Seducing My Sister's Husband after Betrayal

I needed proof. Not just what I'd overheard, but tangible evidence that would expose their plot. As the family dinner at my parents' estate dragged on, I watched Aiden and Lucia like a hawk, noting every glance, every "accidental" brush of fingers when passing the salt.

My mother droned on about her latest charity function while my father nodded absently, more interested in his bourbon than the conversation. Neither noticed the silent drama unfolding at their own dinner table—their daughters locked in a deadly game, one plotting murder, the other plotting revenge.

"Aiden, darling," I said sweetly, reaching for my phone. "I forgot to show you those designs for the garden renovation." I pulled up my contacts and deliberately called his number.

On cue, his phone rang. He patted his pockets with a practiced frown. "Excuse me, I should take this. Might be the Tokyo office."

Lucia waited exactly forty-seven seconds—I counted—before setting down her napkin. "I need to take my medication," she announced, her voice perfectly calibrated to sound weak but not alarming.

I watched them both leave in different directions, then silently slipped from my chair. "Just going to powder my nose," I murmured to my oblivious parents.

Instead of heading to the bathroom, I followed the sound of hushed voices to the east wing of the mansion. Pressing myself against the wall, I strained to hear their conversation.

"It's happening too slowly," Lucia whispered urgently. "Dr. Vale says my left ventricle is deteriorating faster than expected."

"I can't increase the dosage without raising suspicion," Aiden replied, his voice low and intense. "Elena already watches me like a hawk whenever I'm in the kitchen."

"Then find another way," Lucia hissed. "I don't have time for caution."

I pulled out my phone and pressed record, holding my breath as their voices continued.

"Vale says there's a private clinic in Switzerland that can handle the procedure," Aiden said. "Once Sophia's... gone, we fly there immediately. With your family connections and my money, no one will ask questions."

"And after?"

"After, we wait an appropriate time. I mourn my beloved wife, you recover miraculously with your new heart, and eventually..."

"We can finally be together," Lucia finished, her voice softening with longing.

I'd heard enough. Backing away silently, I composed myself before returning to the dining room. When Aiden and Lucia returned minutes apart, I greeted them with a smile that didn't reach my eyes.

"Everything okay, darling?" I asked Aiden, touching his arm possessively.

"Just work," he replied smoothly, covering my hand with his. The same hand that measured out poison for my tea each morning.

After dinner, I excused myself, claiming a headache. "Don't worry about me," I told Aiden when he made a show of concern. "Stay and catch up with my parents. I'll take a cab home."

Instead of going home, I drove to Vale Medical Center. If Dr. Vale was involved in their scheme, I needed to know exactly what I was facing. The night receptionist recognized me from my charity work with the hospital.

"Mrs. Prescott! What brings you here so late?"

"I was hoping to speak with Dr. Vale about a donation for the cardiac wing," I lied smoothly. "Is he still here?"

"Just missed him, I'm afraid. But Nurse Collins might know when he'll be back—she's handling Ms. Sterling's case preparations."

I found Nurse Collins at the nurses' station, reviewing charts. She looked up with a tired smile when I approached.

"Mrs. Prescott, what a surprise."

"Just checking on my sister's treatment plan," I said casually. "She mentioned something about new developments?"

The nurse glanced around before leaning closer. "We're on standby for an urgent transplant. Dr. Vale has everything prepared—surgical team, anti-rejection protocols, the works. Just waiting for a suitable donor."

I pressed record on my phone in my pocket. "That sounds serious. How urgent are we talking?"

"Between us?" She lowered her voice further. "Without a new heart in the next two months, your sister's chances aren't good. Dr. Vale is prioritizing her case, though. Says he's never seen such a perfect potential match before."

My blood ran cold. "A match has been identified?"

"That's the impression I got. He's been coordinating with Mr. Prescott directly, very hush-hush. I probably shouldn't be saying anything..."

"Of course not," I assured her, my voice steady despite the rage building inside me. "I appreciate your discretion."

Back in my car, I played the recordings, each word confirming what I already knew. My husband and sister weren't just having an affair—they were actively planning my murder, with medical professionals either complicit or unwittingly involved.

I drove home in a daze, my mind racing through possibilities. I could go to the police, but with what proof? Recordings of vague conversations? Hearsay from a nurse? Against the Sterling family name and Aiden's corporate influence, I'd be painted as a paranoid, jealous wife.

No, I needed leverage. I needed to destroy their plan from within. And I knew exactly who could help me do it.

Caleb Whitmore—Lucia's wealthy, neglected husband. The man who'd married my sister in a loveless arrangement, who looked at me with barely concealed desire at every family function.

At home, I went straight to my closet, pushing past the conservative dresses Aiden preferred. At the back, still in its garment bag, hung a black lace gown I'd bought on impulse months ago—dangerously low-cut, with a slit that climbed almost indecently up my thigh. Aiden had deemed it "inappropriate" and insisted I return it. I never did.

Beside it sat a shoebox containing stiletto heels that added four inches to my height and transformed my posture from demure to demanding.

As I held the dress against my body, staring at my reflection in the mirror, I barely recognized the woman looking back at me. Her eyes were harder, calculating. Her lips curved in a smile that promised both pleasure and pain.

If Aiden and Lucia wanted to play with hearts, I would show them how it's really done. Starting with Caleb Whitmore's.

After all, revenge, like seduction, is an art best practiced with precision.

And I was about to become a master of both.