A/N: Sorry this is so late - updates should be better in the future.

If Dean doesn't seem to have the mentality of a four year old, it's because I really don't know how four year olds act. Also, this chapter really kinda sets up the plot, but don't worry, there'll still be loads of fluff before anything intense happens.

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With the sound of a bell chime, Sam and Castiel entered the diner with Dean riding on Castiel's shoulders.

"What are you hungry for, Dean?" Sam asked as he flagged down a waitress, following her to their booth.

"Pie!" exclaimed Dean, pointing at the glass case full of the pastry.

Sam smiled as Dean slid into the booth. Both Sam and Castiel wanted to sit next to Dean, and tried to passive aggressively fight their way to the seat Dean picked.

"Cas, sit next to me!"

Well that settles that.

"No, Dean. No dessert before breakfast," Sam said as he slid across from his now younger brother.

"Awww. You're just saying that." Dean pouted as he latched onto the angel, causing for Castiel to look at Sam.

"Dean needs pie," he stated.

"Later," Sam replied before picking up a menu the waitress left for them. "First let's get something nutritious for a growing boy."

"Cas, I need pie. I need it or I will explode." He removed himself from Castiel and casually added, "That happens to me sometimes."

Castiel widens his eyes in horror. "Sam, Dean -"

"Is just being dramatic." He waved Castiel off, inspecting the menu. Dean frowned as he looked at something past his now older but not known to him brother. "Uncle Sammy," he started but Sam flagged down their waitress. The waitress named Cindy - Sam noticed since Dean wouldn't - came over to them with a pen and pad. "How about some whole wheat toast with an egg white omelet, Dean?" Sam asked. Cindy began to write down the order, but Dean shook his head.

"I want chocolate chip pancakes," he told the waitress. "Please," he added politely.

Cindy looked over to Sam for approval. He shook his head, and opened his mouth to speak, but Castiel interrupted, "He may have the pancakes."

Cindy nodded as Sam sighed, but resigned to letting Dean eat an unhealthy breakfast. "I'll have toast and omelette then," he said as he collected the menus and handed them to her.

"And for you?" She looked to Castiel who shook his head.

"I don't -"

"Cas is gonna share with me!" Dean proclaimed, standing triumphantly from his seat. "He's my guardian angel, you know," he told her in all seriousness.

Cindy chuckled. "I bet he is." She went over their order before walking off to give it to the kitchen. She quickly came back with a piece of paper and a basket of crayons.

"I forgot to give this to you; here you are, sweetie." She handed them to Dean, who took it eagerly.

"Yay!" he exclaimed and was soon off coloring, leaving Castiel and Sam to their own devices.

"What do you plan to do now?" Castiel asked Sam who was watching his brother with a smile on his face.

Sam turned his attention to Castiel and shrugged. "I suppose we have to take a break from hunting if not stop at all; Bobby already knows about the situation."

Castiel started to nod but frowned instead. "This situation with Dean is problematic."

Dean perked up at hearing his name, and looked up to see Sam reply, "Perhaps, or it could be a blessing in disguise.

There was a moment of silence so Dean waved his what seemed to be a picture of a pony that was on the TV earlier. "I used purple for Twilight!" he declared, looking at them for compliments.

The two adults looked over to Dean and smiled. "Looks exactly like her," Sam said.

Castiel nodded. "Very purple, Dean."

Dean beamed. "Thank you!" He went back to his drawing.

"It would be for the best," Castiel said as he watched Dean start with the blue.

Sam nodded. "So you're here to stay, Cas?"

Castiel nodded as well. "I am here to stay."

"Finished!"

Both of them turned to Dean, who in addition to the blue has added orange to the mix. "Cas." He pointed to the purple. "Uncle Sammy." He pointed to the orange. "Me!" He pointed to the blue.

"I guess we're ponies then," Sam said with a chuckle while Castiel nodded and smiled. Dean beamed at the two, grinning widely as he started drawing red apples, sparkles and a rather limited rainbow. The pair watched Dean silently, who was too engrossed in his activity to notice the gazes.

Luckily the diner was practically empty, so it wasn't long before Cindy was walking over with a tray of food.

"Here you are, fresh from the kitchen." She placed the omelet and toast in front of Sam first before giving Dean his pancakes was about to place down syrup. Sam waved the syrup away, not wanting Dean to have a sugar overload. "Enjoy!" She gave a wink before leaving, but it was left unnoticed as Dean gushed over his food.

"Wait wait, Dean," Sam said, pulling the plate towards him and his own to the side. "Let me cut this up for you."

Dean pouted. "I can do it myself, Uncle Sammy," he said, reaching out for a knife.

