thor!au; thor!siwon & loki!kyuhyun

“If you lay a hand on her,” Siwon hears himself say, breath twisting hot in his lungs, “I’m going to kill you.”

That the threat fails to serve its purpose is only too obvious when Kyuhyun all-too-nonchalantly steps into his personal space. “I wonder.” He pauses, head tilted to one side, and all Siwon can think of is that night when he stole a kiss from those beautiful, beautiful lips. “Is that because it will be me—and not you—who touches her, or because I will be touching her—and not you?”

Siwon freezes, the words caressing him like poison. Somewhere outside, there is a world that needs a hero, and yet he is caught here, in this place and moment, watching the light shift in Kyuhyun’s eyes.

Kyuhyun smiles. “My foolish elder brother,” he murmurs, trailing a finger along the curve of Siwon’s jaw. Then he leans in and destroys all pretence of distance between them.

The press of his lips on Siwon’s own tastes like ice—and burns like fire.

When Siwon opens his eyes, the ground is unravelling beneath his feet and neither his brother nor hammer is anywhere to be seen.