So this is just a drabbleyish thing. My first shot at romance, so yeah. Tell me what you think?

"Dean." Dean spun around quickly, knife ready. But it was only Cas.
"Cas?" He asked. "What are you doing here?" Cas looked tired, worn, had several knife wounds on his face and body, and blood all over his trench coat. He had obviously been fighting, and with angels too since he hadn't healed the wounds.
"Dean… I need to speak to you. Alone." Cas shot a glance at Sam who raised his eyebrows but then shrugged and left the room.
"Cas. What's going on?" Dean asked worriedly.
"Dean. It's bad. In Heaven. Really bad. And… they needed my help, and I've been fighting, and…" Cas trailed off, seemingly unable to finish his sentence.
"Cas? Hey, buddy, you still with us?" Cas frowned.
"Of course I'm 'with you' Dean. I haven't moved." Dean sighed. Typical Castiel, completely clueless as usual. "Dean, you have no idea what it's like. There is so much blood and carnage, like even the oldest angels can barely recall ever before. Many have been killed." Castiel looked down at the ground and back up at Dean. "They need me to help, Dean."
"So? Cas, you are a great heavenly fighter, I'm sure, and it's not like you're at massive risk, right?" Dean had to be very careful not to let his voice break towards the end. Truth be told, one of his worst fears was Cas dying. Because he was his friend, his saviour, and he l- was family.
"Well, that's why I'm here. Dean, there's a very real chance –"
"No." Dean interrupted. "No, Cas. Don't say that. Don't even say that."
"There's a very real chance I may not come back."

Dean was just standing there, shaking his head and muttering no, when Cas suddenly came closer to him. Not uncomfortably close, but close enough that Dean stopped his mumblings and looked right at Cas.
"That's why I'm here Dean. I might die. So… I need to tell you something." Dean looked confused.
"What?"
"Dean… I… I love you." And with that, he kissed him. Full on the mouth. And the funny thing was, Dean couldn't say he didn't like it. Their hands snaked around each other's necks, their bodies entwined. And then Sam walked in.

Sam was a little taken aback. He took a few steps out of the room and blinked. A lot. But they were still there. His brother and Castiel, kissing. He waited a few moments. Still kissing. He cleared his throat, and Cas pulled away from Dean.
"Goodbye Sam. Dean." Cas nodded at the both of them, and with a rustle of feathers, he disappeared.

"Dude. What the hell was that?" Sam said, half grinning. But Dean was just standing there. He seemed rather shell-shocked, just staring at where Cas had been just minutes before.
"He kissed me." Sam was almost out of the room when Dean spoke. "He told me he loves me and then he kissed me. He might die." Dean turned around. It was easy to see that he was only just keeping it together. Sam let out a sharp sigh.
"And?"
"And? And what, Sam? He might die. And, he loves me! Ha!" Dean threw back his head. "Son of a bitch. He loves me, he might, he probably will die, and he doesn't… Fuck. Fuck."
"Dean?" Sam frowned. "He doesn't know that… he…fuck! No." Dean stomped out of the room and out into the night. Sam shook his head noncommittally and he too left the dank basement.