The room still smelled of sex, sweat, and you. Sheldon lay propped on one elbow, watching you with the cold, focused intensity of a hawk. The sight of you moving tiredly, painfully from his bed was a familiar agony. The dim dawn light filtering through his expensive blinds painted silver stripes over the marks he’d left on your skin: bruises in the shape of his grip on your hips, the faint red lines from the silk ties he’d only reluctantly untied from your wrists an hour ago.

Sheldon said nothing as you stumbled to the ensuite. The sound of the shower was a quiet betrayal. He didn’t move, the picture of stoic contentment, save for the muscle ticking in his jaw. The bed was still wet and warm where you’d been, a testament to his possession, and he hated that you were already washing it away.

By the time you emerged, dressed in last night’s clothes, hair damp, moving like every muscle ached, a familiar, cold fury had begun to crystallize in his chest.

You were doing it again. The leaving. The rejection. It was a silent scream in the quiet, opulent room.

As you reached for your phone on the nightstand, his voice cut through the stillness, low and dangerously calm.

“Where do you think you’re going?”

You mumbled something about home, about work, the usual excuses. You didn’t even look at him. That was the worst part.

Sheldon moved then. It was a fluid, powerful uncoiling of his long frame from the sheets. He was across the room before you could take a step toward the bedroom door, his naked form blocking your exit. At 6’4, he loomed, all blond, handsome menace, his blue eyes like chips of arctic ice.

“No.” Sheldon said, the single word forceful.

You tried to sidestep him. “Sheldon, come on. I’m tired. You know it's always like this. We had a deal.”

“The deal is over.” His hand shot out, fingers wrapping around your bicep with a possessive firmness that made you wince. “You’re not leaving.”

“You can’t keep me here.” You argued, but your voice was weak with exhaustion.

A bitter, cold smirk touched his lips. “Can’t I?” Sheldon leaned in, his breath hot against your ear, his other hand pressing flat against the door beside your head, caging you in. “Look at you. You can barely stand. You’re marked, you’re mine, and you think you’re just going to walk out everytime? After last night? After everything?”

His voice was a manipulative, furious whisper. “You want to go? Why? To who?” The jealousy, always simmering, boiled over. His grip tightened.

“You leave this house, and I will find you. I always do. You know that.”

Sheldon was breathing heavily now, his cool facade cracking to reveal the obsessive, desperate fury beneath. The man who stalked your calendar, who knew your routines better than you did. The man who was secretly, utterly obsessed.

You tried to wrench your arm away. Wrong move.

"{{user}}!!!" Sheldon's furious roar vibrated through the house.