Whoo, 12 chapters, 32 pages, and still going! Thanks for all the reviews and support! crazybookworm95, cold kagome, vampyfreak, many hugs to you! And thank you for that lovely review astafir, it made my day! Okay, on with the story :D

Sam awoke early the next morning. Sunlight had just started to stream in through the window as he opened his eyes. When he closed his hand over empty hair, he panicked, thinking Dean had gone. He sat up, breathing fast, to find his friend asleep on the floor, his head resting on his arm. Sam breathed a sigh of relief. He wondered if he should wake Dean up. The floor looked cold.
"Dean?" he whispered.
The effect was immediate. Dean blinked his eyes open, saw where he was, and sat up quickly. He glanced up at Sam, and worry crossed his face.
"You alright?" he stood up, then sat back down in the chair, concern spread across his face.
"M'fine. You were on the floor"
Dean smiled. Just then, the door opened and an unfamiliar nurse entered quietly. She frowned when she saw Dean.
"Should you be in here?" she asked.
"Would you like to try and get rid of me? Go ask the last doctor that tried to remove me from the room. He's probably being treated for a shattered nose. Shattered, not broken." Dean shot back.
The nurse, a thin woman with brown-blonde hair, contemplated that thought for a moment, as if decided if he were serious or not. In the end, she decided against doing anything herself, and busied herself with checking Sam's IV and assorted machines. Sam tensed a little when she came near, but knowing Dean was beside him calmed him. The boys waited in silence until the nurse was done.
"Alright, Dr. Mills will be here in a moment to talk to you Sam, okay?" the nurse said, the question sounding more like a statement. Sam just nodded, but Dean cleared his throat.
"Can Sam get a different doctor?" he asked.
"Why?"
"Because..." Dean didn't get to finish before the door opened and Mills walked in. As he did, everything went to hell.

Dean wasn't sure if it was from the trauma of the previous night or the fact he looked strikingly similar to Jason. Whatever it was, Sam took one look at the blonde doctor and screamed. He kicked and flailed and tried his best to run. Dean grabbed him and muttered assurances in his ear.
"Sam, calm down, just calm down, everything's gonna be fine, it's okay," Dean said. Panic was radiating so strongly from the younger boy that even Dean started to feel a bit worried. Mills, unsure, stepped back.
Sam closed his eyes and dropped his head onto Dean's shoulder, mumbling incoherent ramblings. Dean rubbed his back, turning to face Mills. His glare said everything he couldn't or wouldn't say in front of Sam.
"You're terrifying the poor kid. And I'm not surprised, after last night. Get Sam a new doctor, or you'll have to deal with this every time you walk into the room. And me," Dean hissed.
Mills, every part of him wanting him to helping his patient, torn between how to do it, glanced at the nurse before leaving the room.

"It's okay, he's gone..."
Sam didn't reply, just shook with fear and tears. Dean stayed quiet, just calming Sam down. The nurse left in a hurry, mumbling something under her breath. When they were alone, Sam looked up. Dean bit his lip to stop himself from saying something when he saw the expression of a child on the thirteen-year-old's face. Sam's gaze wandered to the bandage just visible under Dean's t-shirt, and started. A memory seemed to replay in his eyes, and Dean tensed.
"I'm sorry."
Dean stared. That was unexpected. He frowned, shifting so he could see Sam better.
"What do you mean?"
"He stabbed you."
"Yeah. That's not your fault."
"He told me... he told me not to yell. He said... if I did then..." Sam paused for a moment, fighting back another wave of uncontrollable emotion "He'd kill whoever was at the door. He'd do it in front of me, then kill me. He told me not to call for help..."
"Sam!" The kid was shaking again, every muscle trembling. His head dropped onto Dean's shoulder. The elder rested his chin on Sam's head, closing his eyes as he comforted the younger.
"I could have... have killed you," Sam hiccupped.
Dean almost laughed at this. Sam had no idea. He could have taken Jason down with a couple of punches.
"No way Sammy, I wouldn't have let that happen," he said, leaning back and looking at Sam. The kid turned to face him.
"Still... it could have...I saw the look in his eyes..."

Right when Dean opened his mouth to reply, someone chose that moment to enter the room.

Dean swore silently and turned to see who had entered. When he saw, he could do nothing but stare, his arms dropping from their protective circle around Sam. Sam started in surprise and turned to look. His jaw dropped slightly.
"Sam?" the blonde woman said, her voice cracking with shock. Tears started to fall. Dean stood up.
"No. No, no no..." he trailed off.
The woman stared at him, as if recognising him but not quite. Dean swallowed.
"Mary? No, no..."
Mary jumped, shocked. How did he know her name? Why was he looking at her like that?
"Who the hell are you? What are you doing with my son?" she demanded.
Dean walked right up to her, standing only a few paces away.
"I'm Dean. I'm..." he tried to say more, but he couldn't. Instead, he ran, leaving Sam calling out his name.

/\/\

He ran down the hall, not caring about the massive jolts of pain shooting through his shoulder. He felt something warm and sticky start to dribble very slowly down his back, but he ignored it. The worst pain was in his chest, where his heart beat painfully against his ribs in an attempt to free itself.
No, he can't of. He hasn't lied, he's never lied to me. Not like this, not about something so big. He can't have lied, he can't have walked away...She can't be, she can't be the one from the dream, no.

