My Idle System

Now, it was finally time for his sister to begin practicing the Space technique she had desired.

So, with his eyes twinkling, feeling the weight and pride of offering her a truly precious present, Christian rose from his chair and stepped out of the office.

His steps were light, filled with anticipation at her reaction, as he made his way through the quiet hallways toward Annabelle's room. But when he arrived?

It turned out Annabelle wasn't waiting for him there.

Instead, she was in the bath.

Did he mind?

Hardly.

He just grinned, stepped toward the bathing room, and entered without hesitation — thinking that a conversation between naked bodies wasn't bad either.

Without hesitation, he stripped — tossing his clothes to the side in a rushed pile.

He proudly displayed his well-defined body, his tight six pack, and his little brother already coming into attention, thinking of what was going to happen.

The warm mist of the bath clung to his skin as he stepped in, steam curling around his body.

Annabelle, who had been relaxing under the gentle warmth of the water, naturally noticed his entrance. A small part of her still felt the flicker of embarrassment, even after everything that had passed between them — especially in this kind of vulnerable setting. But that didn't stop her from doing what needed to be done.

With her hair tied up in a loose bun, a few strands falling beside her flushed cheeks, and her emerald green eyes gleaming with heat, she shifted her position subtly — the water rippling as she leaned slightly to the side, resting one arm on the tub's edge, letting her curves show just enough to entice.

She locked eyes with him — tempting, challenging.

Her cheeks were red. From the steam?

Or from his body arousing her already?

Even she didn't know.

Still, she glared teasingly and said, "Didn't your older sister teach you to knock? Seems I'll need to have a few words with her later."

Christian, unfazed by the teasing that clashed so beautifully with her once-serious, protective demeanor, simply smiled.

He turned his head slightly toward the door and said calmly, "Just say the word, if you're uncomfortable… and I'll go out immediately."

Annabelle stole a few glances at his hardened member, which seemed to be roaring at her with impatience, before her eyes returned to his face. She bit her lip and smirked.

"You say that like you'd actually make it to the door."

Their back-and-forth continued, electric and playful.

It was the kind of conversation they'd never had before — back when she was just the protective older sister, and he the lazy younger brother, weighed down by guilt. But now, after opening up to each other more and more… as their relationship deepened and solidified, it had become something natural. Something inevitable.

Even then, Christian didn't waste any time. He finished showering himself, all under the intense, lingering gaze of Annabelle, who made no effort to hide just how much she enjoyed watching her brother's mesmerizing body.

The curves of his muscles, the sheen of water over his skin, the quiet confidence in the way he moved — she soaked it in like a guilty pleasure she no longer felt guilty about.

After rinsing off quickly, Christian stepped into the bath.

He moved behind her, pulling her gently between his legs — his hardened shaft resting hot and thick between her soft butt cheeks, while his hands settled on her full, heavy breasts. His fingers curled slightly, savoring the feel of her shape.

Then he buried his face in her nape, breathing in her scent, his arms wrapping around her like she was the only warmth left in the world.

Annabelle couldn't help but lean further into him. Her body ground slowly against that nearly scorching rod, her back arching just enough to press herself deeper into him. Her head tilted back, nudging into his face — offering more of her neck, more of herself.

Christian was drowning in desire.

Every movement of her soft skin, the sway of her hips, the way her body molded against his — it was too much. And he knew that if he started now, their lovemaking wouldn't end any time soon.

So, with effort, he restrained himself.

"Actually," he whispered, his voice husky, "I had a surprise for you. I wanted to tell you when we were alone… so how about you stop tempting me with your body?"

Annabelle's eyes, previously glazed with lust, cleared a little at his words. There was intrigue now. A flicker of something deeper. She had felt it too, after all — back when he told her earlier that they'd be sleeping alone tonight.

Even then, she had been tempted to push things further. To drag him into passion all the same.

But in the end, feeling that they could always move to that part later, she shifted her body — turning to face him directly. Her voice laced with sultry curiosity, she said, "Oh~? And what kind of surprise is it?"

Their noses nearly touched. Her soft breasts pressed tightly against his chest, slightly deformed from how snugly she was straddling him. Below, her lower lips brushed against his throbbing shaft, nestling it between them like a fire waiting to be lit.

Christian, staring into her green eyes — mesmerized by her alluring gaze and the small black mole under her left eye — wondered if she truly understood the meaning of restraint.

In the end… he couldn't hold himself back.

He leaned forward and stole her lips, kissing her hungrily. His mouth claimed hers, his tongue slipping inside to suck gently on hers, deepening the kiss until the air between them turned heavy and thick.

It lasted minutes — warm, needy, delicious.

Then, finally, he pulled back slightly, his breath uneven, and said between breaths,

"…The Space technique… is finally completed."

Annabelle, who had been on the verge of losing herself to his every touch, froze. His words pulled her back like a sudden gust of wind, sweeping away the haze of lust. Her eyes widened — not with pleasure this time, but with something stronger.

Joy.

Not fleeting joy from his body, but the raw, bright joy of a dream finally realized. Her desire, her goal… the technique she had longed for.

It was finally within reach.