THE LETHAL CURVE

CHAPTER THREE: HIGH VISCOSITY

By midnight, the Sterling Science Pavilion was dead silent.

The sprawling marble corridors that hummed with chaotic student energy during the day were now stripped down to shadow and the low, constant hum of the central air ventilation. Most students had long since fled to their dorms or the local bars.

Only the third-floor cellular oncology research lab remained illuminated—a solitary box of harsh fluorescent light against the pitch-black glass of the courtyard windows.

I leaned over the stainless-steel workspace, adjusting the fine-focus knob of the inverted fluorescence microscope. My dark hair was swept up into a clip at the back of my head, a few loose strands framing my face. I had traded my tailored blazer for a stark white lab coat, my sleeves pushed up to my elbows.

"The fluorescence intensity on the control slide is decaying by four percent every twelve minutes," I murmured, my eyes fixed on the illuminated cellular structure through the binocular eyepiece. "If the fluorophore photobleaches before we complete the baseline assay, the whole dataset is ruined."

"Then stop staring at the control slide and let me inject the inhibitor," a deep, gravelly voice rumbled from directly behind my left shoulder.

I didn't need to look up to know Damon was standing entirely too close.

He had shed his dark coat hours ago. Now, clad in a crisp lab coat over his dark grey fitted shirt, he looked infuriatingly composed for a man who had been running statistical models since seven in the evening. His broad frame blocked out half the overhead light, casting a long shadow over my workstation.

"I’m validating the baseline, Mercer," I said smoothly, keeping my tone clipped as I adjusted the stage clip by a fraction of a millimeter. "Which is something you’d know if you actually read the protocol guidelines I left on your desk."

"I read your protocol, Vance," Damon growled softly. He leaned over the table, resting one hand on the edge of my stainless-steel desk and the other on the back of my chair, effectively boxing me in between his arms. His warm breath brushed the shell of my ear, carrying that intoxicating scent of cedarwood and cold night air. "Your methodology is overly conservative. You’re accounting for a ten percent margin of error that doesn't exist if the pipetting is precise."

My hand froze on the microscope stage.

I turned my head sharply to look up at him. Because of how closely he was leaning over me, my lips were less than four inches from the strong line of his jaw. I could see the subtle dark stubble shadowing his skin, the intense, dark amber flecks in his dark brown eyes, and the quiet, calculating focus that made him so utterly dangerous.

"My pipetting is flawless," I said, my voice dropping an octave as I met his stare head-on. "I don't leave room for error. That’s why my name is at the top of the board."

"Correction," Damon purred, his eyes dropping to my mouth before slowly dragging back up to meet my gaze. "Our names are at the top of the board. Equal. Tied. Unbroken."

"Not for long," I whispered.

A slow, lethal smirk carved into Damon’s sharp cheekbones. Slowly, deliberately, he reached out with his free hand. His long, calloused fingers wrapped around my hand—the one resting on the microscope's fine-focus dial.

His skin was burning warm against mine. His palm was large, rough, and completely authoritative, completely overwhelming my smaller hand.

A sharp, electric jolt shot straight up my arm, settling like a heavy coil in the pit of my stomach. My breath hitched in my throat, my pulse suddenly thumping against my ribs so loudly I was certain he could hear it over the hum of the centrifuges.

"What are you doing?" I asked, trying to keep my voice steady, though it came out rasps-thin.

"Showing you," Damon growled out, his deep voice carrying a rough, smoky warmth that vibrated against my skin.

He didn't let go of my hand. Instead, his fingers tightened gently around mine, guiding my grip on the dial with effortless control. He nudged the focus knob counter-clockwise by less than two degrees.

"Look through the lens, Elena," he commanded softly against my ear.

I forced myself to lean back down to the microscope eye-tubes, my body stiff, every nerve ending hyper-aware of his broad chest pressed almost flush against my back, his hand holding mine over the metal dial.

