Coming to an Agreement (2)
"Hah, hngh. Ah, oh, nngh. Heuk?!"
Charlotte's hips jerked hard as Isaac's fingers stroked her sex, caressing it with a touch almost like a soothing pat. Her eyes trembled as though she'd been struck by lightning, and in truth she felt as if her entire body had been electrocuted.
"Kyahhn...!"
And Isaac's touch was growing steadily bolder. After letting out that cute little moan, Charlotte flinched in surprise and clapped both hands over her mouth, rolling her eyes behind the thick cover of her palms.
Isaac looked down at his little sister and drew a faint smile.
"Feels pretty good, doesn't it, Lottie."
"...Ah, n-no, that's not—"
"Want me to make it even better?"
"...Huh? Ah, uh. Hngh?! Hek...!"
Of course he had no intention of stopping. The last thread of his reason was already half-severed, and the little sister who'd driven him to this state was thoroughly infuriating. Isaac let out a dry laugh as he watched Charlotte pant, her breathing already ragged.
"...And you were going to go weak this fast? You had the nerve to come at me like that, Lottie? Hm?"
"...! ...?!!"
"No, go on. Tell me. This is what you wanted all along, isn't it? You could shove me off anytime you wanted if you used your strength. So why are you just lying there taking it?"
"Ah, nngh...!"
Charlotte twisted her body hard, squeezing her eyes shut and then opening them again. There was more than one thing she wanted to protest.
Yes, she'd had her own ideas. It wasn't wrong to say she'd been hoping for something like this, deep down. But...! But! She had never once accounted for stimulation this tingling, this close to the breaking point!
Shove him off? She couldn't even get her body to put any strength into it...!
"Hau, hauu, w-wait, Oppa. Just wait a second, I really—?!"
"Mm, no."
Squelch...!
It happened without warning. Just being touched there — between her legs, her most sensitive place — by the Isaac she loved so desperately had already been her limit.
...Ah...? Ah? Uh?
She hadn't imagined for a second that something would push inside her without any warning at all. Charlotte looked down at her lower body with a dazed expression and saw Isaac's index finger connected to the inside of her.
"...Hngh, ghk?! Heub. Hhk."
A beat later, lightning drove down through the crown of her head, and her whole body convulsed. Charlotte's eyes rolled back once.
Fssht, fwoosh...!
Then, trembling like a frog that had been electrocuted, a stream of clear fluid sprayed from between her legs — one jet, then two. She'd already been soaked, her juices flowing freely. And now, with an insertion she hadn't seen coming, Charlotte couldn't hold on any longer.
"Heeung."
The voice that spilled from her as she blinked her hazy eyes over and over was utterly undone. Her face was flushed red, ready to burst. Her blood-red eyes were steeped in affection and desire. And still the corners of her mouth kept twitching, unable to stay still, as if they were broadcasting exactly how she felt.
Climax. Orgasm.
At the hands of her own older brother. At Isaac's hands...
It was her first climax.
"...What. Already?"
Isaac was just as startled. His incredulous voice slipped into Charlotte's ear like a whisper, while she was still panting, still unable to collect herself.
"You were a lightweight, our Lottie."
"...Hek! Hit?!"
Just hearing that one line — cool, settled, laced with a hint of mischief — was enough to nearly send her over again. And Isaac didn't stop there. He licked a drop of her clear fluid from his cheek with his tongue, then started moving his finger again.
"...You have to pay the price for teasing your heavenly older brother. Don't you?"
"...O-Oppaah."
"We're not done. I'm just getting started."
"Lo-Lottie was wrong...!"
"Acting cute won't help. No means no."
Squelch!
"...Hyaang?!"
Another adorable cry burst out. Isaac wore a shiver-inducing expression, but he had no intention of stopping his handiwork.
"I'll send you over twice first. Then the real thing starts. Got it? Remember that, and keep your wits about you...?"
"Ah, I can't, Oppa, hek, eub, hhk...!"
"...You said you wanted to mix bodies with me. You did."
As if he would tolerate no more resistance, Isaac dropped his voice even lower.
"Eub...?!"
And still gripping Charlotte's wrists, he crushed his lips over hers once more. His little sister was beyond panting now — she was on the verge of tears — and he was forceful about it. As if her looking like that only made him want to torment her more.
