Serving My Don's Mistress Until I Got My Hundred Million

Chapter 1

4,107 words

"Cassius, I picked this lingerie out just for Gia. The bath is ready. Enjoy your night."

I handed the lace to my husband, Don Cassius, and his mistress, Gia.

Hearing her soft moans start before I even left the room, I shut the door.

Three months ago, I slapped Gia. As punishment, Cassius locked my father and brother in a private asylum.

Since that day, I swallowed my pride and became Gia's personal servant.

It wasn't until their bastard son turned a month old that I finally dropped to my knees, begging Cassius to let my family go.

But Cassius just laughed. His rough fingers gripped my jaw, hot and aggressive.

"Sienna, do you know how Gia ended up in my bed?"

My breath hitched. My nails dug into my palms.

"Your dear father and brother stripped her naked and offered her to me. A little peace offering."

"Sienna, she's your half-sister."

He smirked at my pale face and tossed his phone into my lap.

"They were never locked up. For three years, they've been living in luxury at my private estate."

On the screen, my father and brother were surrounding Gia and her baby, smiling brighter than they ever did with me.

Tears pricked my eyes. My chest felt hollowed out, bleeding and raw.

Cassius stroked my lower lip with his thumb, his voice full of arrogant control.

"Sienna, you've been such a good girl these past three years. Keep it up. Whatever you want as compensation, I'll give it to you."

"But..." He smiled, dangerously cocky. "You love me so much you'd die for me. What else could you possibly want?"

I tasted blood from biting my lip. I looked up and gave him a drop-dead gorgeous smile.

"Then give me a hundred million in cash."

I was done with this cruel mafia tyrant. Done with my toxic, fake family. I was out.

……

Cassius froze.

"What did you just say?"

I looked straight into his dark eyes, my voice shaking.

"You want to compensate me? Cash."

"One hundred million dollars. Not a penny less."

His eyes turned ice-cold.

He scoffed and barked at his phone on the desk. "Gia, looks like we both guessed wrong."

It was a video call.

Gia was holding the baby, smirking at me.

"Sienna, we were just betting on what you'd ask for when you found out the truth."

"I bet you'd go crazy and trash his office. Cassius bet you'd beg him never to divorce you."

"As for Dad and Julian," she giggled, "one guessed you'd want me exiled from New York. The other guessed you'd threaten to kill yourself."

She panned the camera.

My father, Arthur, was holding the baby, beaming. But when he saw me, his smile vanished.

"Sienna, I can't believe you'd ask Cassius for money!"

"Have we ever let you starve? You sound like a cheap whore who'd do anything for a dollar!"

My brother, Julian, patted Gia's head gently. But when he looked at the camera, his eyes were freezing cold.

"Sienna, I know you're upset."

"If you need cash, I'll give it to you. But don't ask Cassius."

"He and Gia are in love. They owe you nothing."

"Oh, really?"

I interrupted, my voice hoarse.

"You stole my husband. Stole my dad and brother. Ruined my marriage and my place in the Cartel."

"You played me for three years, treated me like a dog, and made me a free nanny for her brat."

"And you owe me nothing?"

Julian frowned impatiently.

"Sienna, don't be so bitter."

"We didn't mean to lie, but you're so stubborn. How else would you accept Gia?"

"She had postpartum depression, so we made this bet to cheer her up. Don't take it personally."

I gave a cold, empty smile.

"In that case, pay up."

"Dad gives me fifty million. Julian gives me thirty million. I'll keep playing the good wife and be Gia's obedient little dog. Deal?"

Julian turned pale with rage. "Sienna, when are you going to stop this nonsense!"

I sneered.

"It's chump change. Don't tell me the almighty Cassius Family can't afford it."

"Enough."

Cassius glared at me and tossed a file from his drawer.

"Since you love money so much, take it. Gia gave me an heir. My son will not be a bastard. Sign these divorce papers, and the hundred million is yours."

I looked at those thin pages.

Without hesitating, I grabbed a pen and signed my name.