Prompt I saw on a Facebook meme.. Would have posted picture but unsure how to on mobile.
Imagine you and Deanmon are fighting. He pushes you against a wall, kisses you roughly and then leaves. I changed you to Cas and imagined it from Cas's pov
Cas was left with a feeling of being light headed, he wasn't expecting Dean to do that, they had been fighting. Dean telling Cas to basically stay out of his way or he would reap the consequences. Cas had stood his ground, not wanting to give up on his best friend. Demon or not, Dean was still Dean and there wasn't a thing that Cas could do in order to stop the growing feelings he was already feeling towards him. It left an aching and burning feeling inside his chest, one that would not go away quickly.
It wasn't like he had ever expected it to be.. Not soft and loving, caring and slow, but it was rough and full of a passion that he couldn't even describe. It was a moment that had left him feeling breathless and like he wasn't able to stand on his own two feel. For whatever reason that was in Dean's mind, he had decided to shut Cas up the best way that he knew how, by kissing the Angel.
The way Dean's body felt leaning against his, the way he pushed him hard into the wall, his lips rough against his, nibbling and biting into his own were just about too much for Cas to bear. His heart pounding in his chest and groin seeking friction. Cas had wanted to pull Dean closer, relish in this feeling, kiss back and run his hands through that hair.
Before Cas had much of a chance to respond, Dean pulled away and started stalking away to his bedroom, leaving Cas feeling empty and light headed, Deamon Dean having left abruptly, not wanting to show Cas just how much the kiss had effected him too. Cas stood there, dazed for a few moments trying to comprehend what had just happened when Sam came around the corner, not aware of what had just transpired, "Uhh Cas, I think I found somet...", he trailed off as he looked up from his book to Cas, "Everything okay Cas?"
Cas finally got his sense of reality back and looked up at Sam and nodded. He was still feeling some effects of the kiss, but he was mostly back to his own regular self. "I'm fine Sam, I'm just tired I guess". With that, Sam patted his arm and said goodnight, his research could wait another night, especially when they were both overtired. Sam headed to his room and Cas to his own, Dean now pacing his bedroom, the demon having subsided in him for now, leaving human Dean to internally panic about demon Dean'sactions, the consequences and why he was still feeling the effects of one simple kiss..