In Love With My Stepbrother

Chapter 3: Shadows of Desire

I didn't lock the door.

Not because I was brave, but because I refused to give Kai the satisfaction of knowing he scared me.

After changing out of the emerald gown into a silk camisole and shorts, I spent two hours pacing the floor of my massive bedroom in the west wing of the mansion. My skin still felt sensitized, hyper-aware of every brush of fabric against the spots where Kai’s calloused fingers had touched me.

"He's playing mind games," I muttered to myself, staring out the window at the dark estate grounds below. "He just wants control."

Mainstream society knew Kai King as the undisputed star athlete and future heir to a multi-billion-dollar sports empire. But the underworld knew the truth: Kai was the enforcer of the city, a man who ruled the street racing circuits and illegal fight rings with an iron fist. My mother had married his father for security, but in doing so, she had thrown me straight into the lion's den.

Unable to sleep, I slipped out of my room and headed toward the ground floor. The mansion was dead silent at 2:00 AM, the long corridors bathed in pale moonlight.

I made my way down to the private training facility in the basement—a state-of-the-art gym equipped with heavy bags, ring mats, and private sparring cages. Boxing was the only thing that cleared my mind, the only place where I felt in control of my own body.

I wrapped my hands in dark cloth, stepped up to the heavy leather bag, and began to strike.

Jab. Cross. Hook.

The rhythmic thud-thud-thud of my fists striking the leather echoed through the empty gym. Sweat broke out across my collarbones, slicking my skin as I poured all my frustration, my anger, and that confusing, forbidden heat into every punch.

Jab. Cross. Slip. Upper-cut.

"Your guard is too low on the left."

I froze mid-strike, my chest heaving as I whipped around.

Kai stood in the doorway of the dimly lit gym. He had discarded his shirt, wearing only black training pants that hung low on his hips, exposing the sharp V-line of his waist and the powerful, sculpted muscles of his back and chest. Dark ink covered his right arm and swept across his ribs—tattoos depicting a wolf hunting in a forest of thorns.

My breath caught in my throat. Seeing him like this, stripped of his expensive suits and elite mask, made him look entirely feral.

"What are you doing down here?" I panted, wiping sweat from my forehead with the back of my wrapped forearm.

"I could ask you the same thing," Kai said, walking slowly onto the black mat. His bare feet made no sound. "It's two in the morning, Sienna. Normal girls are sleeping."

"I'm not a normal girl," I snapped, raising my wrapped hands into a defensive guard. "And I don't need your coaching."

"Your form is sloppy," he said casually, stopping a few feet away. "You're throwing your weight forward. A real opponent would catch you on the counter and drop you in two seconds."

"Try me," I dared, the adrenaline in my blood overriding my common sense.

A slow, dangerous smile spread across Kai’s face. "Is that a challenge, little sister?"

"I said, try me."

Without warning, Kai lunged forward.

His movement was impossibly fast, but my months of underground conditioning kicked in. I ducked beneath his long arm, spinning to his flank, and drove a sharp palm strike toward his ribs.

Kai caught my hand inches before impact. His grip was an iron cuff around my wrapped wrist. He pulled me forward, using my own momentum against me, and swept my leg out.

I gasped as I lost my balance, falling backward onto the soft mat. But before I could hit the ground hard, Kai’s arm wrapped securely around my waist, catching me and cushioning my fall as he landed heavily on top of me.

The impact knocked the air from my lungs.

When my eyes opened, Kai was hovering directly above me, his broad chest resting against mine, his heavy thighs pinning mine to the mat. We were completely tangled together, our sweaty skin pressing against each other in the dim light of the gym.

"Rule number one of fighting," Kai growled, his deep voice heavy with exertion, his hot breath fanning across my wet lips. "Never let your emotions dictate your moves."

"Get off me," I choked out, but my body refused to push him away. The feeling of his muscular weight pressing me down into the mat sent a sudden, searing wave of heat straight to my core.

Kai didn't move. Instead, he leaned down further, pressing his body even closer until there wasn't a single millimeter of space between us. I could feel the hard ridge of his chest, the heavy, fast beat of his heart, and the dangerous pulse of power radiating off him.

His eyes burned down into mine, dropping slowly to my chest heaving beneath my thin silk camisole.

"You're trembling, Sienna," he murmured, his voice lowering into a gravelly whisper that vibrated against my skin. His hand left my wrist and slowly slid up my arm, his calloused thumb lightly dragging across the sensitive skin of my inner elbow.

"I'm... I'm tired," I lied, my voice betraying the intense, unspoken hunger pooling in the air.

"Liar," Kai whispered softly. He reached out, his long fingers trailing up the side of my neck, his thumb coming to rest right over my racing pulse point. He applied just enough pressure to make my eyes flutter shut. "Your body doesn't lie to me. It never has."

He lowered his head until his lips were a fraction of an inch away from mine. I could feel the intense heat of his mouth, the unspoken command hanging between us. My heart slammed against my ribs so hard it was deafening. Every nerve ending in my body screamed for him to close the distance, to break the final barrier.

"Kai..." I whispered, uncertain if I was pleading with him to stop, or begging him to kiss me.

Kai’s grip on my waist tightened, his fingers digging into my skin with possessive force.

"Say my name again," he growled darkly, his lips lightly brushing against mine—just enough to give me a agonizing taste of him without actually giving me the kiss. "Say it."

Before I could speak, the high-pitched chime of an emergency alarm suddenly rang out through the mansion, blaring from the intercom system above.

BEEP! BEEP! BEEP!

The red emergency lights in the gym began to flash, cutting through the darkness and bathing our tangled bodies in harsh crimson light.

Kai froze. The hypnotic spell instantly shattered, replaced by the sharp, deadly instinct of a boss under attack. He pushed himself off me in one smooth movement, standing tall and offering me a hand.

I stared at his outstretched hand, my chest still heaving, my lips tingling from the proximity. I ignored his hand and pushed myself up on my own, my heart hammering for a completely different reason now.

"What is that?" I asked, wiping the sweat from my neck.

"Perimeter breach at the east gate," Kai said, his face hardening into an expression of pure, unadulterated coldness. He walked over to a metal cabinet on the wall, punching in a code, and pulled out a sleek black handgun, racking the slide with a sharp clack.

He turned back to look at me, his eyes dark as midnight under the flashing red lights.

"The West family thinks they can strike back," Kai said softly, his voice dropping into a lethal whisper. "Stay in this gym, Sienna. Don't move."

"Kai, wait—"

"If anyone other than me walks through that door..." Kai stepped closer, placing the cold steel of a small dagger into my wrapped hand, his fingers lingering over mine one last time. "...you cut their throat."