The steady thwack of Dean's machete was beginning to get on Sam's nerves. Don't get her wrong, she was glad that Dean's strong muscles were getting the workout instead of hers, but they had been trudging through swamp for hours.

Mud had worked its way into every piece of Sam's clothing. Her toes squished in her boots. Her jeans and shirt were the same monochromatic tan as her hands, face, and hair. Sam wondered why people always disappeared 'mysteriously' in places that were so disgusting or hard to reach.

In the past few months, Sam and Dean had hiked up a mountain, trudged through sewers, crawled into ductwork, and now they were in the Okefenokee Swamp. If the creature from the black lagoon didn't get them, gators would.

A swarm of mosquitoes seemed intent on draining Sam of all her blood. She contemplated pulling out holy water and a crucifix to see if they weren't actually tiny vampires, but she didn't want to draw Dean's attention. It was way past time when she should have taken over trail blazing.

As Sam tipped her head back to gulp more water from her canteen, Dean let out a short "Gaaahhh" and slipped out of view. The relatively dry ground that they had been walking on had dropped off into a deep pool.

Unlike the other swamp water they had encountered, this pool seemed clear and fresh. It didn't reek of sulphur and wasn't weed infested. Sam laughed at Dean and reached down to take his hand. "That's one way to get the mud off." She quipped.

Dean allowed Sam to help him out of the small pond. "At least it's clean. It must be spring fed." Dean replied.

A narrow beam of sunlight speared through the pond-cypress trees and lit Dean like a spotlight. "Huh." Sam commented. She was looking at Dean in puzzlement. The quick dip in the spring had cleaned a lot of mud off of Dean. Maybe that was why his hair looked lighter; more like the blond he had until his late teens. Maybe that was why his skin looked clean and smooth. Maybe that was why he was exactly her height instead of 3 inches taller.

"Oh Shit, Dean." Sam blurted. "I think you just found the fountain of youth."

Dean scowled at Sam and said, "Very funny, Sammy. I'm soaked and I'm never gonna get dry in this humidity. It's your turn with the machete." His voice was not high pitched, but it didn't have the gruff timbre Sam was used to.

Sam just continued to stare at Dean. Her mouth was hanging open in puzzlement, and she was eying him up and down. "No seriously, Dean, I think you are like 15 or 16 years old. Tops." She replied with a smirk.

As his wet jeans started to slide down his narrower hips, Dean looked down at himself in fear. "Oh my God, Sammy, I'm shrinking!" He yelled.

Sam watched Dean to be sure, but she thought he was no longer reverse-aging. His features were not changing and he wasn't getting any shorter. "I think it stopped. You're not getting any younger. Ummm…. I think it may only work if you are submerged."

Dean pulled his belt to the
tightest holes and bent over to roll the legs of his jeans into cuffs. He the stood straight and said, "Alright, let's find those missing hikers."

Sam could tell that Dean was not ready to face what was happening to him, but that didn't mean she would let him ignore it. "No way, Dean. We are getting back to the motel and calling Bobby. We need to know if this is permanent or is going to wear off."

For a moment, it looked like Dean was going to argue with her, but then he shrugged and said, "Fine. I could use a shower. I think I still have mud in my ass crack." As Sam absorbed the changes in Dean's physical appearance, she took solace in the fact that his personality seemed the same.

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Sam could see anger and frustration bubble to the surface again as Dean had to adjust the Impala's seat so that he could drive. Sam had suggested that she should drive since none of his fake id's had his current likeness on them, but the sullen glare and "No" that Dean barked at her made Sam resign herself to being a passenger.

The drive to the motel was not a long one, but the itch of drying mud made it seem interminable. As soon as she entered the motel room, Sam began stripping off her dirty clothes and headed to the bathroom. She was not aware that Dean had followed her until he slid into the shower behind her.

"What are you doing, Dean?" Sam sputtered. She turned to face him and backed into the wall.

She hadn't realized just how much Dean had changed until he was naked in front of her. Dean was almost exactly her height. Sam was used to looking up into Dean's eyes due to a 3 inch height difference. Now, he was maybe half an inch taller than her. His shoulders weren't as broad, but they still had good muscle definition. His hips were much narrower, but his face was the most changed.

