Title: An Unexpected Twist

Rating: M+

Pairing: Sam/Dean

Spoilers: General timeline of Supernatural; an appearance by someone from Buffy the Vampire Slayer (BTVS)early Season 7 ( I need a demon for the story)---you do not have to be a fan of BTVS to understand the fic- the demon is a very minor part of the story

Warnings: genderswap (girl!dean); wincest

Category: slash; romance/angst

Disclaimers: I do not own the characters of Supernatural or BTVS

AN: I am new to Supernatural fic writing; I have previously written Spike/Angel fic and a few others...I hope I capture the voices well...I live for feedback!

Summary: The brothers gets a lesson in life that they did not ask for. Will it change their relationship forever?

Chapter 1

Sam Winchester reached for the radio of the Impala and switched it off.

"Hey!" Dean said in surprise as he looked over from the driver's seat. "What the hell did you do that for? That was Zeppelin for Christ sakes."

"Tell me again why we are going back to LA? We just left there last night, Dean." Sam huffed. He knew he sounded childlike, but he was tired. They had just destroyed a Plesiom demon and Sam simply wanted to sleep for a few days.

"I know, little brother. But, I really want to go back to that bar."

Sam rolled his eyes and his voice dripped with sarcasm. "And I 'm sure it's not for the drinks."

Dean flashed his million dollar smile. "Of course not." He chuckled. "Did you see how hot that bartender chick was? I could have tapped that beautiful ass if you hadn't dragged me out of there so fast."

Sam sat up straighter. "Oh, I'm sorry that finding out where the demon was put such a crimp in your love life."

Dean became more serious. "Anyway, man. I kind of feel bad...leaving her hanging like that."

"Yeah, I'm sure." Sam turned back towards the window and used his jacket as a makeshift pillow. He knew he would not win this argument with Dean. When it came to girls, Dean had a one track mind. Sam resigned to drop Dean off and try to get a decent motel room outside the city. He hated watching Dean on his conquests to bed women. His brother wanted him to participate as well. But, Sam was not ready to move on from Jess. He felt guilty when he found himself looking at other girls. Dean tried to convince him that it was okay and a natural progression, but it was still so hard. He simply wanted to fight demons, find their father, and spend time with his brother. Despite the circumstances that reunited them, Sam reveled in the fact that he was together with his brother.

For some reason, he was increasingly annoyed when Dean spent time with others, especially women. Sam knew he was being selfish, but his stomach would be in knots as he watched Dean flirting with others. So lately, Sam spent time alone in the motel room, while Dean apparently satisfied his needs.

Dean looked over worriedly at his brother who seemed lost in thought. "Look, Sammy. We don't have a new gig hopefully for a few days. Maybe we could hang in LA. Have a little fun. What do you say?" He grinned.

Sam tried to ignore the warm feeling he got when Dean smiled at him. He could never stay mad for long at his older brother. He spoke quietly, trying to keep emotion from his voice. "Are we still stopping by the bar?"

"Hell, yeah." Dean answered enthusiastically. He paused for a moment when he saw Sam look down. "Is there a reason why I shouldn't?" Dean's eyes softened and narrowed as he observed his little brother.

"No, Dean." Sam's gazed towards the window. "No reason at all."

"I just really don't get guys, you know?" A blond woman said as she stared into her cocktail as she sat on a barstool. "You think you make a connection..." She trailed off.

A petite brunette sat opposite to her. "So, what happened?" She asked in a concerned voice.

The blond looked up. "I don't really know you."

"Oh, it's no big." The brunette smiled. "I'm just waiting for my friends to meet up with me and I hate sitting alone." She shrugged her shoulders. "I'm just trying to make conversation. You seemed sad sitting here all alone." She began to stand.

"Hey!" She gestured for her to sit. "Sorry. I guess I can talk about it. I can't really discuss with the other guys." Her eyes saddened.

"So..." The brunette prompted her.

