Disclaimer: I don't own SPN.

When I started this series, I never thought that it would ever turn out like this. I never thought that Dean and Cas would end up so domestic as to have kids. That's a reason as to why I kept them in the bunker: to keep that small bit of themselves that still deals with monsters in some way. But back on point, I never thought that it would ever turn out like this and I am THRILLED ^_^

Thanks to Siriusly loving densi, mollienaturerocks, CastielSupernaturalDestielSalt, RangerHorseTug, KAL and masterjediratgrl31 for your reviews :)

202. Monster

A long, loud scream jolted Castiel from his light sleep. Next to him, Dean also bolted upright in bed and they looked at each other.

"Was that one of them?" Dean said.

"It sounded like Robbie," Castiel replied. Worry gnawing at his insides, he quickly slid out of bed and hurried down the hallway to Robbie and Zoey's bedroom. Inside, Robbie was sitting up in bed and crying, while Zoey held him close and comforted him.

"What's goin' on?" Dean said blearily from behind Castiel.

"Sorry! I'm sorry!" Zoey whispered, rocking Robbie back and forth. "Robbie just had a nightmare! We didn't mean to wake you! Please don't send us away!"

"Whoa, whoa, whoa. Slow down, Zo. We ain't sending you away for a bad dream." Dean slipped past Castiel into the room and sat down on the bed next to the children. "You okay, Rob?"

"Monster," Robbie sniffled. "Mommy! I want Mommy!"

"Mommy's in Heaven with Daddy, Robbie!" Zoey said. "You know that! Now Uncle Dean and Uncle Cas are taking care of us!"

Robbie shook his head, tears streaming down his cheeks.

"I want Mommy to save us from the monster!"

Castiel was at a loss at what to do. He was about to ask Dean when his human shifted closer and put a hand on Robbie's shoulder.

"Cas and I won't let the monsters get you," he said firmly. "We fight them, remember?"

"But what if they take me and Zoey?" Robbie cried. "I don't want them to hurt us!"

Dean looked up at Castiel.

"I'll keep them away. Cas, stay here with them for a sec."

Castiel took Dean's place on the bed. Unsure of what to do, he reached out and carefully ran his hand through Robbie's thick blond hair.

"Do you remember what I told you?" he said. Robbie sniffed.

"That you and Dean will always protect us," Zoey said immediately. Castiel nodded.

"Can I tell you something?" he said. Zoey and Robbie nodded. "I used to be an angel."

The children's eyes widened.

You were an angel?" Zoey gasped. Castiel smiled softly.

"My full name is Castiel. I am human now but that doesn't mean that I won't protect you. And Dean is the best hunter in the world. Nothing can get to you if he's protecting you."

"Did you have wings?"

"Yes, Zoey, I did."

"Were they big and fluffy and white?"

"I…suppose so. They are difficult to describe in any human language because angels are creatures made of pure energy. But if they were visible to your eyes then I suppose that they would be fluffy and white."

"Okay, I got everything we'll need." Dean was standing in the doorway with a canister of salt and a small can of spray paint.

"Was Uncle Cas really an angel?" Zoey demanded. Dean grinned and came to sit down next to Castiel.

"Yep. He pulled me outta Hell when I went there after sell – after saving Sam. We've been saving each other's asses ever since."

"Dean," Castiel chastised. "Don't swear in front of the children."

"Sorry," Dean said unapologetically. He held up the salt. "See this, Robbie? It's salt. It'll keep away ghosts and demons. Just pour it in a line and stay behind it. C'mere."

A wide-eyed Robbie got out of bed and watched Dean pour the salt across the doorway in a thick line.

"See? No ghosts or demons are getting in now. If you got any windows, you do it to them as well. Anywhere that anything can get in, salt it. If you can't get to an entrance, make a circle of salt and don't leave it. Got it?"

Robbie nodded. Dean beckoned Zoey over.

"Now, salt won't always be enough. Demons can find ways to break salt lines. So if you want extra protection – or you wanna keep 'em in one place – you draw a Devil's Trap. Any demons inside it won't be able to get out. Watch this."

He slowly and carefully drew a Devil's Trap in the doorway. Castiel watched with a fond smile. Dean had told him about having this stuff drilled into his head as a kid until he could recite it perfectly (though not the Devil's Trap, which he'd discovered far later) and being yelled at if he got even one thing wrong. This, Castiel knew, was the proper way to teach a child something.

"Now even if a demon gets past the salt, it won't get through that unless you break it."

"Can't the demon just scratch it out?" Zoey said.

"Nope. They can't damage it unless they're really powerful. But hardly any demons are that powerful."

Dean smiled and ruffled Zoey and Robbie's hair.

"But nothing's getting in here. This bunker is the safest place on Earth. Nothing can get in unless we want it to."

"What about monster spray?" Robbie said. "Mommy always used monster spray to keep them away."

Castiel was certain that Dean was going to tell Robbie that there was no such thing. However, Dean just grinned, stood up and picked Robbie up.

"Let's go make some, then. And I'll make you some hot chocolate and cookies if you want."

"Can we have mini marshmallows?" Robbie said. Dean chuckled.

"Hell yeah," he said as he carried Robbie out of the room. "You don't have hot chocolate without mini marshmallows. That's just wrong."

Zoey looked up at Castiel and grinned widely.

"There's no such thing as monster spray, is there?"

Castiel chuckled and held out a hand. Zoey took it.

"No. But Robbie doesn't need to know that yet, does he? Now, come and have some cookies and hot chocolate with your brother."