Dean stares incredulously at Sam and shakes his head. "No Fucking way!" He turns to glare at Cas, "This is a seriously bad idea, dude."
Dean had spent the last few days holed up in some dingy motel room in the middle of nowhere, hiding from a bitch of a witch with a "soul-trap." She had started a spell to capture Dean's soul, and if he came within range of the damned box, his soul would be ripped from him and sucked into the box.
Sam gave Dean puppy-dog eyes and said, "Come on, man. It would be temporary, and this is the only plan we've come up with." His brilliant idea was to have Dean "sell" his soul to Castiel for safe keeping, until they could get the box away from the witch and kill her. Sam theorized that Dean's soul would be safe from the box if it was in Castiel's possession. Cas could keep it all safe and warm while Sam and Dean hunted the witch. Then, when it was all over, Dean could buy his soul back from Cas.
Cas turned his serious face to Dean and asked in his deep, serious voice, "Do you not trust me to keep your soul safe, Dean? I promise I will cherish it and protect it just the way you took care of my overcoat."
A red flush crept up Dean's neck as he remembered how he had treated Cas's trench coat after he had walked into the lake. Dean had kept it neatly folded most of the time, but he had been unable to resist holding it and sometimes using it as a pillow. Several times, he had covered himself with it like a blanket when he had nightmares. He had even moved it to the trunk of a stolen car, just so he knew it would be close at hand at all times. Then he had found "Emmanuel" and returned the coat to Cas.
Dean rolled his eyes and gave in to his brother and the Angel. Honestly, he was tired of arguing with them. He was tired of being trapped in this stinking motel room. He was going stir crazy.
Dean flicked his eyes toward Sam and then back to Cas's sincere gaze. "Fine," He huffed. "What will you trade me for my soul?"
Cas smiled and held out his suddenly full hands. "How about this apple pie?" Dean glared at the angel but accepted the still warm pie.
Sam cleared his throat and said, "You still need to seal the deal." Dean groaned. He knew enough about deals with demons to know that you sealed the deal with a kiss. He put his pie down on the bed and braced himself for an angelic kiss.
Cas took one step closer to Dean and started to reach out with one hand. Dean became impatient and strode to meet the angel in the middle of the small room. Dean reached out with his right hand and grabbed Cas by the back of the neck. He pulled Castiel in to him until their whole bodies were touching and firmly pressed his mouth onto the angel's.
As soon as Cas parted his lips in a muffled grunt, Dean slipped his tongue into the angel's mouth. Cas raised his hands and gripped Dean's hips. He used his own tongue to explore Dean's mouth. Cas tasted like cinnamon and his mouth was hot against Dean's. Cas slid one hand up Dean's back and held him close. Dean lost himself in the slow but powerful kiss.
After several minutes had passed, Sam cleared his throat. "Uh, guys?" he asked. Dean finally broke the kiss and stepped back from the dazed looking angel. Cas lifted one hand and touched his own lips for a moment before saying, "Thank you, Dean. That was very nice, but angel deals are not like demon deals. A handshake would have sufficed."
Dean glared at Cas and then at his smirking brother. He turned and stormed out of the motel room. As he slammed the door behind him he could clearly hear Sam laughing louder that he had ever heard before.