He was so wrapped up in his thoughts that he didn't see the doctor before he ran into him, sending both of them crashing to the floor. The doctor scrambled to his feet quickly, but Dean just sat there, unmoving. The doctor saw the blood on the bandage, the stain on the t-shirt.
"Hey, kid? You need to come with me."
Dean didn't move, just sat there staring at the floor, a tear falling.
"He lied to me. I can't believe..."
Dean blocked out the doctor's voice, letting his shock envelope him. Betrayal stabbed at his heart, and his muscles felt weak, like they were going to give way at any moment. He wasn't sure how long he sat there, but eventually a piercing pain in his arm brought him to his sense, and by the time he realised what had been done, it was too late. The sedative worked its way through his system and he tripped into a darkness full of screaming, fear and blood.

/\/\

"Sam? What did... what did he do to you?" Mary asked, kneeling by her son's bedside. He refused to look at her, instead facing the chair where Dean had been sat a moment ago.
"I don't wanna talk about it," he mumbled.
"I am so sorry Sam, I'm sorry I didn't know, I'm sorry I couldn't help, I'm sorry I married the bastard...I know that being sorry doesn't help, but..." Mary rambled on for a moment.
Sam interrupted her, "Do you think it helped when I said it?"
Mary was silent, tears falling as she tried to comprehend what her husband had done to her son. She took in the fading bruises, the cast around his arm, the bandages around his wrists. The police had said he'd been badly beaten and was close to death from blood loss. Something had cut into his wrists and ankles and had nearly killed him...
"You know who he is, don't you?" Sam said quietly.
Mary glance at him, confused.
"Dean. You know who he is. You know what he is."
"What? I don't..."
"His last name is Winchester. Just like ours before you married..." his voice wobbled and broke off before he got out the name.
Mary felt like she'd been kicked in the gut. The name had been familiar, but there were many kids called Dean. She hadn't connected the two, unlike Sam.
"It's not like Winchester's a common name."
The woman struggled for something to say. But what do you say when your son finds out you've been lying to him for thirteen years?
Sam turned his head, and Mary flinched. Not just at the sight of the yellowing bruises across his face, but the expression of complete and utter betrayal. She'd betrayed him so many ways, she thought. She was supposed to protect him, and she didn't. She was supposed to never keep the truth from him, and she had. In more ways than he realised.
"How come you never told me?"
Before Mary could answer, Sam turned away from her, pulling his broken arm close to his chest and ducking his head. Mary's heart beat painfully, a wave of emotional crashing over her. Fear, worry, hurt, shame, self-loathing, hate, concern, shock; it all swept over her and clamoured for priority in her head. She stood up and stepped back, for the first time in her life unsure of what to do.

/\/\

Dean woke with a pounding headache. He groaned, feeling his shoulder throbbing. He blinked, finding himself staring up at the ceiling of his room. What am I doing here?
The memories flooded back, and as soon as they did there was that pain in his chest. He bit his lip.
"Dean? Are you okay? What happened?"
Dean shuddered at the familiar voice. He restrained the worst of his temper and looked at his father sitting beside him. The worry and concern etched on his face showed he had no idea of what Dean knew. Dean glared at him coldly.
"You lying son of a bitch. How could you lie to me like that?"
Shock dropped like a ten-tonne weight onto his father, and he didn't speak for a moment. Eventually his face set in blank grimness and he spoke.
"How did you figure it out?"
"Oh, the spitting image of the woman in my memories just walked into Sam's room. Sam called her Mum. I connected the dots," Dean spat.
"You knew. You knew the second I told you about Sam, and you didn't say anything. You knew who he was when I told you about him being beaten up by his dad. You knew who he was when he called for help. Why didn't you do anything? How could you just stand there when your son was being beaten to death by a sadistic psychopath?"
"Don't accuse me, Dean. You have no idea."
"No, I don't! Because for thirteen years you lied to me! You said it was just you and me! Why?"
"Because I couldn't deal with it Dean! She left, and that was the way it was supposed to stay."
"This is about Mum? You let Sam almost die because you didn't want to face Mum?" the shock outweighed the anger in Dean's voice.
"I didn't want to believe it," John said quietly "I didn't want to believe it was that bad."
"Well it was, and he nearly died because of you," Dean hissed.
John ran a hand through his hair. It was all crashing down around him now. Conflicting emotions raged, vying for his attention. Dean had no idea. He'd wanted so many times to see Sam again, but the knowledge he'd have to see Mary had stopped him. They hadn't left on the best of terms. In fact, they'd left after three hours of yelling and screaming at each other. They'd argued over the kids, over what they were going to do. He still wasn't sure who'd come up with it, but one of them had suggested the fateful split. And every day he kicked himself for agreeing to it. Every day he relived that moment when he picked up a worried toddler, holding him close as Mary gently lifted Sam from the cot and stormed out. His heart was torn as he watched her drive away, heard Dean ask, "Where's Mummy and Sammy going?". It'd been patched up over the years, by throwing himself into hunting, the only thing he could do. Now it was all coming apart, his lies were coming out, his cowardice now on show.
"That baby. The one I keep dreaming about. It's Sam, isn't it?" Dean asked, sounding as though he already knew the answer.
John stood up, looking down at his oldest son. His anger was growing, taking over. He had to leave before he did something to his son he'd regret. He laughed drily inside. He'd done plenty of that already.
"Dad, don't you walk out on me."
John walked towards the door.
"Dad! Don't you dare walk out that door!"

John shut the door quietly behind him.

The revelation! Finally! So, what did you think of the latest chapter? Reviews loved and welcomed! Hugs to those who review XD