“I know you’re awake. I can tell when you’re watching me.”
Dean opens his eye more than the crack he’d been sneaking his thousandth glance at Cas through.
“I can’t believe you’re driving my car,” Dean mutters sleepily. It’s nearing three a.m. and they’ve been on the road a long time. Sam’s been asleep in the back seat since eleven. Giving up and handing the wheel over to Cas and letting the guy who doesn’t sleep drive had seemed like a good idea.
Cas glances over and frowns at him before quickly looking back at the miles of empty, straight road stretching ahead of them, still driving like a dork, Dean thinks. “If you’re worried about me crashing the car, I won’t,” he says grumpily. “The next town is still at least two hours away, but I could wake Sam and let him drive.”
“’S not that,” Dean mutters, sinking lower in the passenger seat and shifting around to try and get comfortable, dancing on the edge of sleep. He closes his eyes again, hoping to trick himself into sleeping.
“Then what is it?” Cas asks, still sounding resentful about his driving being so closely monitored.
Dean cracks his eyelids apart before he can help himself, and stares across the front seat to Cas behind the wheel. It shouldn’t have been a big deal but it really is; watching Cas resolutely watching the empty road, both hands on the wheel, determined to bear them safely on their way with all his usual intensity, to the point of absurdity about how seriously he’s taking the task, and there’s just something about him being the one driving Dean’s car…
All drugged up with the kind of tiredness from hitting the road in a kind of driven-out-of-town-after-a hunt-way and then driving non-stop for twelve hours, followed by two more hours drifting right on the cusp of sleeping if not for watching Cas, Dean isn’t really paying much attention to his own mouth.
“S’ kinda hot.”
There’s one of the heaviest silences in his life as Dean slowly registers what he said and he jerks awake like he’d been slapped.
At least, he thinks somewhat hysterically as he meets a gaze boggling at him in shock, he finally made Cas take his eyes off the road for more than a second.