Peeping on the Twins
Squelch! Squelch! Squelch!
"Nngh!"
Ran's pitiful voice leaked out amid the lewd sounds. The girl, naked and leaning against a wooden pillar, desperately stifled the moans escaping her lips.
Was it Rin's reaction that amused her? "Hehe... Sis, aren't you just too cute? Makes you seem like the little sister instead."
Rin, pressed so tightly against her that their breasts deformed against each other, pulled her fingers from Ran's slit and licked off the slick fluids.
"Tastes good. Sis. Kinda makes you wanna keep licking forever."
Rin wore an expression of ecstasy and affection, as if savoring sweet honey. Blushing with shame, Ran squeezed her eyes shut.
"Nngh... Rin... It's embarrassing... Why the hell are you eating that?"
"Pfft, embarrassing? We're sisters, aren't we?"
"Ugh... Normal sisters don't do stuff like th— Mmph!"
Rin cut off Ran's words with a kiss on the lips. Ran resisted at first, but it was futile. Soon, she meekly accepted Rin's lips and tongue.
Smack... Smack...
Savoring Ran's surrender, Rin explored her mouth for a long while before slowly pulling away.
"...Nnh."
"Hehe."
A thick strand of sticky saliva trailed between the identical faces of the two girls. The transparent, obscene silver thread stretched precariously from lip to lip before drooping down toward their chests.
Watching from nearby, Netoru wore a subtle expression, lost in thought.
What the hell do you even call this...? Yeah, shocking. That was the only word for it.
Sex between coupling partners was commonplace. Netoru was confident he wouldn't bat an eye no matter what a man and woman got up to.
But this... well. It was something else. Something.
Same faces, same figures, same breasts... And even the pink tattoos on their lower abdomens matched perfectly—the mana nerve systems female pilots built near their uteruses for coupling.
The only difference was their eye shape, but otherwise, everything about the two girls was identical. Twin sisters—and not just any twins, but these ones—going at it behind the base? Even Netoru felt a bit disoriented.
—Slurp... Slurp...
—Ahhhn... Ri, Rin...
"...Were they always like that?"
It was evening, just before lights out. But even in the surrounding darkness, spotting the two girls lip-locked wasn't hard for Netoru. The mana nerve system he'd inherited from the knights' era was built into his body too. Channeling mana into his optic nerves pierced the gloom and foliage like a shield, revealing their naked, entwined forms in crystal clarity.
—W-Wait... That's enough. No more.
—Don't worry. Once we get dressed, no one'll see.
The angle hid Rin's body well enough, but Ran's exposed nudity was more erotic than expected. For such a tiny frame, her breasts were surprisingly large. Unexpectedly busty under the clothes. Was Rin the same?
They looked like kids on the outside, but their bodies were surprisingly well-developed.
—Nngh... What if someone sees us washing up later...
—So what? We can say we got boyfriends.
—You're insane!? Th-That'd be like admitting we're cheating...
We already have coupling partners...
—Is that a big deal?
—Idiot! Of course it is!
Rin's relentless sucking and nibbling had left bite marks all over Ran's soft, plump breasts and nipples. Amusingly, Ran didn't seem to hate it—her slender thighs were slick between them, glistening wet.
Her nipples stood stiff from Rin's teasing caresses, and her thighs rubbed together, seeking more stimulation.
—Hehe... You say that, but your body's honest, Sis.
A wicked smile curled Rin's lips at the discovery. Without hesitation, she shoved her fingers back into the slit between Ran's thighs.
—Eek! F-Fingers... two is too much...
—But one doesn't cut it anymore, right?
—Hiiik!
Was Ran always the one getting dominated? In any case, Netoru smacked his lips as he watched. Fine if he was participating, but spectating like this wasn't his thing. The rare sight of twin sisters' lovemaking was the only reason he was peeping.
"Twin sisters, huh..."
What would it feel like to lay them side by side on the bed? Probably a fresh experience. Their childlike looks were the issue, though... Still, seeing them like this, they passed muster. Who knew they were so well-endowed under those clothes? Plenty of flesh to grab...
And above all.
Netoru's gaze fixed on the mana nerve system tattoos etched on both twins' lower abdomens. Both having built theirs right at the cervix meant they could both serve as the 'key' in coupling.
With twins this identical, would coupling sensations feel the same too? Netoru suddenly grew curious.
But not now. He had to hold off. Someone else took priority first. No need to persuade this cute girl who'd rolled right into his lap.
* * *
Was rain coming at dawn? Clouds veiled the moon in a hazy glow across the night sky, with only faint moonlight slipping through to touch the window.
Depending on that feeble light, a boy sat by the window, gazing endlessly at the heavens. He couldn't hide his anxiety, sighing repeatedly.
...Recovery's too damn slow.
Hand to his chest, he roused his mana. His internal mana nerve system screamed in response, stabbing him with sharp pain—the aftermath of overtaxing a Holy Knight.
It was much better than day one, but the indefinite recovery frustrated him.
Even skilled doctors struggled with pilot injuries. More accurately, there were no clear treatments. Most pilot wounds targeted the mana nerve system, intangible nerves beyond precise diagnosis. Recovery hinged on the pilot's iron will.
So he had to push himself. To heal fast, return to base... He couldn't leave Karen fighting alone.
He repeated that vow inwardly every day—when a man sauntered up beside him.
"What're you doing up so late?"
"...Kyril. You weren't sleeping either?"
"Blame yourself. You muttering ominously by the window woke me up."
The man called Kyril leaned against the window beside Natsuo,