Through the lens, the hazy green glow of the cellular membrane snapped into blinding, absolute clarity. Every protein cluster, every organelle boundary was rendered in terrifying, crystalline detail.

"See?" Damon murmured, his lips practically grazing the curve of my neck above my lab coat collar. "You were focusing on the background noise. I focus on the target."

My chest heaved as I pulled back from the eyepieces, turning in my chair to face him. His hand slipped from mine, but he didn't back away an inch. He stood between my spread knees, his hands resting on the stainless steel counter on either side of me, trapping me in his space.

"You think you know everything, don't you?" I breathed, my chin lifting in defiance despite the crazy, chaotic heat building between us.

"I know you've been holding your breath since I touched your hand," Damon rasped, his dark eyes darkening into something thick, heavy, and possessive. His gaze tracked down to my collarbone where my pulse was visibly hammering against my skin. "I know you hate that I can fix your protocol in two seconds. And I know you hate that your brother put me in the room right across from yours."

"I don't hate it," I lied, my voice tight. "I tolerate it. Because after this semester, when I get the Hayes fellowship, you'll just be a footnote in my medical school application."

Damon let out a low, rough laugh—a sound that was pure dark silk.

He leaned down further, his towering six-foot-two frame crowding me until I had to lean back against the metal microscope stand. He reached up, his long fingers cupping the side of my neck, his thumb resting lightly right over my racing carotid pulse. His touch was warm, firm, and overwhelmingly possessive.

"Lie to me again, Elena," he growled low against my lips. "Tell me you don't feel this. Tell me I'm just a footnote."

My heart felt like it was going to burst out of my ribs. The lab felt completely airless, stripped down to nothing but the smell of him and the dangerous, intoxicating pull drawing us together. For three years, we had channeled all this explosive energy into test scores and grading curves. But standing here, in the middle of the night, isolated from the rest of the world, the thin wall between hatred and absolute desire was crumbling to dust.

"Damon..." I whispered, his name slipping past my lips before I could stop it.

His thumb smoothed over my jawline, his dark eyes burning into mine with an unyielding intensity. "Say it."

Before I could answer, the heavy electronic keypad on the outer lab door beeped loudly, followed by the metallic click of the deadbolt sliding back.

The door swung open.

"Hey! You guys still in here?"

Leo’s cheerful voice boomed across the sterile room, instantly shattering the suffocating aura like glass breaking on stone.

In a fraction of a second, I pushed against Damon's chest, straightening my lab coat as Damon smoothly stepped back, unhurried, pulling his hands into his coat pockets as if he had simply been reading a data sheet over my shoulder.

Leo walked down the main aisle between the black-topped lab benches, carrying two large paper cups from the late-night campus coffee shop. He was wearing his gray Harkness hoodie and sweatpants, completely oblivious to the fact that he had just interrupted a nuclear detonation.

"I saw the light on from the parking lot," Leo said, setting the coffee cups down on a clean side table away from the chemical reagents. "It's twelve-thirty in the morning, guys. Don't tell me you're actually pulling an all-nighter on day one?"

"Your sister was having trouble with her focus parameters," Damon said smoothly, his deep voice entirely composed, though his dark eyes remained locked on me with a quiet, lethal promise. "I was helping her dial it in."

Leo chuckled, shaking his head as he handed me one of the warm cups. "El, let the man help you. You don't have to carry the whole project on your shoulders."

I took the cup, my fingers still trembling slightly from the residual adrenaline. "I wasn't having trouble, Leo. We were just finalizing the baseline."

"Right, right," Leo said with a yawn. "Well, I'm heading back to the house. You two coming, or are you going to move a cot into the server room?"

Damon glanced at me, a dark, wicked smirk playing on his sharp lips.

"We're coming," Damon said softly, his gaze dropping to my lips one last time before he turned to grab his backpack. "We've done enough damage in the lab for one night. Time to take the work home."