"I'm so sick of LA. I came here five years ago to be an actress." She chuckled bitterly. "Well, you can see how well that turned out." She shook her head. "Most of the guys here are so superficial. They just want one thing. Especially working in a bar, you tend to meet the slimiest of them all." She paused. "Last night I was talking to this guy." She smiled. "He was beautiful, and seemed really nice. He was kind of cocky, but in a sweet way. He had this vulnerable look in his eyes." She sighed wistfully. "He kept coming up and buying drinks from the bar; he even waited until I got off. We shot some pool and just talked and laughed about nothing in particular."

"What was his name?" The brunette asked.

"Dean." She answered. "I got up to go to the bathroom and when I was walking out, I saw some tall guy run up to him and they left really quickly." Her eyes teared. "He didn't even say goodbye or anything." She placed her hands over her eyes. "I'm so stupid...I fell for it again."

The brunette leaned over and patted her shoulder. "It's not your fault. Men can be such jerks, don't you think?"

The blond nodded her head. "I mean, am I not pretty enough?"

"No, no. You're really pretty and have got very perky breasts."

The blond quirked her eyebrow a bit.

"Hey, sorry. I'm strictly hetero, but I'm just stating a fact." She smiled again. "Men just use women to get what they want. They'll promise you the world and then they'll just leave with no explanation. They don't know how hard it is to be a woman."

"No, they don't." The blond answered, her cheeks flushed with the cocktails she had consumed. "They have no freakin' idea!" She said as her anger and frustration increased.

The brunette smirked evilly as she leaned in. She fondled a pendant that hung around her neck. "Don't you wish..."

"I think I'm swearing off guys for awhile! I'm going to be celibate." Her eyes widened. "Better yet, I'm going to be a lesbian." She nodded definitively.

"I knew a lesbian couple once. Believe me, there is the same heartache. It doesn't matter who you love."

That defeated her attitude a bit. "Well, celibate it is, then."

The brunette felt like she was losing her. "Anyway, back to men...they can be so selfish..."

"I know."

"Don't you wish..."

"You know? I wish he knew how hard it was for us. No matter how far women have come, we still feel like they have to ask us out. That they hold the strings. They have no idea how it feels when men talk to our chests instead of our faces. It's just hard sometimes." Her voice trailed off. She smiled sadly, her eyes sparkling with unshed tears. "But sometimes, when it feels right, there is nothing better in the world than being with the one you love."

"But he wasn't the one, obviously."

She shook her head slowly, "No, I guess not." She placed her drink down and stood. "I don't want to be rude, my shift is over and I think I'm going to catch a cab and go home. Thanks for listening. I hope your friends show up soon." She extended her hand. "I'm Melanie, by the way. I didn't catch your name."

The brunette smiled happily. "I'm Anya. It was nice talking to you. Take care of yourself."

"You too." Melanie grabbed her jacket and walked out of the bar. Anya touched her pendant and it glowed.

Dean eagerly walked into the bar and began scanning the room. Sam stood behind him sulking.

"I still don't understand why I have to be here." Sam said.

"Because," Dean placed his arm around his brother's shoulder for a moment, "You need to have some fun too. Maybe Melanie has a friend."

"Yeah, whatever." Sam replied as he watched Dean walk over to the bar to inquire about the bartender. Dean returned a few minutes later, a frown upon his face.

"Man, I just missed her."

Sam tried to hide the grin that wanted to emerge. "Oh, Dean, sorry about that."

"Yeah, well. Plenty of fish in the sea." Dean tried to cover his disappointment. "So, Sammy, how about a beer?"

Sam smiled. "Maybe just one, then can we go?"

"Sure, bro. Anything for you." Dean smiled widely.

A few hours later, Dean sat watching the ice melt from his tumbler. He looked up when Sam returned to the table. "Sam, I thought you'd be takin' a leak for a week." He chuckled. "Hey, that rhymed!" He started laughing and wiping tears from his eyes.

"Jesus, Dean. You drank too much." He helped his brother stand up.

"Did not, Sammy...'m jus' happy, thas' all." He closed his eyes as he allowed himself to lean into the support of his brother.

"Where are the keys, Dean?" Sam asked as he patted the pockets of Dean's jacket.

"Hey, now little bro, watch those hands!" He chuckled again to himself.

Sam found the keys to the Impala and started walking towards the exit. Suddenly they stopped when someone bumped into his intoxicated brother.