Dean's younger face was almost baby soft. Sam had forgotten just how full his plush lips had been as a teenager. His wide, green eyes were still framed by thick, dark lashes, but they no longer had the fine lines at the corners that gave Dean an air of maturity. His jaw wasn't as heavy and his hair was more dirty blond than brown. Dean no longer had his customary stubble, and his freckles dusted over perfectly smooth skin.

It had been at least ten years since Dean had looked like this. If she had to guess, Sam would peg his physical age at 16, but the rest of the world might think he was younger than that. He was just so damn pretty. Sam was not surprised to find that his new, younger form did not turn her on at all. As a matter of fact, she was more than a little uncomfortable with the lust she could see in Dean's eyes as he reached for her.

Sam tried to cover her breasts with one arm while blocking Dean's advances with her other. "I don't think this is a good idea." She told him.

The look of mixed surprise and hurt that filled Dean's eyes was almost unbearable. "I'm sorry, Dean. I just don't … I mean, you're not… that is… I'm not a pedophile!" Sam managed to gasp out.

"I'm not a little kid!" Dean exclaimed. With a resigned huff, he muttered, "Fine. At least let me wash the mud off."

Sam nodded. "Sure. I'll even wash you back for you if you want."

Dean glared at her and answered, "No thanks, I would want you to molest my innocent little body."

They showered in silence and it was just a few minutes before Dean left the shower, dried off, and exited the bathroom. Sam hadn't meant to hurt Dean's feelings, but the thought of being sexy with a 16 year old really made her sick.

When Sam joined Dean in the motel room, he was already sitting on the bed wearing baggy sleep pants and a tee shirt. The sight made Sam feel guilty, because he had been sleeping either naked or in just boxers since Valentine's day. Seeing him dressed the way he did when their relationship was still screwed up made Sam's stomach clench.

Sam dressed in her own sleep outfit of loose shorts and a tee shirt. Their motel room had just one king size bed in it, so Sam climbed onto it next to Dean. He was sitting on the edge of the bed with his feet on the dirty motel carpet. His arms were crossed on his chest and his shoulders were slumped.

Dean was studying his feet and legs. "Is this really what I looked like when I was 16?" He asked.

Sam had only been 12 or 13 when Dean was actually in his mid-teens, but her memories of Dean's appearance matched closely with what she was seeing now. "Yeah. I'm pretty sure you look just like you did then. Why?" Sam answered.

Dean's shoulders slumped and he scrubbed one hand over his face. "I really thought I was such a bad-ass, back then. No wonder Dad's friends didn't take me seriously."

Sam thought back to her preteen years. "I don't know, Dean. I seem to remember thinking you were tough as nails. You were a better hunter than most of those guys by the time you were 12."

"I can't even go out and get a beer like this, Sammy." Dean huffed. "I can't hustle pool or cards. I could probably find some pervert to fuck me in an alley, but you won't touch me." He continued.

Sam really didn't want to think about how Dean knew perverts would want to take advantage of his younger body. She decided to save that discussion for another time. "I'm sorry. Just, I don't know… give me a minute to get used to this. OK?" Sam spoke to Dean as she reached out to run her hand down his back. She thought it was a good sign that he leaned back into her touch.

"I'm not 16, you know." Dean stated. He looked over his shoulder at Sam and answered the question in her eyes. "I look 16, but I'm still 26. I'm still me in here. I just look young. I mean… this is just my body, not me."

Sam wasn't sure where he was going with this, but she answered Dean anyway. "I know." She said and moved up behind Dean so that she could rest her head on the nape of his neck and wrap her arms around his (kind of skinny) chest.

Dean wasn't always good at saying what he was feeling, but he tried again. "What I mean is, I thought you loved me, not my body." Sam squeezed him tighter and replied, "I do love you." Dean shook his head. "You don't want me in this body. What if I'm scarred in a hunt? Would you still want me then? Or if I lose a hand, or get fat, or get old and grey? Will you decide you don't want any of those bodies either?"

As tears welled in his eyes and his throat got tighter, Dean's voice had started to sound gruff, like it usually did. Sam sat with her nose pressed into the hair on the back of Dean's head and breathed in his smell. Sam realized that Dean was right. She loved him, not the body he was in. Well, he had a smoking hot bod, but she knew she was going to love him no matter what he looked like.

Sam pressed her lips to the back of Dean's neck. "You're right." She nipped at the skin behind his ear and sucked on the side of his neck. "We can deal with this. I do love you, no matter what."

