RE: Keep it in the Family (Secret Class) 183 — Under the Stars V (NSFW)

Su Ah's POV:

A peal of thunder that crashed over them nearly drowned out her words. Nevertheless, she could distinctly feel his reaction, his cock hardening.

A thrill coursed through her.

She tucked her head beneath the covers, but her embarrassment vanished within three seconds.

Silence followed, with no other sound or movement. Jae-il remained quiet. Su Ah began to tremble uncontrollably, sensing a subtle shift in his posture. "Are you absolutely sure, Noona?"

Su Ah closed her eyes, questioning herself. Was she sure? Gods, she hadn't felt more certain about anything since the sky was blue and the grass was green.

Her mind, ever the traitor, flashed to Mia's image. What would her Unnie think? She visualized the intense gaze her sister would fix upon her—a mix of judgment and jealousy—if she knew how far Su Ah was willing to go to capture Jae-il's heart and body.

Ah, but Mia already knew. She was privy to everything happening behind Su Ah's back.

Back home, Mia certainly understood the reason Su Ah practically dragged Jae-il into her room.

This led Su Ah to contemplate Mia; what would she have done in Su Ah's current position? Not that her Unnie was still a virgin. Su Ah was certain Mia had been intimate with Jae-il at least once. Perhaps more times than necessary.

Mia Unnie would have boldly taken charge.

She might have even teased him.

Her Unnie would likely have flipped him over without a second thought, pulling Jae-il onto her, laughing about the forbidden and thrilling nature of their actions.

Mia would have wielded this moment as a weapon, further solidifying Jae-il's belonging to her and no one else.

But Su Ah? She closed her eyes, not from shame, but from an overwhelming desire.

She wondered when this became inevitable—this mutual freefall they were experiencing. It wasn't just the first time her heart skipped a beat when he looked at her, nor was it when she started fantasizing about how he would take her.

No, this entire situation had been brewing all along.

And in this plunge, it was Su Ah who had reached out and taken his hand.

Was Mia the more sensible one for seizing what she desired, or was Su Ah worse for overthinking yet succumbing anyway?

"I am sure." Her voice was now steady, devoid of any doubt as she finally met his gaze. "More sure than I've ever been about anything."

It was as surprising to hear these words leave her lips as it was for them to be spoken. Su Ah waited, searching his handsome face for any sign of rejection. But Jae-il simply remained still and watchful, his patience unwavering until the final moment.

She loved him.

Su Ah genuinely, truly loved him. It seemed absurd how rapidly this had unfolded, yet it wasn't ridiculous at all to comprehend her feelings for him.

"So please, stay with me tonight."

There, it was said. No possibility of turning back. Not even a hint of regret.

She simply couldn't envision a scenario where he wasn't the one beside her.

"......"

Jae-il probably had a prepared speech tucked away, one he likely delivered to Mia the first time they found themselves in a situation like this. And every time thereafter. She was convinced her responsible younger brother would want to explain himself, set boundaries, discuss ground rules, and talk about the consequences, the complications, and everything they needed to prepare for...

There would be no speeches this time.

Not tonight, because the instant Su Ah gave her consent, she felt herself being suddenly shifted and moved. A heavy, naked form of a boy crushed the air from her lungs as he positioned himself above her.

The sleeping bag was not designed for two occupants, and neither of them were exactly petite individuals to be crammed into such a confined space.

"Is this something... you... you want too, Jae-il? Be honest..." Su Ah managed to say between soft, teasing nibbles along her lower lip. He was driving her wild. Her entire face was undoubtedly flushed a deep crimson.

While she wouldn't have exited the sleeping bag and redressed if Jae-il wasn't as willing as she was, she still yearned for confirmation.

"I know what I'm feeling right now. This, with you. I want it too, Noona." He spoke, his gaze intense yet free of judgment or blame. She appreciated this more than words could convey. "The rest, we can figure it out as we go. One day at a time. No expectations, no pressure. No obligations, just us, however we desire. We'll see and decide, and we'll simply... be. However we choose to be."

Before Su Ah could voice her agreement, he placed a kiss upon her lips. It was gentle, yet not chaste. It lacked the shy reserve of two inexperienced partners embarking on their first intimacy.

He cupped her breasts, his thumbs playing with her nipples.

She gasped, and he seized the moment to nip at her tongue, sucking and lapping at each other. Su Ah allowed him to delve deeper until her brother broke the kiss, thereafter licking and nibbling his way along her throat.

As he captured a nipple between his teeth, a leg pressed against hers, urging her to part them.