Dean opened his eyes to find a petite brunette standing in front of him. "Sorry little lady." Dean said, full of charm.

"I'm sorry too." She said as she smiled widely as her hand unconsciously caressed
the green jewel around her neck.

Dean's eyes seemed to briefly focus as he looked at the pendant and then up to her. His eyes narrowed for a moment; but, then he shrugged it off.

Sam spoke. "Sorry if we hurt you. We're just in a hurry."

As she walked away, she heard the taller man say, "Come on, Dean, let's get you to the car." Anya walked to the back of the bar and out the exit. She smiled once again as she held her pendant. Her face changed to a demon visage; an evil grin upon her face. "Wish granted." She said and then disappeared.

"Come on Dean, we're almost to the car." He was surprised when Dean stopped and held his head.

"What's wrong, Dean?" Sam asked in a worried tone.

Dean felt woosy and lost his balance for a moment; but, the feeling was fleeting. "Think I drank too much." He spoke with slurred speech.

"No shit, Sherlock!" Sam exclaimed.

"Shut up, butt munch." Dean replied and they both laughed.

As Sam settled his older brother in the car, Dean leaned against the window for support. His eyes were drowsy and he let them close. Before the engine roared to life, Sam heard Dean speak in a quiet voice.

"Love you, Sammy."

Sam was stunned for a moment. "I love you too, Dean."

"Good...jus' wanted you to know...in case you ever leave me...jus' wanted you to know..." Dean trailed off and Sam heard a soft snore.

Sam's eyes watered as he watched his brother. He felt a protective surge within him. "I won't, Dean. I'll never leave you." Sam whispered. He took a deep breath, turned the ignition, and the engine roared to life.

Dean groaned slightly as he slowly woke up in the late afternoon. His head felt groggy; his hangover overwhelming him. His body fought every movement as he rolled out of bed. He swayed and grabbed the nightstand for support. When he regained his balance, he walked over to the bathroom. His bladder was screaming to be emptied.. Little light was peeking through the mustard yellow curtains, but the intensity seemed too much for Dean's eyes. He squinted as he shakily entered the bathroom. His mouth was dry, so he leaned over and turned the sink on. The cold water was refreshing as it hit his cotton plagued tongue. As he splashed water on his face, he was surprised to not feel the normal stubble he was so accustomed to. In fact, his skin was perfectly smooth. Dean stood up quickly and as he lowered his hands away from his eyes, he was stunned at what he saw. Dean screamed as he stared into his reflection.

Sam shot up in bed as he heard someone shriek. He stumbled out of the bed and quickly reached for a gun on the bedside table. He scanned the room and his heart began to beat even faster when he did not see Dean. He heard panting from the bathroom and made his way towards the noise. He pushed the door open and was stunned to find a petite woman in front of the mirror.

Sam raised his weapon. "Who are you? Where's my brother?" He said with a menacing tone.

Dean slowly turned around, her hands raised as she saw the weapon. "Sam..." She said with a slight quiver to her voice. "Sammy..."

Realization hit Sam as he stared into the woman's emerald, panic filled eyes. As he looked at her form, he noticed she was wearing his brother's clothes. The t-shirt now clung to her breasts and the boxer shorts hung low on her narrow waist. Sam slowly lowered his weapon. "Dean?" He said quietly in disbelief.

Dean's eyes were wide. "If this is one of your nightmares and you sucked me into it, I will so kick your ass." Dean tried for an angry tone, but failed. She looked again in the mirror and stared at her new body. She was a petite woman with shoulder length sandy blond hair. Dean covered her eyes and rubbed vigorously. "This is a bad dream. Wake up, Dean, wake up!" She shouted in her now high pitched voice as she let her eyes fall open again. Her heart sank in disappointment.

Sam continued to stand there and stare; his mouth hung wide open. Finally, he forced himself to speak. "What happened, Dean? What did you do?"

Dean whirled around, her face full of anger. "What do you mean, WHAT DID I DO? What the fuck, dude? I don't even remember coming back here. Why don't you tell me what happened. I thought I was with you the whole time!"