Dean's lust filled groan may not have been as deep as it normally was, but it still sent a shiver of arousal straight down Sam's spine. "Can I kiss you?" She asked.

Dean's answer was to twist in her arms and push Sam backwards onto the bed. He supported himself on one elbow and gently cupped Sam's face with his free hand. Sam tried not to think about how young he looked as she stared up into his brilliant green eyes.

"You can close your eyes, if you want to." Dean murmured into Sam's ear.

Sam shook her head and replied, "No. I'm not gonna pretend with you."

The kiss began gentle as if Dean was giving Sam the chance to change her mind. His lips brushed across Sam's before pressing more firmly. Dean's tongue flicked out to swipe at Sam's mouth and she welcomed the intrusion. As the kiss became more passionate, Sam realized she was kissing Dean. It really sank in that he may look different, but he was still the man she loved.

Large hands began to slide across Sam's body as Dean explored her body. Sam had been so focused on how Dean had changed that she really hadn't taken the time to see how he was the same. He smelled the same. His kiss was the same. His hands were the same. Sam inched her hand down Dean's body toward the erection that was pressed firmly against her hip.

Sam managed to slide her hand into Dean's sleep pants and around his cock. She had decided that it was another body part that remained unchanged and gave it a squeeze. Dean gave a deep moan and shuddered against Sam's body. Warm stickiness coated her hand. Dean had just had an orgasm from one brush of her fingers.

A pink flush crept up Dean's face as he blushed from embarrassment. "Oh my God, I had forgotten what a hair trigger I had at 16, but I swear I can get it up again in before you can say refractory period."

Sam looked awkwardly at her jizz covered hand. "I'm just gonna go wash this," She said, "and Dean, get naked while I'm gone. I want to see if I can break my record for how many times I make you cum in one night." Sam smirked at Dean.

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A few weeks later

Dean woke slowly and stretched until his spine popped. He was glad that his body had returned to 'normal' within a week of his swim in the fountain of youth, but some minor aches and pains had returned with his years.

He rolled over to snuggle with Sammy and came face to face with a very large, naked man. Dean grabbed the knife from under his pillow and yelled, "Hey!" at the sleeping man. Wide hazel eyes blinked at Dean and the man said, "Dean. What the fuck!"

As the man clutched at his throat and stared down at his body, Dean realized that the man was Sammy. She or he was a large, muscular, naked man. As strange as he looked, it was still obviously Sam. He had Sam's rich brown hair, but it only fell to his shoulders. Sam's nose looked oddly small on the man's face. His lips pinched into the 'bitch-face' that Sam always made. The eyes were the same changeable hazel that Dean was used to seeing. Sam leapt off the bed and ran to the bathroom.

From the closed bathroom door, Dean heard, "I hate witches!" Dean asked, "Sammy, can I come in?"

A yelled, "No!" was Sam's first response, but she continued, "Hold on… just give me a minute." Dean could hear heavy breathing and was worried that Sam was going to hyperventilate.

Sam stared at herself (himself) in the mirror. She tried to reconcile the man in the mirror with her own concept of self. She was now a very tall, very muscular, very hot man. "Dean, I'm super sexy!" She yelled to the closed door. She could hear Dean's muffled, "Um… OK."

Sam opened the door a crack so that she could hear Dean better. "No, seriously, dude." Sam continued. "I'm like totally ripped. I have muscles I didn't even know existed. I think my abs are an 8-pack!" Sam was becoming enthusiastic in her glowing review of her new body. "Dean, I'm definitely taller than you."

If Sam had seen her man-self walking down the street, she would have drooled. She felt a new heaviness in her groin and saw her growing erection in the mirror. "Ha! I think 'Little Sammy' is bigger than the 'Dean Bone', too!" Sam exclaimed.

"Jeez Sammy, I don't want to know that." Dean replied through the door.

Sam opened the door fully and watched as Dean's eyes grew wide at her aroused state. "You're gonna know when I'm pounding into your tight ass." was Sam's response.

Dean looked horrified. "You're not getting anywhere near me with that thing Sammy! It's a goddamn monster."

Sam hoped that puppy-dog eyes worked as well in her man form as they did in her girl body. She pulled her eyebrows together and opened her eyes wide. "Are you saying you won't love me in this body, Dean?" Sam asked.

Dean groaned and answered, "We're gonna need lube. " He took another look at Sam's enormous dick. "Lots and lots of lube."