Depraved Noble: Forced To Live The Debaucherous Life Of An Evil Noble!-Chapter 578: Big Sister Loves You No Matter What

Aqua had never truly liked the night.

It wasn’t that she feared the darkness or the quiet; quite the opposite.

As a child, she had adored the stars that blanketed the sky and the gentle silver glow of the moon.

She would spend hours cutting paper stars to decorate her room, and even as an adult she still wore subtle star-shaped embroidery on her gowns and nightwear—an endearing habit everyone in the palace found impossibly cute.

But the night always carried a deep, aching loneliness for her.

This was because in the daytime, the world was alive.

She could chase Joy through the palace gardens, tease the maids until they scolded her with fond smiles, play pranks on the guards, or curl up in her aunt the Empress’s lap for stories.

Her mother, though endlessly busy as the Empress’s closest aide, would always steal moments to brush her hair or kiss her forehead.

There were endless possibilities, endless voices and laughter to fill the hours.

But at night, everyone slept.

The grandest room in the entire palace walls painted with murals of constellations became a cage of silence.

She would wrap herself tightly in blankets, staring at her paper stars, feeling small and forgotten.

Her mother was off to her duties. Her other relatives were distant, both in blood and in affection. And so night after night, even as a little girl, Aqua felt the ache of being utterly alone.

Tonight, though...tonight was supposed to be different.

Tonight, for the first time in years, she wouldn’t feel that hollow loneliness.

Because she was finally home.

Finally with her little brother again.

As children, whenever the emptiness became too much, Aqua would sneak out of the main palace and tiptoe across the grounds to Cassius’s smaller mansion.

She knew he suffered the same quiet terror of the dark, the same hollow ache of being alone. They were kindred spirits in that way.

On those nights she would slip into his bed, wrap him tightly in her arms, and hold him like a treasured teddy bear. She could feel his small, warm breaths against her collarbone, his little hands clutching her nightgown. In his embrace the darkness lost its power.

Those were the most peaceful, warmest nights of her life.

Then their father had sent her away.

The cuddles stopped.

The warmth vanished.

And the nights grew lonely again.

But now she was back.

And the moment she had arrived, she had shyly approached Cassius’s wives—those wonderful, kind women and explained, cheeks pink, that she missed sleeping beside her little brother the way they used to.

Just to feel close again. Just for one night.

She had braced herself for jealousy or awkwardness, having read countless stories of sisters-in-law who could never get along.

Instead, they had smiled warmly, hugged her, and told her of course—he was hers tonight, no hesitation, no questions.

They understood family. They understood love.

Aqua had nearly cried from gratitude. This family was so open, so loving. She felt truly welcomed.

So she had slipped into Cassius’s bedroom ahead of time, changed into her softest silk nightgown, and climbed into the center of his massive bed.

She wanted to surprise him—wanted to see his face light up when he realized his big sister was waiting to hold him again, just like old times.

She had waited...and waited.

The hours stretched on.

But he didn’t come.

And exhaustion from the long journey finally pulled her under, and she drifted off, dreaming of childhood warmth.

Then the mattress dipped.

Even half-asleep, she knew it was him instantly—his familiar, comforting scent wrapping around her like a blanket. That warm aroma that belonged only to Cassius.

Her heart fluttered with sleepy joy.

She stirred, ready to turn and whisper a happy greeting—

—when suddenly strong arms seized her from behind.

One hand clamped firmly over her mouth.

The other locked around her waist, pulling her back hard against a very male, very aroused body.

Panic exploded through her.

Before she could process, before she could even gasp his name, hot breath brushed her ear and a low, husky voice growled:

"Shhh, settle down, Isabelle..."

Isabelle.

He thought she was Isabelle.

Aqua’s eyes flew wide in the darkness, heart hammering against her ribs.

This wasn’t a childhood cuddle.

This was something entirely different—something intimate, adult, forbidden.

She tried to speak, to tell him No, Cassius, it’s me—it’s Aqua—your sister!

But his palm muffled every sound into pathetic little squeaks.

And then...it got worse.

Far worse.

His voice turned sultry, filthy—words she had never imagined coming from her sweet, shy little brother.

Words about her body, about what he wanted to do to Isabelle, about how wet and desperate and obedient she was.

She couldn’t believe that her own little brother was saying such things.

The Cassius she remembered was a shy, delicate boy who could barely hold her gaze without blushing crimson and looking away.

He used to hide behind her skirts when strangers approached, stammering whenever she teased him even gently.

The thought of him speaking about devouring a woman’s body, about how wet and obedient she was, would have been unimaginable.

Yet here he was, voice low and sultry against her ear, every filthy word dripping with raw passion and possession.

And to her utter, humiliating disbelief, her body was reacting.

Even though the words weren’t meant for her, even though they were whispered to someone else, the sheer love and hunger in his tone sent heat blooming across her skin.

Her heart raced. Her breath came shallow.

A traitorous warmth pooled low in her belly simply from the sound of him, from feeling that intensity directed at the body pressed against him.

