Disclaimer: Supernatural and all its characters belong to Kripke and the CW.

Warning- Some spoilers for Season 4 up to It's a Terrible Life. This takes place sometime after It's a Terrible Life.

Previously on Supernatural- He quickly grabbed hold of his shirt to keep it from slipping off his tiny body. "He made me a little kid again!"

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Sam scowled over at Dean as his brother continued to laugh at his predicament. "It's not funny!" Sam growled as he slowly and carefully stood up on his bed and crossed his arms. Feeling his shirt falling once more he quickly dropped his hands catching it as it reached his waist. With one last glance at his big brother Sam took a deep breath and hollered, "Castiel! Castiel, come back and fix this right now!...Castiel! I know you can hear me! Get back here and turn me back!" Sammy tapped his foot impatiently on the bed as he waited for some sign of the angel's presence. When nothing happened, he turned to the only other person who might be able to help. "Deeean!" he growled. "Do you think you could quit laughing for a minute and help me out? After all, he is your angel."

Dean sat up and brushed the tears off his face that the laughter had caused. Looking at his little brother he snickered. "Nice skirt there, Sammy." He joked covering his giggles with a fake cough. Getting hit with Sam's infamous puppy dog look Dean sighed. "Fine, I'll call Cas for ya. Hey Castiel! Sam says he's ready to be a big boy again!" he bellowed with a grin. "Did you hear that Castiel? *Snicker* Sam wants you to come change him!*Snicker*!" He waited a few minutes and then glanced around the room. "Sorry, kiddo. Looks like Cas isn't answering."

"Dean, quit fooling around! This is serious! What if Lilith..." Sam stopped mid-sentence as something caught his eye. "Hey, what's that?" he asked pointing to the two enormous cardboard boxes stacked in front of the window. Sitting down he carefully slid off the bed feet first. Once on the ground he grabbed a hold of the hem of his shirt and hitched it up as far as he dared and headed for the boxes.

Turning at his brother's question Dean glanced at the boxes before looking back at Sam. He chuckled at the sight his brother made in his too big shirt. A wicked grin spread across his face just as Dean called out, "Oh! Oh! I know! You're a can can dancer! Kick those legs, little brother!"

Ignoring his laughing sibling Sam stepped up to the boxes examining them for any labels or markings that might indicate what was inside. Finding none on the sides he stood on his tiptoes to try and see the top of the bottom box. Unable to see anything from his vantage point Sam huffed. Deciding his only option was to climb to the top he reached up and grabbed the edge of the bottom box.

"Whoa, runt! No climbing!" Dean scolded scooping his little brother up and causing Sam's shirt to fall to the floor. Dean set Sammy on the nearest bed and bent down to retrieve the shirt which he then wrapped around his brother like a blanket. "Sit right there and I'll check out the boxes."

"Deeean!" Sam whined pulling his arms free once more.

"Saaam!" Dean whined back. "Just chill a minute, dude." Noticing an envelope on top of the boxes he reached over and grabbed it. Tearing the envelope open he pulled out a small card with four words written on it. "Supplies for little Sam" he read with a smirk. Tossing the card to his brother Dean took out his knife and cut the tape on the top box.

Sam turned the card over in his hands before setting it aside. Watching his brother opening the first box he growled, "If there are any diapers in those boxes, I will kick his ass."

Dean looked back at his brother for a moment and then pulled open the first box and glanced inside. "Well, let's see" he said reaching into the box, "There's a small step stool and a car seat."

"Oh, that's real useful." Sam sarcastically stated. "The impala doesn't even have seat belts, Dean."

"I'll find a way to make it work, Sam." Dean declared setting the car seat over to the side. Reaching inside the box once more he brought out a small box and tossed it to his brother. "Here's you some sippy cups." He gleefully said as he pulled two colorful packages out. "Oh and look what else! Big boy pull-ups!"

"Oh, Hell no! I'm not wearing those!" Sam shouted.

"But Sammy, Castiel got you two kinds. See? You can wear the monster trucks or Diego." Dean said as he held both packages in front of his little brother.

"I don't care what's…wait a minute? How do you know that cartoon character's name, Dean? Something you wanna tell me?" Sam asked with a dimpled grin.

"I, uhh, I, oh shut up!" Dean hissed as his little brother started giggling. Picking up the now empty box he tossed it to the side and tore into the other one. Pulling it open he glanced at the various contents smiling as one caught his eye. "Oh, Sammy!" he called as he took the smaller box out and held it behind his back. "Guess what else Cas sent you?"

Sammy warily glanced at Dean. He'd seen that look enough times to know that it didn't mean anything good. "What's behind your back, Dean?" he hesitantly asked.

"Oh, just this little thing" Dean casually stated as he set the box on the bed beside Sam.

Sam took one look at the picture of the box and hollered, "NO! No way, no how am I using that thing! Get it outta here!"

