Dad wasn't back yet, and Dean began to worry that they'd run out of food before he returned. When he had expressed his worry to Castiel, the angel had left him and Sam alone in that hotel room, which unnerved him.
After ten minutes, there was a small knock at the door. Dean grabbed the shotgun while Sam hid behind the bed, and aimed it at the door. "Who is it?" he called out.
"It's me, Castiel," came the reply.
Shotgun still aimed, Dean went to look through the peekhole, but he couldn't quite reach. He unlocked the door and opened it just a little, before cautiously peeking through the crack. There he could see Castiel, standing in his too big trench coat and holding two plastic bags. Dean pushed the door open further and ushered Cas in.
"What's in the bags, Cas?" he asked as the blue eyed angel walked into the room. Dean put the safety on the gun and placed it under the couch, where he usually stored it.
"I brought food," came the reply. Dean ran over to rummage through the bags.
"Woah, Cas. Where did you get all this?" asked Dean.
"It is not of import, Dean. Just eat, you seem hungry."
"Sammy!" Dean called. "Cas got food!"
The little Winchester put his book down and ran over to where to other two were. "How did you get so much food?" he asked, awestruck.
"I just picked it up from the shop and clicked out."
"Wait," said Dean. "You- you stole from a shop? Isn't that against angel code or something?"
"It isn't like that, Dean. I will make sure Gabriel sees that they're paid for later."
"Gabriel?" asked Sam.
"My brother, the archangel. He's why I'm here with you instead of fighting with him," sighed Cas frustratedly.
"What happened?" asked Dean, curiosity piqued.
"Can that be our bedtime story tonight?" squeaked Sam.
Dean saw the uncertainty in those bright blue eyes. "If Cas doesn't want to tell you, he doesn't have to, okay Sam?" he butted in before the angel had a chance to reply.
"No, Dean, it's fine. I can tell you what happened before you rest tonight."
"You sure?" Dean asked.
The angel nodded his consent and the matter was dropped. "Now," he said. "Anyone hungry?"
They shared out the food, making sure they would definitely have some leftovers to last them at least a couple of days.
"Dean, why do you sleep with Cas?" asked Sam suddenly, making Dean choke slightly on his burger.
"Well, Sammy, I, er… it makes me feel good. Warm, an- and safe," he explained, blushing.
"Dean," began Cas, but the other waved him away.
"Leave it, Cas."
Sam watched the encounter thoughtfully. "Do you love him?"
"Well, I love him like I love you. Is that okay?"
"Yeah. I think you two are good together," said Sam simply before taking a large bite of the salad Castiel had got for him.
Dean looked at Cas and saw that he was smiling shyly. It was cute.