"That doesn't sound good," Sam says when he gets out of the Impala parked out front of his temporary home and looks over to the house they're occupying. He can hear Lizzy's angry voice from inside it and he knows that at this point Dean could probably use his assistance, or another person to take some of the heat at least.

"Should I come in?" John asks out the rolled down window.

"I'll leave that up to you," Sam answers, not taking his eyes off the house as he grows more worried. "When Lizzy gets mad, it isn't good… at all."

"Well now it sounds like you could use the help," John comments, getting out of the car to join Sam. "You boys stay here. I'll be right back."

"Yes sir," Dean complains, tired of always waiting in the car or the motel.

"Just don't say I didn't warn you," Sam says over his shoulder to his dad while jogging towards the house.

Sam pushes through the side door, walking quickly through the house towards the sound of heated voices, John hot on his heels. They come upon Lizzy and Dean standing on opposite sides of the living room.

"Why did I have to find this shit out at all!?" Lizzy loudly yells, her emotions taking over like they always do. She's so damn emotional it's exhausting, Sam thinks momentarily. "I don't understand how this helps anything!"

"Lizzy, you gotta quiet down," Dean warns with a tentative step in her direction. "There are neighbors a few houses down. We don't need any cops coming and finding us."

"Who gives a shit!? My world is fucked! My mom's a whore, Dean! A total whore," Lizzy shouts. "And my dad isn't my dad! What the fuck!?"

"So you found out, huh?" Sam sadly asks after she makes it clear that she did. Unfortunately, he realizes his mistake after it's been made. Lizzy freezes, her eyes staring icy daggers into him, completely ignoring John's presence in the room. She holds very still while her anger builds to a whole new level at what he says.

"You knew," she spits out at him with a low, scary tone. She looks over to Dean whose face gives him away instantly. She whips her arm out to point accusingly at him with a dropped jaw. "So did you!"

"Way to go, Sam," Dean sarcastically says to his brother who is now standing next to him. "Good job."

"You both fucking knew!?" Lizzy shouts, taking long fast strides towards Dean as she does. "You let me walk into that diner blind!?" She shoves him hard in the chest, making him back up a few steps. "You didn't even warn me! What the fuck, Dean!?"

"Lizzy, it was only a theory. We weren't sure," Sam tries to explain, but the fire growing within her won't hear it.

"Oh no!? You weren't sure!?" Lizzy turns her attention to Sam, her fists already balled and ready.

"No," Dean quickly returns, trying his best to get Lizzy's ire off of Sam. She was his girl and if she's gonna try and pummel anyone it'll be him. "We had a clue but there was no proof so we didn't say anything. We didn't want to burden you for no reason."

"Oh yeah, good move," Lizzy returns angrily. "This is so much better!"

"Seriously, calm the fuck down," Dean tries one last time.

"Nice job on these two, John!" Lizzy finally recognizes the now nervous man. "A couple of conversationally stunted assholes you created here!"

"Hey! Whoa!" Dean holds his hands out at the insult, ready to move in if she speaks that way to his father again. He knows she's angry, but she's about to take it too far. "Little too much, L!"

"I would never do this to you two!" Lizzy shouts again while looking between the younger Winchesters. "I have been nothing but honest with both of you since the day we met! I would have told you the minute I found out!"

"And in hindsight we should have too," Sam tells her. "We feel awful about this. We absolutely should have told you."

"Damn straight you should have told me!" Lizzy shouts. "I had to find out, completely unprepared, that Paul was never my actual father! The man I called dad every fucking day of my life was completely betrayed by my mom and Brian is my fucking father!"

"Lizzy, I'm sure they meant well by not telling you," John speaks up, feeling the sudden need to protect his sons from her ire.

"They meant well? My God damned neighbor is my father, but your kids meant well! Shit! My poor father. And Lou's mother, oh God. She didn't deserve that! She was like my second mom. I'm… I'm…" Lizzy's face drops suddenly and it softens for the first time since they got back from the diner. The air in the room grow thick while the three men wait. She sighs in a defeated tone. "Shit. I'm Louie's sister."

She says it quietly, the discovery almost audibly shattering her heart into pieces. Sam and Dean don't move a muscle. Lizzy's anger has a tendency to burst through when least expected so until they're sure they aren't about to get socked, they give her a moment.

"She was my real sister," Lizzy says evenly. "My sister."

She hadn't let herself think about it this way before. The deceit and lies her mother lived every day and the anger Lizzy has over it clouded her ability to really think about what having Brain as her biological father really means. It means her father isn't her real father, it means her mother is a cheater, but most importantly it means that she has a little brother and a very important sister.

"It's not so different, L," Dean tries to rationalize in a calmer tone. "You already considered her like a sister, right?"

"Right," Lizzy absently agrees, only partially hearing him.

"Now, it's just true," Dean explains. "You loved Lou and you still do. This doesn't change anything. You still would have had the same exact relationship with her."