"Oh come on Sammy! It's not like it's a real potty chair. It just fits over the toilet so you don't fall in." Dean quipped as he reached back in the box. "And Cas even thought to send some medical supplies, too. Look! Here's some children's Tylenol, a heating pad, a, umm, baby thermometer…"

"Dean" Sam warned.

"And some fever reducer" Dean continued, "they're suppositories, but…"

"Dean!" Sam hollered. Standing up he snatched the box of medicine from his brother and quickly tossed it in the trash can. "You are not getting those anywhere near me so just forget it! And that's goes for the thermometer, too!"

"Now Sam, don't be like that." Dean calmly said as he walked over and plucked the box out of the trash. Fighting not to smile he walked back over and put the medicine back with the rest of the supplies. "You don't throw away medicine. You know that. You never know when we might need it."

"Fine, you can use it then" Sam replied. Sighing he pinned Dean with his puppy dog eyes and asked, "Now can you please quit playing around and find me some clothes. I'm getting cold."

"Alright, alright" Dean conceded. "Party pooper" he mumbled as he pulled a shirt, pants, socks, and shoes out of the box. "Here you go"

"Uhh Dean, what about boxers?" Sammy questioned as he stared in disgust at the pale blue Elmo shirt he held in his hand.

"Sorry Sammy, afraid Cas didn't put any in the boxes." Dean told his brother. "You'll have to wear the pull-ups." He brought the two packages over and set them on the bed.

"No way, Dean! I am not wearing those!" Sam adamantly stated.

"Well Sam, it's either that or go commando" Dean pointed out with a grimace. "Man that sounds wrong." Seeing Sam's hangdog expression Dean rolled his eyes. "Look Sam, just wear them for now. I promise I'll stop at the first store we see and get you some boxers, okay?"

"No underoo's?" Sam inquired.

"Scout's honor" Dean replied holding a hand across his heart.

"Fine" Sam conceded reaching for the yellow package with the monster trucks. He grabbed the sides of the bag and pulled. It took three tries but he finally managed to rip open the plastic spilling half the contents onto the bed. Snatching up one of the hated garments Sam motioned for Dean to turn around. He waited for Dean to face the other way and then swiftly removed the huge shirt and pulled up the pull-up followed by the tiny jeans. Glancing at the blue shirt Sam wrinkled his nose. "Hey Dean? Do you think you could hand me a different shirt?" he called.

"Sure short stuff" Dean answered. He side stepped over to the box and fumbled around inside for a moment before coming up with a white Stitch shirt that boldly said, "Bad to the Bone" across the front. "Here you go"

"Cute Dean" Sam muttered as he took the offered shirt. Putting it over his head he tugged and pulled and pulled and tugged trying to get it on. After several minutes of struggling with the uncooperative shirt, Sam finally called for reinforcements. "Dean, I uhh, I need some help."

Dean turned back around and bit his tongue to keep from laughing at the sight of his Stanford educated brother with his head caught in one of the sleeves of his shirt. Walking over he quickly pulled the shirt off before carefully putting it on his brother the right way. Picking up the socks and shoes he swiftly put those on Sam's feet before his little brother could protest. Stepping back Dean looked Sam over from head to toe. "Looks good Sam" he stated nodding his head. "Now, we're gonna pack and head for Bobby's place. We'll be safe there until you're, well, you again."

"But Deeean" Sam whined.

"Sounds like somebody needs a nap" Dean commented as he started piling things back into the boxes.

"I do not need a nap!" Sam growled. "I'm a grown man, for Pete's sake!"

"When has that ever stopped you?" Dean pointed out grinning as Sam glared at him. He lifted one of the boxes and slowly trudged to the door. "Stay put midget. I'll be right back." He ordered as he walked out the door. Minutes later Dean came back through the door, snatched up the other box, and strolled back out again. Stepping into the room he quickly gathered up all their stuff that was scattered across the room, stuffed it into their duffles, and threw them over his shoulder. He picked up the car seat in one hand and held the other out for Sam. "Come on Sammy, let's hit the road!"

"It's Sam" Sam grumbled as he begrudgingly took Dean's hand and followed him out the door. Huffing as Dean led him to the back door he kicked at the pavement muttering something about "stupid overprotective big brothers". He watched his brother open the back door and set the car seat inside. He stared in shock as Dean leaned inside the car and hooked up the car seat. "Dean, the impala has seat belts." He whispered.

"Yeah, guess Cas thought of everything after all." Dean replied as he scooped his little brother up and settled him in the car seat. After making sure the seat belt wasn't hurting Sam, Dean patted him on the head and shut the door. He climbed into the driver's seat and revved the engine before turning to Sam. "Ready to ride, Sam?" he asked.

"Yeah" Sam yawned.

Smiling Dean carefully backed up and pulled out of the motel parking lot. A few miles down the road he glanced into the rearview mirror to find Sam fast asleep in his seat. "Way to go, baby" he whispered patting the impala's dash. "Knew he couldn't resist your rocking. You've been putting him to sleep all his life."