"No!" Castiel snatched the knife Dean was reaching for and kept it far away from the child. "No knives, Dean. Knives are dangerous instruments that you no longer need to wield."

Confused, Dean was about to retort but Sam interrupted with a "Finished!" and pushed the plate back towards Dean.

The little squabble seemed to be forgotten as Dean just smiled happily. "Thank you, Uncle Sammy. Here, Cas!" Dean carefully pushed the plate with a stack of now cut chocolate chip pancakes in the middle of their side of the table before picking up his fork as Castiel picked up his own. Dean ate quickly, but made sure to leave some for Castiel, who was taking his time with his bites. Dean noticed and paused. "Everything okay, Cas?"

Castiel stared at a forkful of pancake. "It tastes like… molecules."

Sam raised an eyebrow as he paused mid-bite. "Maw-leh-kewls?" Dean tried to pronounce. "What's that?"

"A molecule is a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction," Castiel recited, as if reading from a dictionary.

Dean just blinked. Sam sighed. "He means it tastes so good, he wants to enjoy it slowly."

"Oh, okay!" About half of the pancakes were left, so Dean pushed the plate to Castiel. "Here you go! You can have the rest!" He then proceeded to hum to himself while kicking his little feet above the ground.

Sam and Castiel smiled, even as a child Dean was so selfless. "Why thank you, Dean," said the angel. "But are you sure you do not want to eat anymore?"

"Saving room for pie!" Dean answered, pointing at the display case by the door. "Please, Uncle Sammy? Can we get pie?"

"We most certainly can, and we most certainly shall," replied Sam, flagging down Cindy. Castiel slowly made his way through the pancakes, making odd faces as he finished them.

"The molecules, they taste so..."

"Molecular?" Sam supplied just as Cindy made it to their table.

"I want apple!" Dean exclaimed, causing for Sam to request a slice of apple pie for his now younger brother. Cindy said she'd be right out with it as soon as the fresh one was out of the oven.

As they waited for the pie, Dean crawled under the table and to Sam's side of the booth. Castiel frowned while Sam grinned. Dean took no notice of this as he reached over for his paper and crayons.

Dean flipped the paper over and started coloring some more, this time what seems to be a rainbow pie shared by all three of them.

Suddenly, Dean paused.

"What's wrong, Dean?" Sam asked, starting to become concerned.

"Bathroom," Dean said, making his way to get up. Castiel started to get up as well, but paused when Dean looked back to them.

"I can do it myself, Cas," he mumbled. Castiel slowly started to sit back down. Dean smiled as he got up to make his way to the restroom.

"I really don't like this," Castiel said after a moment, watching as an older man picked himself up from his table and followed after Dean.

"Relax, Cas," Sam said. "Dean's a big boy – kinda - and he might have been a little embarrassed if you had to come with him to go potty."

"Not Dean, that man." Castiel glared at the bathroom door that closed. "There's something off about him."

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Dean hummed to himself as he relieved himself, and was still humming as he washed his hands.

"Dean."

Dean jumped, sloshing water all over his shirt. He turned to see an elderly man smiling at him.

"Y-yes?" Dean tilted his head, getting a warm, familiar feeling from the man. "Do I know you?"

"Yes and no." The man sighed. "You shouldn't have done what you did, Dean. You're more vulnerable now. But it's okay, I'm here now." He held out his hand for Dean to take.

Dean felt like he should take it, but knew better than to. "M' Uncle Sammy told me not to talk to strangers…" he mumbled, looking away. He shook his hands to dry them off.

"But we're not strangers, Dean. Don't you remember me? I may not look the same, but I do feel the same, don't I?"

"Well, I do feel like I know you…" Dean said, frowning slightly. "Who are you again?"

The man smiled as he held out his hand again.

"It's me, Michael."

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Dean was taking too long, Castiel and Sam both agreed. They made their way to the restroom together, abandoning the table.

They came just in time to watch Dean about to take the elderly man's hand.

"Dean!" Sam shouted, causing Dean to jump and pull back his hand.

Castiel shoved into the man towards the stalls, eyes widening in realization.

"It can't be…" Castiel breathed.

"Uncle Sammy!" Dean shouted back, making a mad dash to his 'uncle' for a hug, eyes wet with tears.

"They're lying to you, Dean, " the man said. "Remember what I said."

Before Castiel could make another move, the man disappeared.

"Who was that?" Sam asked as he comforted his brother.

Castiel said gravely in reply, "That was Michael. Now that your brother has been exposed, he's going to try harder to get to him."

Sam hugged Dean tightly. "Like we'd ever let that happen."

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A/N: Thanks for reading!