"You were!" Sam responded as he ran his hands through his sleep tousled locks. "Jesus, Dean." He said as he walked back into the main room.

Dean followed, stomping angrily. "Then how did I wake up with TITS, Sam?" Dean yelled as she grabbed her breasts.

Sam stared with wide eyes again as he found himself reacting to his newly (gorgeous) brother holding her breasts. His face felt flushed, so he quickly looked away. Dean was handsome as a man, and becoming a woman certainly had not changed that. He took a deep breath and tried to focus. "Look, man...er...Dean...I only left you once. I went to the bathroom. We left the bar after that and came back here. I put you to bed myself." Sam's eyes were pleading with her. "You've got to believe me."

Dean sighed as she sat down heavily on the bed. "Then...how the hell did this happen, Sammy?" She doubted herself for a moment. "Did I do anything stupid?"

Sam shook his head. "After you found out that the waitress wasn't there, we took a table and didn't talk to anyone else."

Dean stood up abruptly. "The waitress! Maybe she's a witch or something and got pissed off at me! Maybe she did this."

"Dean, I doubt that."

"Why? Because weird shit doesn't happen all around us? Do you have any better ideas, College Boy?" She walked up to her brother and looked up. The height difference between them was now enormous.

Sam had to force himself not to smile. Although she tried to look menacing, she just didn't have the same effect as the old Dean. She was simply too small and adorable.

"No , I don't." He answered after thinking for some time.

"That's what I thought." Dean said in a serious tone as she walked over to the chair and started to place her jeans on. She growled as she realized how big they were on her. "God damn it!" She exclaimed as she tried to roll the waist over several times. She also folded up the bottoms up as well.

Sam watched for a few moments before speaking. He was trying not to laugh. It took all his strength not burst out giggling. He cleared his throat, "Dean, where are you going?" He covered his mouth as he cleared his throat again.

"Where do you think I'm going?" She grabbed a bag and placed a bottle of holy water in it. "If the bitch is a demon, then I need to know. She needs to turn me back!"

"So, you're going to just walk in there and douse her in holy water?"

Dean gave him his best 'duh' look. "That or say God's name to her. And you don't need to remind me to say his name in LATIN." She added sarcastically remembering the time they fought a demon on an airplane.

"Dean, you can't go out like that." He said as he surveyed her appearance.

"Like what?" She answered oblivious to his implication.

He gestured at her. "Like that. Dean, you look like you're playing dress up or that you're from a homeless shelter. Your clothes don't fit and..." he paused as he looked up for a moment, "and you're not wearing a bra!" His face blushed.

Dean looked down at her white BVD t-shirt now stretched over her ample, but proportionally sized breasts. "It's not like I needed a bra before this, SAM! I'll just put my coat over me." She reached for her worn leather coat. She could probably now wrap it around her three times. She pouted as she realized this. At the same time, she looked up at her younger brother, who was trying with all his might not to laugh. "Don't you dare laugh at me!" She scowled as Sam started howling. He fell on the bed clutching his sides and gasping for breath. "Fuck you, bastard!" She started walking towards the table and tripped. Sam continued laughing until he was almost breathless, writhing on the bed.

"I don't need your help, shithead." She added as she grabbed the keys to the Impala. She grabbed her boots, not convinced that she was going to wear them, and stormed out of the motel room. Sam regained his composure and grabbed a pair of jeans, his coat, and shoes and ran after her.

"Dean! Wait!" He said as he rushed to the passenger side and got into the car beside her.

After catching his breath, he looked at her worriedly. Dean clutched the steering wheel tightly as her jaw clenched. "Look, I'm sorry. Let me help, okay?"

She turned to him with accusing eyes. "Have you gotten all your 'ha ha's' out?" Sam nodded as he started to dress. "Good, now let's go." She said as she started the car. With a quick glance at her brother to make sure he wasn't watching too closely, she reached underneath and adjusted the seat. She didn't give Sam time to comment. She placed the car in drive and tore away.

Dean sat in the car outside the bar chewing on her fingers. Sam had convinced her to stay in the car while he went inside to confront the waitress. Dean didn't like it, but acquiesced in the end. Her heart beat wildly as she waited for Sam to come out. After about twenty minutes she saw her brother emerge from the bar. She knew the answer right away when she saw the tight look on Sam's face.