"Gently..." she whispered, her face flushing with heat.

He acknowledged her with a nod, lifting his head to regard her with an expression of utmost seriousness and attentiveness.

He echoed her word, his hands, however, began to trace the inner curves of her thighs, a light caress that slid and circled.

Su Ah had mused whether this moment would irrevocably alter everything between them—her connections with Mia, with Jae-il, her family, and even her perception of herself.

It undoubtedly would.

What remained unknown to her was the extent of this path's reach, nor could she begin to fathom the future encounters or the repercussions this initial act would unleash.

The celestial comet above had vanished, obscured by storm clouds gathering over the mountain.

It would soon depart, its once-brilliant light perhaps now forever diminished from the promise its passage held. But until it traversed the skies above this part of the Earth, until the very moment it vanished beyond the horizon, Su Ah would not witness it. Perhaps not once more, not ever again, after tonight.

Much like her innocence. Much like this, her first time.

In time, she would likely experience regret, perhaps even grow to resent her own naive and overly emotional disposition.

But for this present moment? This breath held just before the plunge, this suspended pause before the inevitable descent, was everything.

Su Ah's eyelids fluttered as she felt a hot, swollen tip position itself between her folds. That exquisitely pleasurable slide left a lingering wetness.

She raised her hands to cup Jae-il's face, drawing his gaze to meet hers. "Jae-il...?" she murmured, her eyes blurring slightly. "Look at me while you do this. I want to see you..."

Her eyelids then drifted closed into a languid, almost sleepy half-lidded state, her mouth parting with a slow unfurling as Jae-il's cock breached her, sliding along her slickness as he sank deeper. A shuddering gasp escaped her parted lips.

Su Ah tilted her chin upward, arching her chest toward her brother, her stomach drawing inward. Jae-il could have uttered a million words; it wouldn't have mattered, given the low, guttural sound that tore from him, a sound she barely registered.

The stretching sensation burned as he entered her. A delicate barrier offered momentary resistance before quickly yielding to a single, steady push forward, no more substantial than the torn wrapper of a condom.

A sharp, tearing sensation sent a burst of stars exploding behind her eyelids.

Perhaps that fleeting obstruction hadn't made a significant difference for Jae-il, judging by the blend of pleasure and dawning concern visible on his face. Su Ah observed him swallow, his throat working beneath a sheen of sweat, the cords in his neck standing out, dark strands of hair clinging to his temples.

But Su Ah felt its absence acutely.

A sudden flash of pain as that minuscule barrier vanished forever. Her expression contorted, teeth clenched, tears welling in her eyes.

She gasped, her body trembling, yet she maintained his gaze, watching his pupils engulf the beautiful violet hue of his irises as he sank deeper into her warmth.

Her passage resisted as inches disappeared within—tight walls fighting the intrusion, then reluctantly yielding. She emitted a soft cry as he reached his limit, their hips pressing together in a firm embrace.

A faint recognition dawned that the wetness pooling beneath them was not solely from her arousal.

Blood. Her testament. Her first offering, not taken but openly given. This crimson sacrifice would indeed change everything.

Jae-il remained utterly still, his breaths coming in ragged gasps through slightly parted lips as he hovered above her. He kissed the path of tears trickling down her temples, tears she hadn't even realized were falling.

"Should I stop, Noona?"

Su Ah attempted to reply, finding her throat too constricted, and managed only a shake of her head. As she regained command of her limbs, she wrapped her ankles around his thighs.

"No," her response came out strained, yet honest.

He began to move. Initially, with just subtle undulations that tested her constricted passage.

Then, Jae-il's hips eased downward, his erect member retracting inch by inch from his older sister's womanhood, until he could go no further, buried deep within that sweet, molten silk.

The stretching sensation and the profound fullness within her were utterly intoxicating.

"Ohhh...."

"Ohhh....!!"

They both gasped into each other's mouths, sharing the same breath in a fervent cycle.

Su Ah's heart pounded furiously. She clung to him tightly, her hands finding purchase at the nape of his neck, twisting the hair there. Then, as Jae-il set the rhythm, her hands slid down his back, her nails digging in hard enough to nearly gouge his skin.

The pain rapidly dissolved, transforming into an intense pleasure that coursed through her, suffusing her very flesh, reaching from her fingertips to her toes.

Su Ah tilted her hips, lifting her pelvis, instinctively seeking to maximize the friction with each inward and outward movement.

This was unlike anything she had experienced through self-pleasure.

"Oh, God…" Su Ah moaned. "Oh Jae-il, yes~"