RE: Keep it in the Family (Secret Class) 186 — The Comet

Su Ah's POV:

A biting cold first grazed her skin, then seeped deep into her bones, originating from the stone floor beneath her.

Morning, a thought flickered dimly. However, it wasn't morning. The cave was plunged into a deeper darkness than when she had drifted off earlier.

The next sensation she registered was warmth. A solid mass of muscle and heat pressed against her back. A limb lay heavy across her waist, drawing her near. The breath of another body brushed the back of her neck. A shiver coursed through her, and she found herself pressing backward. She yielded into that warmth until not even the slightest gap of air remained between their bodies.

Sleep began to recede from the edges of her awareness, much like fog dissipating over a tranquil pond.

And as consciousness returned, so did the feeling—not pain, but a deep discomfort. A persistent awareness of her body having been stretched and thoroughly entered. It had been a dull ache when Jae-il first penetrated her. Nothing sharp, merely a slow, pleasurable burn of entry. Subsequently, his considerable girth had awakened every nerve within her core.

A delicate fullness lingered now that he was no longer inside her, almost as if her passage instinctively yearned for him still.

Even her vaginal walls seemed to twitch involuntarily. She drew a breath, experimentally tightening them and sighing with pleasure at the resulting ache. Then she relaxed them, and they enveloped the emptiness, milking the ache with every subtle shift, coaxing a throbbing sensation from her overused, sensitive inner flesh.

Somehow, Jae-il and his potent masculinity were making her vagina purr with contentment.

To be filled, then empty... it was an intoxicating cycle, her sheath seemingly clinging to the phantom presence of him within.

Behind her, her younger brother emitted a long, drowsy sigh. Her neck prickled as warm breath flowed down her spine, her brother's forehead brushing against the nape of her neck. Her eyelids fluttered as the vivid memory returned—that same sensation of him panting, groaning, teetering on the absolute edge of release, right into her ear.

And she distinctly recalled his words, his raw, unvarnished honesty during their intimacy, which made her feel profoundly ashamed and mortified, yet unbelievably aroused in that moment. It was as if she questioned, 'What the fuck? Am I even more of a pervert than I initially believed?'

Because having the unvarnished truth spoken from those exquisite lips of his had the effect of transforming her entire being into a cauldron of bubbling liquid magma. Who could have predicted that Jae-il possessed such a hidden dimension?

Perhaps he, too, reveled in the forbidden nature of their connection? Once one transgresses a boundary, the potential for further perversion expands limitlessly, she pondered internally.

A flicker of shame arose. Briefly. She was his sister—his elder sister by several years, the one who ought to be a guiding influence, not the one leading them both down this path. But the memory of Jae-il's final, guttural groan as he found release within her—heaven—all those considerations dissolved as readily as the rainfall had washed away everything outside their rocky shelter.

How could she resist desiring more of that profound bliss when she felt remnants of it slipping and oozing from her?

She would bear the weight of guilt and shame if it meant experiencing that intense euphoria repeatedly. And Jae-il desired her too, didn't he? If their actions meant eternal damnation, they would face it together.

It required an immense reservoir of self-control to refrain from turning around and embracing him fully. Instead, she remained still, acutely aware of her younger sibling's hand resting upon her abdomen. His erection—no longer small—pressed insistently against the back of her thigh.

A subtle movement behind her interrupted her thoughts. Jae-il's body stirred. "Noona, are you awake?"

His voice lacked its usual sleepy drawl. He must have been feigning sleep. "Jae-il... you barely slept at all, did you?"

A low, languid chuckle emanated from him, sending vibrations along her back. "I much preferred observing you snore like a trucker."

"Snore—like a trucker?!?! What the fu—Are you—"

She managed to exclaim, indignant, her spine suddenly rigid as steel. But a palm pressed her back down. "Stop. Move. Your ass feels so much better." He interjected.

"......"

She huffed, shifting slightly against his back. There was a distinct pressure against her upper thigh, a delightful friction that persisted and seemed to delve into her gluteal cleft, searching—for what, she wasn't entirely sure.

"Is your morning wood thirsty, hmm?" she teased, a faint blush creeping onto her cheeks. "Not satisfied from last night?"

"Ah, Noona... I can last through the entire night and well into the day. My thirst is perpetually unquenched."

And they both could attest to his brutal honesty regarding the latter statement, as his arousal throbbed with renewed intensity right between her buttocks. She smiled. "Incorrigible, Jae-il."

"Right back at you, Noona. You truly are a bad influence on your poor little brother, leading him to a secluded mountain where you could easily and most irresponsibly end up making love to him with every fiber of your being while he begs for more. Tsk tsk. Precisely the kind of woman I ought to be avoiding at all costs."

