"Stiles," Derek sighs, eyes remaining closed. "Go to sleep."
"I’m trying," Stiles says, pulse quickening.
"No, you’re not. You’re staring at me." He slowly opens his eyes then, meeting Stiles’ gaze in the dim darkness of the boy’s bedroom. Stiles smiles, feeling his heart flutter warm in his chest. Derek blinks. "What?"
Stiles inches closer, moving his arm to play with Derek’s hair rather than his own. Derek’s eyes flicker over his face, filled with wonder.
"You look adorable when you sleep," Stiles admits in a murmur.