’No...this is wrong. He’s your brother. Stop this. Stop feeling this.’

But her body refused to listen.

Then it became so much worse.

His hands began to move.

At first they only traced over her belly, warm palm sliding across soft skin. She wanted to cry out,

’Cassius, stop it! Don’t touch your sister’s stomach like that—I’ve been eating too many sweets lately, it’s embarrassing, please don’t play with it!’

She had always been a little self-conscious about the gentle roundness there, the way it wasn’t as flat as it used to be. She wanted to swat his hand away.

But before she could gather the strength, his touch drifted higher.

To her horror, his large hand cupped one heavy breast through the thin lace of her bra, fingers sinking into the soft flesh, kneading gently but possessively.

He didn’t expose her, didn’t pull the fabric away, but the pressure alone—thumb brushing the edge of her cleavage, fingers molding her like he had every right—sent lightning through her nerves.

Her legs trembled.

Her nipples hardened instantly, straining against the lace in helpless betrayal.

Her mind screamed in panic.

’That’s your brother groping you! Your little brother’s hand is on your breast! This is wrong, this is so wrong!’

But her body only arched faintly into the touch, weak and trembling, as though it had been waiting years to be held this way.

Humiliation also burned through her because of her inexperience.

She was turning thirty soon—a mature, accomplished mage, respected across the kingdom.

And yet she was completely innocent when it came to intimacy.

No lovers. No stolen kisses. Nothing.

She had poured every ounce of her youth into mastering magic, into earning the right to return home, to see Cassius again.

Romance had never mattered.

So now, the first time anyone had ever touched her like this—it was actually her own brother.

And her body was responding with shameful eagerness—nipples aching, skin flushed, a throbbing heat building between her thighs.

She begged silently for him to stop.

But he didn’t.

Instead, his hand slid lower.

Lower.

Until his fingers brushed the most private place no brother should ever touch.

Horror flooded her.

’T-This is taboo. This is beyond wrong. We share blood. We’re family.’

’I only wanted a cuddle, a hug, the warmth we used to share as children. Not this. Never this!’

And the worst part—the part that shattered her—was realising that she was wet.

Shockingly, shamefully wet.

She hadn’t wanted to believe it until his fingers slid inside and the lewd, slick sounds filled the quiet room. Until she felt the evidence coating his hand, her thighs, the sheets.

Her own body had betrayed her completely.

She had become aroused—deeply, helplessly aroused for her little brother.

They shared blood.

They had the same family name.

Every moral line in existence screamed that this was unforgivable.

Yet the more she fought, the more her body surrendered.

The more he touched, the more she burned.

And when the pleasure finally crested—when he pushed her relentlessly over the edge with those sinful fingers and that devastating voice—she broke.

She came harder than she had ever imagined possible.

Her body convulsed, squirting in forceful, humiliating waves that drenched everything.

In that moment of blinding ecstasy, her mind emptied of everything except sensation...and him.

And when the aftershocks finally faded, when she lay panting and trembling, breasts heaving, thighs slick, mind fractured, a storm of thoughts crashed through her.

’We crossed a line we can never uncross.’

’This is forbidden. Sinful. Wrong in every way.’

’I should be furious. I should scold him. Punish him. Make him kneel and apologize like any proper older sister would.’

’I should hate him for this.’

’I should hate myself.’

But then the light flicked on.

And she saw his face.

Pale.

Eyes wide with pure, visceral horror.

Every trace of arrogance or lust gone—replaced by the same vulnerable, frightened little boy she had protected all those years ago.

The boy who had always been so sensitive, so considerate, so terrified of disappointing her.

The brother who had followed her every word like law because he never wanted to make his big sister angry.

In that instant, every vengeful, scolding, punishing thought vanished.

All she saw was Cassius—her precious, panicked little brother looking like he was about to shatter.

And the only fear that gripped her heart now was that he would push her away.

That he would realize how wrong this was and retreat from her forever.

She had only just come home.

She had only just gotten him back.

There was no way—no way—she would let this moment drive a wedge between them.

Even if her legs were still weak, even if her body still trembled with aftershocks, even if she was flushed and exposed and humiliated...

Aqua gathered every ounce of strength she had left.

Slowly, shakily, she crawled across the bed toward him.

Cassius was frozen, staring at her in shock.

Before he could pull away, before he could speak, she reached out and gently—oh so gently—pulled him into her arms.

She wrapped him in the same warm, protective embrace she had given him as children.

Held him close.

Pressed his head to her shoulder.

And in the softest, most soothing voice she could manage, the same voice that had calmed his nightmares years ago, she whispered,

"Shh...it’s alright, Cassius. It’s alright."

Her hand stroked his hair tenderly.

"There’s no need to worry. Not at all."

She rocked him slightly, the way she used to when he was small.

"Big sis is here. Big sis has got you."

Her voice trembled, but the love in it was steady, unwavering.

"No matter what thoughts are in your head right now...just push them away. It’s okay. Everything is okay."

She pressed a soft, sisterly kiss to his temple.

"I love you, Cassius. Always. Nothing will ever change that."