"Ew," Sam suddenly says aloud, surprising himself with his vocal response to what he thinks of in the moment. The three other people in the room look over to him with confusion. His face pales with his mistake. "Ah, sorry. I was… was just thinking…"

Lizzy looks over to him with utter wonder, shrugging her shoulders and holding her hands out to the sides. "Thinking about what?"

"I just," Sam tries to get out. "You're relationship with Lou… it's nothing."

Dean rolls his eye when he catches on. Good going, Sammy, he thinks to himself. Way to bring up probably the worst aspect of this revelation at the worst possible moment. That was not something Lizzy needed to think about right now. And before he'd always thought that out of he and Sam it was his mind that was in the gutter.

Lizzy's brain flying at a mile a minute, she can't fight through the mess to even begin to figure out what he's thinking about. "It's obviously something."

"It's not the right timing for it," Dean tells her, trying to get her off the subject.

"When is it ever?" Lizzy rebuts. "What the hell, Sam. You're grossed out by Lou being my sister? I don't…" Lizzy stops mid-sentence and closes her eyes. "Oh fuck no." It hits her like a punch to the gut. "I wanna puke."

"It's fine, you didn't know," Dean immediately excuses, doing what he can to calm her.

"Oh shit," Lizzy laments when she covers over her face with her hands. "I can't believe we did that."

"What the hell is going on?" John quietly asks Sam out of earshot from Lizzy. He's so confused it's killing him.

"You don't want to know," Sam leaves it. He'd rather not explain Lizzy and Lou's past experiences with his father. Didn't seem right.

"It's really not that big of a deal," Dean once more tries to lessen the blow for her as he puts his hands on her shoulders.

"Yeah. I mean, most blood related sisters have threeways with guys together," Lizzy says it aloud with such anger in herself. "Totally normal."

John's eyes fly wide. Who the hell is this person his sons are involved with?

"But you told me it wasn't so… uh… involved… when that happened," Dean tries to lightly explain without too much detail. After much prying over time, Lizzy had informed him a little bit about what had gone down the years before when the few sexual encounters the two girls got into together had happened. Sounded more to him like two people having a good time with a third lending a hand here and there. It wasn't so bad. "L, none of it was over the top or crazy."

"Involved enough where I feel like the worst person ever," Lizzy laments with a heavy and guilty heart. Without another word, she sits down on the couch and folds her hands in her lap, staring blankly at the plain white wall across from her. She zones her mind out, finding it easier to drill holes into the white abyss in front of her than to allow it to think. Her thought process stops temporarily and she sighs loudly.

"L?" Dean calls out to her after a few moments of complete silence from her. She's scaring him. This isn't her usual way of dealing with heavy things. She punched shit or chewed someone out, or hell, she sometimes dragged him off somewhere to take her frustrations out on him with some good old-fashioned angry sex, but she never did this before. She never did… nothing. "If this is a mental breakdown, you gotta let me know," he half-jokingly tells her.

Her expression changes to a concentrated one as she tilts her head and closes her eyes. She has no idea what she's concentrating on, but something in her makes her do it. She feels her emotional stress and pain being projected outward and suddenly Lizzy knows he's on his way.

The flapping of wings are heard and suddenly Castiel is standing in the corner of the room looking over at her. His concern is clear on his even more stoic than usual face.

"You're hurt," Castiel more states than asks, hand grasping firmly to his blade.

"Holy shit!" John jumps when Castiel pops into the room out of thin air. It shocks him and he reaches for his flask of holy water, but Sam interrupts him.

"It's ok," he tells John, a hand on his forearm to stop him. "He's the angel Lizzy told you about. Same team."

As John watches with wide eyes, Castiel ignores John's being there.

"Where are you hurt?" Castiel asks taking steps toward her, ignoring all others in his presence. She was his priority in the moment and if she needed healing, that's what he is going to do.

"No, I'm not hurt," Lizzy explains up to him with confusion. "And I didn't pray for you either."

"I felt you," Castiel explains. "I felt your pain. You seemed injured."

"I ..I didn't mean to call out to you, Cas. I'm sorry. I just…" Lizzy trails off, unsure of how to even explain what she's feeling and thinking.

"I'm failing to understand," Castiel admits as he walks to stand right in front of her seated form. He drops a hand on top of her head, closes his eyes and concentrates. "You are indeed hurt."

"No, I'm fine," Lizzy tries again, hands now checking herself for injury as he's making her second guess herself with his certainty.

"No you are not," Castiel says, taking a rigid seat next to her. "You're hurting a fair amount. But it isn't physical. It's purely emotional. You hurt this way when Lou died. And when Dean was sent to hell."

"Hell?" John's eyes fly wide, staring over at his eldest son. "Dean!?"

"Later," Dean tries to brush off in a hard tone. That was not a conversation he wanted share with his past father, especially when to him he's just his eleven year old son. No, that conversation is far too much.

