Dean Winchester was exhausted.
Swigging the near-empty bottle of beer beside him, he flipped open his phone for the time: 1:03 am.
How had he been awake for so long? Sam had crashed hours ago. Dean could hear him breathing from the bed.
Dean downed the rest of the beer in one gulp and yawned. He rose from his chair, rubbing his eyes, and headed for the unoccupied.
Another case, another state. Another filthy motel room. As far as Dean could tell, they were somewhere in Michigan, hunting down a vampire nest. He shrugged off his leather jacket and laid down on the bed with dirty white sheets. He closed his eyes and was just about to fall asleep until -
"Dean?"
Dean's eyes opened a fraction. He recognized the deep, throaty voice of Castiel. He tried calling out, but the words wouldn't leave his tongue.
Footsteps sounded from the foot of his bed. Dean felt Cas's eyes on him, watching him "sleep".
Slowly, he felt the mattress descend on one side as Cas's warm torso pressed into his back. An arm gently curved around Dean's waist. Cas's slender fingers laced themselves in between Dean's under the pillow.
"Dean," Cas said. The word was a single breath of air from Cas's lips. Dean wanted nothing more to roll over and kiss him right there. "Cas?" he said instead.
"Oh," said the angel. "You were awake. I'm sorry." Dean felt the warm body pressed to his back draw away.
"Cas, wait." He rolled over and stared into Castiel's eyes. They were bright blue and wide open, vulnerable. Dean gently put a hand on Cas's cheek, a thumb brushing over his cheekbone. He leaned forward, slowly, and pecked him on the lips - just once, gently. Cas made a small noise in his throat and pulled Dean forward, kissing him again, more urgently.
"Cas," said Dean against the other man's mouth. "Stay. Please."
Dean felt Cas's lips curl into a smile. "Yes."
He fell asleep with Cas's arm draped over his waist and their fingers intertwined. It'd been the best sleep he'd had in weeks.
