What do I have to do?”
How innocent.
There was no way we could have a duel through sex in the first place.
The basic principle was to adjust to each other and heighten the pleasure.
Of course, there were times when sex that ignored the other person’s wishes could feel good too.
Tilia was trying to defeat me in a duel, while at the same time having no choice but to listen to my advice when it came to sex.
That made the way she concentrated on my words all the more adorable.
“Relax, make yourself as comfortable as possible, and accept my touch.”
“So I can receive what you call caresses?”
“That’s right. Feel as much as you can.
That way, your pussy will get wet faster.”
“……All right. I’m used to pain, but if you’re in pain, you won’t be able to make me come.
I’ll feel as much as possible so I can receive penetration.”
Some of the tension left Tilia’s body.
She let me support her weight and quietly felt my touch.
This was going quite smoothly.
“Will you take my clothes off?”
I said this while facing Tilia.