A small chuckle escaped her lips involuntarily, though her pulse quickened. "Are you referring to the same little brother whose rather substantial member is pressed against my lower back right now? If so, should I then consider myself a victim of your assault? Did you violate the moral purity of your good, righteous, and unfortunate noona?"

Jae-il erupted into laughter, prompting a suppressed giggle from her as well. She was becoming increasingly aware of her own discomforting state—damp and grimy from their prolonged wrestling and rolling around without the opportunity to properly clean themselves.

"Yikes," was her little brother's pithy response, yet even in that single word, a spark of amusement could be detected in his tone.

Their fingers intertwined beneath the covers, a loose clasp. A comfortable quiet settled between them as they lay spooning within their small sanctuary.

Su Ah then turned fully within his embrace, mindful of her tender spots, to face him directly.

In the dim light, she perceived his handsomeness more acutely than before—not the charming cuteness of a child or the fleeting appeal of a teenager, but a mature attractiveness that would naturally draw a second glance.

If Jae-il were to walk down the street at this moment, it’s likely that countless teenage girls would be utterly captivated.

'.'.

An overwhelming sense of satisfaction and elation filled her as the thought formed. '.'.

It crossed her mind that she could, if she so desired, kiss him right at this instant, caress him, do anything her heart contented. She could press against him until he was overwhelmed and entered her. Right here, right now.

Yet, paradoxically, this newfound liberty was also quite daunting—so intoxicatingly alluring and thrilling.

The allure proved irresistible. Before she fully realized her actions, she had shifted onto her side, moving closer until Jae-il was compelled to prop himself up on an elbow. She giggled when he feigned a startled retreat, her amusement growing.

This was the effect Jae-il had on her—eliciting happiness, a truly genuine joy she had never experienced before.

When was the last time she had truly smiled and laughed with such unrestrained delight, like a carefree child?

Perhaps, deep down, beneath layers of her being, Su Ah harbored a profoundly lonely and wistful spirit.

"Ahhh, Noona is the absolute worst... preying on her poor, innocent, and unsuspecting little brother. Utterly despicable and unethical behavior," Jae-il lamented dramatically. A smirk touched her lips.

Her arm tightened around his shoulder in a comforting hug, and she pressed her mouth to his. It wasn't an act of lust or sensuality, but rather a tender, affectionate greeting. She continued to bestow kisses upon him, covering every accessible part of his face.

His facial contours, his cheeks, jawline, and nose, the elegant curve of his eyebrows, and even the gentle shape of his lips—Su Ah cherished them all with her lips. Jae-il playfully wrinkled his face and attempted to ward off her advances with the back of his hand. "Ewwww, Noona."

"Ewww!? What do you mean, 'Ewww'?" Su Ah couldn't suppress her smile. "You didn't seem to think it was 'eww' earlier!"

Jae-il chuckled as he reached for his smartphone, still engrossed in their lighthearted exchange, to check the time. "You really shouldn't be doing these sorts of things to your little brother; otherwise, I'll be traumatized for life, Noona!"

"Since when has Jae-il ever been traumatized, hmm?"

"Oh, blast it, it's actually quite late. 9 PM already."

His response was so unexpected that Su Ah blinked in surprise.

"9 PM? Seriously?" She hadn't realized she had slept for such an extended period. When had the rain started? Likely around five in the afternoon, when they had sought refuge in this cave. "Wait... has the storm passed?" She strained her ears, listening for any sound from outside.

Jae-il shifted into a cross-legged position, extending his arms and twisting his upper body from side to side with a series of audible pops.

"A while ago," he grunted, rising to his feet. She watched, mesmerized, as the sleek, defined lines of his bare torso moved and flexed beneath his smooth, almost flawless, pale skin. "You were completely out of it."

A warmth spread across her face and neck, and her eyes suddenly brightened. "There's still a chance, Jae-il! The comet! We can still make it!" she exclaimed, springing into action and darting toward her clothes, which, though still quite damp, were perfectly wearable.

By the time she had pulled on her wet attire and rejoined him, Jae-il was already securing his pack. Darkness had fully descended by the time they emerged from the cave into the cool mountain air, which was now clear and invigorating.

Stretching above them was a night sky, utterly pristine and free from any atmospheric pollution.

Su Ah stood beside Jae-il, utterly captivated, gazing silently at the immense canvas of the heavens.

A/N: Everyone! I've released my new story, please check it out here -> Shota Isekai - These Women Are a Little Weird...?