The car door creaked open and Sam sat down heavily. His eyes were full of concern as he peered at his brother. Dean raised a perfectly manicured eyebrow and Sam shook his head. "She's clean. There's no demon in her, Dean." He said quietly. "I'm sorry."

Dean clenched her cheeks and said nothing as she placed the car back into drive. The car ride back to the motel was in an extremely uncomfortable silence. Sam stole glances occasionally at his brother. He worried when he saw no emotion over her face. They reached the motel and Dean got out quickly. She slammed her car door shut and walked to the motel room. After entering their dingy room, she locked herself in the bathroom.

Dean sat on the toilet with her head in her hands. She was trying to stay calm, but all she wanted to do was hit something. She knew Sam was concerned about her, but she could not face him right now. She was embarrassed and humiliated. Although she did not want to admit it, she was worried as well. She lifted her head when she heard a light tap on the door.

"Dean?" Sam's quiet voice carried through the cheap plywood door. "Come on...let me in..."

Dean's eyes watered as she heard the concern in his voice. She did not answer him and instead stripped and turned the shower on.

Sam stood outside the door, straining to hear any sound from Dean. All he was greeted with was the whoosh of the shower. He sighed and turned around and proceeded to sit on the bed.
Dean quickly washed up and tried not to be horrified with the changes in her body. She reached out and grabbed a towel. She towel dried her hair as best as she could and then wrapped herself in it. She stood in front of the mirror staring at a complete stranger. She slowly loosened the towel and gazed over her new body. She closed her eyes as she felt her anger building. After a few deep breaths, she reached for the door. Dean opened it slightly and asked Sam, "Can you hand me a t-shirt and boxer's?" Her voice was monotone. When the objects reached her hand, she thanked her brother and closed the door again. When she emerged, she sat down at the edge of her bed.

Sam glanced nervously at Dean. He wanted to help her and get her to talk, but he did not know how. He shifted as he sat on the bed. Watching Dean sitting there with damp hair and hardened nipples straining against her white t-shirt was making Sammy's jeans tighten. She was a vision. He knew he had to nip this in the bud. He stood and walked over to her.

"Dean..." He hesitated. "Please talk to me." He was taken aback at the pain he saw in her eyes when she looked up at him.

"What do you want me to say?" She asked.

"Anything." He replied.

Dean abruptly got up and paced. "I'm fucking pissed off! Is that what you want to hear?"

"If it helps."

"The one lead I'd thought we had didn't pan out! What the hell am I supposed to do now?"

"Well, WE will figure something out, Dean. We always do." He tried to sound reassuring. He paused for a time before continuing. He watched as Dean now stood in front of the window, staring out into the night sky. "We could...I mean it might help...we could try to call Dad."

Dean whipped around; her eyes wide and full of fear. "NO!" She said abruptly as she sprinted over to him. She grabbed his arms as she looked up at her little brother. "Don't call Dad, Sammy...he can't see me like this...please."

Sam nodded his head vigorously as he gently grasped Dean and stepped back from her. She looked so upset that she was practically shaking. "I won't. I promise."

She seemed to calm down with his reassurances. After some time, he watched as she got into her bed. He was amazed as he saw her tiny body get underneath the sheets. Sam was felt an overwhelming need to climb into bed with her and hold her. But, he knew Dean would not allow that. Instead, Sam proceeded to his own bed. He lay staring at the ceiling for a while before he spoke again. "You know, Dean. It's okay to be a little scared."

She rolled over to face him. "I'm not scared, dude."

"Maybe not. But it's okay if you are."

"I'm not!"

"Okay! Okay! You're not." Sam huffed and took a deep breath. "We'll get through this, Dean. I promise you."

Dean didn't answer right away. "Yeah, I hope so." She tried to sound sarcastic, but there was a hint of hope in her voice. She closed her eyes to will herself to sleep.

Sam lay watching her. He waited until she fell asleep. Once he saw the rhythmic rise and fall of her chest, Sam knew it was safe for him to go to sleep.