For a prompt how about some sam doting on cas and telling him all the thing he loves about him just to see cas blush
(Oh gosh, so much fluff - hope you enjoy, cutie <3)
“Do you know what I love most about you, darling?” Sam asked Cas quietly, running a hand through Cas’ hair as he did so.
They were sitting, cross-legged and across from each other, on Sam’s bed. Cas, still slightly disgruntled that Sam had broken off a particularly heavenly (he would know) kiss to ask this question, shook his head slightly, not sure how to respond.
“It’s your lips,” Sam said, running a hand over them as Cas sat still, merely watching the human and relishing the feeling of Sam’s fingers on his skin. “All the beautiful words you say with them, all the laughs they make - and how wonderful they are to kiss.”
Cas felt his cheeks begin to get warm.
“Or maybe it’s your hands,” Sam said, running his own hands from Cas’ lips and hair down to the angel’s, which Sam drew out of Cas’ lap and began to kiss. “The way you use them with so much care, and so much wisdom. The way their simple touch can make my heart beat faster.”
Speaking of hearts, Cas’ was speeding up noticeably at this point.
“Or maybe… maybe it’s your eyes,” Sam said slowly, thoughtfully, placing a hand on either side of Cas’ face and staring deeply into the his eyes, so deeply that Cas would have looked away if Sam’s hands caressing his cheeks hadn’t felt so amazing. “Eyes that I’ve seen reflect so many feelings - happiness, anger, joy, sorrow… love.”
Cas knew that if Sam didn’t stop complimenting him, sooner or later he was going to -
“No, no. I know what it is I love most about you,” Sam said after a few moments of silence. He withdrew his hands from Cas and just looked at the being he had grown to love so much. Cas tried to stop himself from turning pink, but his efforts were in vain.
“I - I love all of you equally, Cas,” Sam finally declared, smiling at Cas radiantly. “Though, I suppose the thing that most represents all of you is your soul - and that I would have to love that the most.”
Cas couldn’t take it anymore. He blushed a bright shade of red, let his head fall into Sam’s chest, and clung onto Sam tightly.
Sam laughed at his flush-faced, flustered boyfriend whose head was currently buried in his shirt and hugged Cas back, kissing the top of Cas’ head tenderly as he did so.
“I love you, angel.”
“Stop it, Sam, or my face is going to look like this forever,” Cas mumbled, his face still pressed against Sam’s chest.
“Not a chance, Cas. Not a chance.”