"It's too late to try and push me away. You came on to me first. You... you came after me..."
"...Heeung, hauuk, hhp."
"...You damn little sister."
Even as Isaac spat out one savage remark after another, Charlotte's blissful expression showed no sign of fading. Strictly speaking, she was suffering — and yet the corners of her mouth kept stretching into a foolish grin...
"Hah..."
Isaac was genuinely losing his mind.
She was enjoying this? After being treated like this?
Is my little sister actually a goddamn pervert?
...He couldn't tell. And he didn't particularly want to look any deeper. Something about it made him nervous.
In the end, he let out a long breath and resigned himself. The deed was already done. Regret had come too late — and yet this situation, this unbelievable situation of fingering his own sister's crotch...
He really didn't want to admit it, but it was satisfying a thrilling sense of transgression and desire in him, too.
Isaac exhaled a heated breath and shoved his finger in rougher still.
"—Nngh, hek?!"
Charlotte reacted. She clamped her thighs tight around his arm and wouldn't let go, and her lower belly clenched as if seized by a cramp. The second climax was coming. Certain of that future, Isaac let out a small, cold laugh.
"Do go on and come spectacularly, you bitch of a little sister."
"Hic, hyeng! Heeub...?!"
Fwoosh, fwoosh...!
And as if she'd only been waiting for those words to be whispered in her ear, the water came spraying up. A jet of fluid shot up like a fountain and soaked Isaac's upper body, and Charlotte convulsed her hips even harder at the sight.
"Hek, hhk, uh, heeeuh...!"
Female ejaculation. It wasn't a common phenomenon, but somehow it didn't seem all that rare a sight coming from Charlotte.
Isaac finished that brief internal review, then pulled his finger out. His hand, thoroughly soaked from inside her, was a complete mess... but it didn't particularly matter. On a fleeting, impulsive thought, Isaac hesitated a moment — then put that index finger in his own mouth.
"...Eh, hek?"
Charlotte's eyelashes trembled. As if she couldn't believe what she was seeing.
Th-th-th-that, why are you... eating that?
She was genuinely horrified, and yet she couldn't help the way her body shivered. In her head it was embarrassing, shameful, and she couldn't believe her older brother's indecent behavior. But the way her filthy body reacted to the sight was a separate matter entirely.
"...A little salty."
"Don't rate the tas—?!"
Whap!
Isaac's disappointed-sounding remark was more than Charlotte could take. She bellowed at the top of her lungs, then grabbed the nearest pillow and hurled it at him — not that it did much damage.
"Hah, hah... Nngh...?"
She'd been breathing hard, still not over her indignation, when she suddenly froze. Something had entered her field of vision.
"...Uh..."
Isaac's pants — his lower half — had been off since he'd started tormenting her lower lips so terribly from the beginning. And so, of course, it was visible... that hard, flushed, unmistakably male...
"—Ah."
Charlotte let out a dazed sigh, and Isaac soon noticed her burning gaze. How could he not, when she was staring that hard? His eyes dropped to his own lower body before he could stop them, and he couldn't hold back the hot rush that came up. A low sound escaped him.
"Mm..."
"..."
A heavy silence settled between the two siblings. It felt as if it would never end. And yet it had no choice but to end... that hollow, pointless silence.
Gulp!
The only thing that rang out clearly in that stillness was the sound of someone — it was impossible to say who — swallowing a dry throat.
Charlotte's face flushed crimson. Isaac bit his lip softly.
"...Th-uh."
It was the little sister, not the older brother, who broke the silence that had seemed eternal. Charlotte looked up at Isaac with glittering eyes and let her voice spill out.
"We've already come this far, Oppa..."
"..."
"...Want to do it? R-raw?"
Isaac looked at his little sister — who was casually saying something insane like that — as if she were literally a crazy woman. But the fact that he couldn't bring himself to refuse told him they weren't all that different.
Before long, Isaac reached out with the serene expression of a man who had let everything go.
"Lottie..."
"...Y-yeah."
"..."
Of course, what he took hold of was, needless to say, Charlotte's thigh. Isaac looked at her with eyes that had grown even more serious, and murmured low.
"...!"
And Charlotte answered with all her strength, wearing the expression of someone who had just received the happiest command in the world.
"Yes...!"