"Where you there for me back then too?" she questions, getting the feeling he's been there for her without her knowing quite often. Looking to him with innocent and saddened eyes, she asks again. "Like when I was a kid? Where you around?"

Castiel just looks at her thoughtfully for a moment, his blue eyes searching her face. "Yes, I was. I see you have done your research."

"Why is this happening, Cas? Why do I have to know all this?" Her voice elevates and her eyes watering. Castiel's face wrinkles, as if the pain she feels is his own. Dean and Sam are taken by surprise. Normally the angel was a blank slate, his face never registering any form of emotion.

"I felt you deserved to know," Castiel explains to her.

"But why?" Lizzy begs to him, eyes spilling over. "Why couldn't I think Paul was my real dad? Why do I have to know that Lou is my sister? It hurts so bad, Cas. Why?"

Castiel drops a hand over his chest as he sits alongside the crying woman.

"Elizabeth, I have been with you your entire life," Castiel explains. "The last thing I want for you is to be upset or hurt. That is not my aim, though I feared it would be a side effect."

"Is that your way of saying sorry?" Lizzy asks incredulously. Castiel just looks to her, head tilted to the side.

"Yes."

"Well you suck at it," Lizzy sobs as she peers over to Castiel. "I know you wouldn't try to hurt me. I know. But I just don't want to in on this stuff."

"Would you think it fair of me to always keep you from the truth?" Castiel wonders. He's let her in on almost everything, most of the secretive parts of her life, because she did in fact deserve to know and after following her his whole life he had been sure she'd prefer to be informed rather than in the dark.

"No," Lizzy tells him after contemplating the question for some time. "You're right, I should know." Lizzy pauses, closes her eyes. "Was she supposed to die? Like that?"

"I assume you speak of Louise," Castiel returns.

"Yes," Lizzy answers. "Was she supposed to die before we found this out?"

"You never were supposed to know," Castiel explains. "Heaven's plan does not include either of you ever finding out about your familial bond." Castiel sighs and reaches to take Lizzy's hand that is resting on the couch beside her, Lizzy surprised when he does. "It has been the most difficult part of my duties over the past twenty-six years. I know the love you each had for the other. I wanted you to know, but I was always denied the ability to let you in on it. I apologize for that. I should have…"

"Done exactly what you did," Lizzy finishes for him while looking down at their interlocked hands resting on the couch within the space between them. "Don't blame yourself so much. As much as I am hurting, you did the right thing."

"Yes, well," Castiel brushes aside the understanding moment. "And no, Lou was not supposed to die. Her death was a surprise to all of us."

"So not everything is planned out?" Sam pipes in from the sidelines.

"Most things are not in fact preplanned by heaven," the angel confirms. "Just certain people and certain events have the helping hand of my father… and in turn angels like me. Believe me, Lou's death was not my father's doing. In fact, we were all highly disappointed when that happened."

"Why?" Lizzy asks with a little alarm.

"She…" Castiel pauses, guilty eyes looking to Sam briefly before returning to Lizzy's. He can't look at Sam for this one. He felt too badly for him. "She has half of your bloodline and all the knowledge you do. She made for an excellent backup plan."

"Backup plan?" Lizzy asks. "Backup for what?"

"For you," Castiel explains cryptically. "She could never be as strong as you but if need be she could take your job if necessary."

"The job you won't tell me about," Lizzy remarks and gets silence in return.

"But you can bring people back, right?" Dean adds in. "I mean you yanked my ass outta the pit. Can't you just do the same for Lou?"

"My father has to command that and the task would be quite difficult with where she is," Castiel answers. "Although, I would be willing to do it. Lou would still be here if I had any say. I truly believe she deserves a second chance."

"Me too," Lizzy remarks quietly. "What now?"

"Now, we get you back," Castiel tells her while standing. "You have learned all you can here and the other angels will be thrown off if I return you now."

"But I still don't understand so much," Lizzy pleads. "I mean, why? Why are the Winchesters here? Why don't… oh shit!"

Lizzy and Castiel stand and look upward at the same time, causing Sam and Dean fear.

"What is it?" Dean asks with alarm watching as Castiel tightens his grip on his sword, looking at the ready to fight.

"Cas was followed," Lizzy tells them. "And they're fucking pissed off."

"Stand together, quickly!" Castiel loudly commands.

Lizzy reaches out, taking Dean in one hand and Sam in the other. Dean peers over to John one last time, exchanging a look to let him know he's sorry they had to go so soon.

"Get him back?" Dean asks of Castiel, wanting to ensure his father's safety.

"Of course." Castiel's hand moves towards Lizzy, ready to fly them back to their own time, when he stops cold.

"What's the hold up?" Dean asks quickly.

"No!" Lizzy suddenly shouts, turning sharply to John. "John! Are Dean and Sammy out front!?"

Without answering, John is sprinting for the side door, backtracking quickly out to the front yard. He stops the second he steps out of the house, fear gripping every nerve in his body when he sees a stranger standing between him and the car.

"Hello, John Winchester."