i really love french fries though

“You’re kinda damn cute when you smile like that.” Dean remarked offhand as he picked at the last few French fries on his plate.
Cas, taken a little off guard by the forward compliment, swallowed down his latest bite of burger before mustering up his curiosity. “Like what?”
Shrugging, Dean met Cas’ eyes with a soft smile of his own. “Like you’re really happy. Not like… well, like when you think you should smile. I really love when you smile and it actually reaches your eyes.”
Something Cas, from spending his life as a celestial being, never thought would happen happened. His heart stuttered. He could feel it as though that stutter shook his entire being, his entire existence. “You gave me that smile, Dean.”
And that’s when Cas was greeted with his own favorite smile. The smile that curled Dean’s lips, dimples his face, wrinkled just the slightest around his eyes. That’s when the fallen angel knew that their love would last, not because of words spoken or kisses exchanged… but because they gave each other smiles that lightened the darkest parts of their souls.