The laboratory air hums with tension thicker than the chemical fumes. Dingjie stands with his back to you, broad shoulders flexing as he adjusts the burner flame. You've been waiting for over an hour, your notebook forgotten on the lab table as heat pools between your legs.

He turns suddenly, his dark eyes锁定 (locking onto) yours like prey. "You've been watching me all afternoon," he states, not asks. "Tell me what you want, little assistant."

Your throat goes dry. "I-I need help with the spectrometry data, Professor."

He smirks, taking a slow step toward you, then another. The space between you shrinks until you can smell the dangerous mix of his cologne and chemicals. "Don't play dumb. You've been practically panting since I rolled up my sleeves."

Your back hits the cold lab wall before you realize he's moved. One large hand slams against the concrete beside your head while the other finds your jaw, fingers digging into your skin just hard enough to sting.

"Tell me the truth," he growls, his thigh forcing its way between yours. "Or I'll make you regret wasting my time."

Kaiser's low growl echoes from the corner, but Dingjie ignores him, his attention fixed solely on you. His thumb brushes your lower lip, pressing inside just enough to feel your tongue tremble against it.

"Answer me," he commands, his knee pressing upward against your core. "What do you want from me?"

Your breath catches as he grinds against you, his hardness evident even through his tailored pants. His scent overwhelms you - expensive leather, smoke, and something sharp and scientific that shouldn't be erotic but somehow is.

"Professor," you gasp, as his hand drops to your throat, applying just enough pressure to make your pulse race.

"That's not an answer," he says, leaning in until his lips brush your ear. "And you know how much I hate incomplete data."

The door creaks open and his brother steps inside, but Dingjie doesn't look away from you. "Get out," he snaps without turning.

"Come on, Jie, we have business with Rivers-"

"NOW!" Dingjie roars, slamming his fist against the wall beside your head. The sound makes you jump, and he smiles darkly at your reaction before returning his attention to you.

The door slams shut, leaving you alone with the predator in front of you. His hand moves to your hair, gripping it tightly and forcing your head back against the wall.

"Now where were we?" he purrs, his lips trailing down your neck. "Ah yes... you were about to beg for what you want."

Kaiser whines, sensing the tension rising in the room. Dingjie bites your neck hard enough to leave a mark and you cry out, your hands instinctively pushing against his chest.

He grabs your wrists in one hand, pinning them above your head with brutal efficiency. "Don't fight it," he whispers against your skin. "You've been wanting this since the first day you walked into my lab."

You can't deny the truth of his words, especially not when he presses his erection against you again, making your hips arch involuntarily.

"Dingjie..." you breathe, using his first name for the first time.

He freezes, his eyes darkening with something dangerous and possessive. "Say that again," he demands, his voice rough with desire.

Before you can respond, Kaiser suddenly barks, loud and insistent. Dingjie curse under his breath, releasing you abruptly.

"Stay here," he orders, fixing you with a glare that promises punishment if you disobey. "Don't move."

He strides toward the door, rolling his sleeves down as he goes, transforming from predator back to professor in the space of a heartbeat. You hear him speaking sharply to someone in the hallway, but your mind is still reeling from what just happened - and from the aching need between your legs that he so cruelly abandoned.

When he returns moments later, his expression is unreadable. "Someone was watching us," he says quietly, moving closer again. "Tell me... was that your plan all along, little mouse?"

His hand wraps around your throat once more, not tight enough to hurt but enough to remind you exactly who's in control.

"To get me worked up where anyone could see?"

You shake your head, but he just smiles, knowing you're lying. The truth is you don't care who sees - you just want him to finish what he started.

"You're playing with fire," he warns, his lips inches from yours. "And we both know what happens to things that burn too close to me."

His mouth crashes against yours, hard and demanding, as if he's trying to devour you whole. You moan into the kiss, your hands finding his hair as Kaiser watches silently from his corner - a witness to the dangerous game unfolding between you.