Taboo Sin System

Chapter 3 Taboo System

Pan had never seen a woman fully nude before. Not in real life.

Family beach trips did not count. Catching a look at a girl in a bikini across the sand had been the high point of his summers. He had never got closer than that.

Now he lay wedged under Lila's bed with dust in his nose, and the towel was on the rug beside his face. Above it stood a naked young woman he could not see.

Forbidden thoughts moved into his head without asking.

But Lila is family. She is supposed to be off-limits. No, let's be real.

The Osbornes treated him as one of them only when it suited them. The rest of the time he was a servant with a bedroom over the garage and a back full of scars.

The two eldest Osborne girls had made torturing him a full-time hobby. Ten minutes ago the eldest had confessed to it on the phone. She laughed about it, then called him a loser.

Didn't that justify a stolen glance at Lila's body? A small act of revenge. Cosmic rebalancing.

The risk kept him pinned to the boards anyway. One wrong move and the whole mansion would come running.

Gregory with the belt. Gemina dialing the cops. Tanya looking at him like he was a monster.

Pan could already hear the accusations. He could already feel the leather and the handcuffs.

Lila's wet feet crossed the rug and stopped at the wardrobe. Right in front of the third drawer, the one holding her bedroom secrets, the one he had forgotten to close.

"Huh. That's weird. Did I leave that open?"

A foot tapped twice on the rug. "Whatever. Christina is probably snooping again, trying to discipline my choice of clothes. I will deal with her later."

Clothes rustled above his head. Something came out, and the drawer slid shut.

Then the sounds began.

Lila lifted one foot off the rug and put it down. Then the other. She shifted her weight as she stepped into something, and silk slid up her two long legs an inch at a time.

The elastic snapped home tightly on her hips.

She's my sister. I can't be feeling this about her.

Unfortunately for Pan, his body had no moral compass. Blood rushed down south. His dick swelled against the denim until the seam bit into it.

Pan clenched his teeth and tried to force it down. His remaining brain cells staged an intervention, but lust won the argument by a landslide.

A clasp clicked shut behind Lila's damp back. Straps went up over shoulders he could not see, and settled with a small sound on her soft skin.

It's the red lingerie, Pan figured. He knew it was red, because she had told Mia so on the phone while he lay here listening. His eyes had been drawn to that pair before he shut the lid on it.

No. I hate my sister. There's no way I will lust after her!

Pan wedged the erection between his thighs and squeezed his eyes shut.

That only made it worse. With his eyes closed the sounds of silk on skin had nothing to compete with, and his head filled with their echoes.

The pressure built until he thought his skull would split.

No! Stop it!

The air in the room went heavy.

Something woke in his veins that had no business being there. His vision flickered, blurred, and then sharpened until he could count the threads in the rug.

Behind his closed eyelids, a blue panel lit up.

[INCESTUOUS URGES DETECTED] [CRITICAL THRESHOLD REACHED]

[Adapting to the planet's environment] [Adapting to host body and mind]

[LOADING THE TABOO SIN SYSTEM] [Proceed? YES / NO]

Am I hallucinating? Pan opened his eyes and blinked hard to make it go away.

The screen did not vanish, and neither did the prompts. It stayed floating in his vision like it owned the space behind his eyes.

Of course.

Three years of system novels and webtoons on Leo's laptop told him what he was looking at. The shock passed fast. What replaced it was curiosity with a sharp edge of suspicion.

The thing was real. By some stroke of luck or destiny, Pan had received a system.

But what kind? Money, power, skills, or all of them?

And why was it called the Taboo Sin System? The name alone made his stomach twist.

Pan looked at the two words floating in front of him.

If his life was turning into a manhwa, he was not about to hit NO and go back to being the Osborne family's dog. Whatever this thing was, it was the first advantage he had ever been given.

And a boy with no money, no name, and no allies did not get to inspect a gift.

Pan swallowed and picked YES.

The blue light flashed. New text scrolled down with a soft chime.

[TABOO SIN SYSTEM ACTIVATED] [Demo Version]

Why a demo? How do I get the full version?

[Complete the first challenge to unlock the Premium Version]

[Challenge: Voyeurism of a female in underwear] [Time limit: 60 seconds]

[Failure will result in permanent deactivation. The system will be sealed]

[00:59] [00:58]

Wait. What the hell was wrong with this system? The price of activation was watching a woman in her lingerie? Moreover, voyeurism meant she could not find out.

Pan was no pervert, least of all for the two girls responsible for the scars on his back. But at eighteen he was no saint either. He dabbled in p**n late at night by stealing Leo's laptop while the golden boy slept.

A real voyeuristic situation was uncharted water for him.

The closest Pan had come to this kind of behavior was catching an eyeful of Gemina bending over in the kitchen. Her yoga pants were stretched tight across her backside. He had then sworn the woman was flawless for her age.

That had been a moment of pure, guilty heat. This was something else entirely.

[00:51]

The system did not care about his crisis. The timer ran anyway, and the bed frame did not get any lighter on his spine.

Goddammit. The universe had never given him a helping hand. Now it had thrown him an impossible quest, on terms he did not get to negotiate.

But seriously, why did the system's first demand have to be borderline incestuous? It asked for a massive moral compromise.

Looking at Lila as a voyeur went against every line he had drawn for himself, even if those lines had been drawn out of survival rather than principle.

Breathe, Pan. Breathe. He was the main character here, wasn't he? And main characters did not have panic attacks over ethical dilemmas right at the start.

Calm down. This twisted prompt was not a crisis. It was his ticket out of the Osborne family asylum, an ultimate cheat code to rewrite his miserable existence.

Lila's feet turned toward the mirror. "It's nine fifteen already. Mia is going to kill me."

Pan stopped arguing. Every scar, every humiliation, every morning of slavery could start ending right here, if he was willing to cross one line.

Yeah. Exactly. Let's go with that logic. No guilt, no shame.

[00:45]

Dear sister, you're not going anywhere until your loving brother sees you in underwear.