Mercy was shocked when Dean stormed into the room with an irritated Sam walking behind him. She was fairly sure she had never seen Dean to red with anger before then and she really wasn't sure she wanted to know why.

But it would seem that Dean wasn't going to let her have a choice in the matter.

"Sam has been using his powers again!" He directed at her.

"And that's a problem how?" She asked. Sam was psychic, sure it was thanks to demon blood, but it really wasn't worth this much palaver. It hadn't hurt anyone yet and it wasn't like he had much of a choice when it came to having said powers.

"It's a problem, because he's been hanging around that bitch Ruby trying to make them stronger!"

Okay, yes, that was a problem.

"Sam, what the hell are you thinking?!" She spun to look at said man. "Since when has anything involving her been a good idea!"

Sam threw up his hands and sighed dramatically.

"Since when has having another weapon been a bad thing? We need all the help we can get to stop these seals from breaking!"

"And you think Ruby doesn't want them to break?!" Dean interjected.

"Oh, come on Dean." Sam took a step closer to his older brother, "She's trying to help!"

"Yeah, she's helping herself! Because that's what demons do, Sam! They're all about gain and don't care what happens to us on the way!"

"She's different from the other demons! She doesn't want the devil out; the enemy of my enemy is my friend!"

"Don't go quoting that crap! We have enemies and friends. Sorry if I've got it wrong, but no hunter worth their crap would call a demon a friend!"

"There are exceptions in all cases! What about Loraine? She was friendly!"

"She wasn't a demon Sam. They're different!"

"How Dean? How is it any different?!"

The two men were slowly getting closer and closer as they screamed themselves blue and Mercy knew that if this continued there was going to be a fist fight. So she quickly inserted herself between them and pushed with all her strength.

"That's enough!" The silence that followed was only broken by the harsh breathing from all three.

A few beats passed as they calmed themselves down. Yelling wasn't getting them anywhere, but they weren't sure what else they were supposed to do.

"Sam. Please. We're family, tell us everything from the start and we'll figure everything else from there." Mercy spoke, hoping that she hadn't just made the biggest mistake by suggesting it.

They all sat, tense as they listened to the story, and Mercy had never felt so stupid in her life. Her brother had tried to tell her about this before and she completely wrote him off.

The blood, however, was the worst part. She had thought he had learnt his lesson with the whole yellow eyes debacle, but apparently didn't. And she felt like it was all her fault.

They were all hurting after Dean's death, and Mercy most definitely didn't handle it well. But she had had Gabe. Who did Sam have? No one, until that bitch Ruby came along and gave him support in the wrong way. Power never stopped grief. But Sam hadn't known that.

Oh how her hand was itching. And for once, it wasn't to whack one of her brothers' head. She just really, really wanted to slog that pompous angel Uriel into next Sunday. He just rubbed her the wrong way, not to mention had no respect for anyone in the room.

She could kind of understand his reaction to her and her brothers. Winchesters were definitely not known for their respect and manners. But his general treatment to Castiel was so not on.

So she may have grown fond of the clueless angel over the course of the whole trying to save the world. So what, he was just another one to add to her little family.

They really needed a few more girls in the family of theirs. Honestly, there was only so much "manliness" that she, Ellen and Jo could deal with before losing it.

But back to the main issue, here they were, working their asses off trying to find the witch who was trying to summon some douche demon that would also break another seal. So yeah, she wasn't quite so sure why this dick with wings was interrupting their research time to tell them to hurry up with research, counterproductive much?

God did her fist itch.

And then he called Sam an abomination. That bitch was going down.

It was safe to say that they all (other than her) were surprised when the punch connected and actually looked like it caused some sort of damage. Her left slugger had always been her pride and joy. The tubby angel glared at the female hunter in shock and hatred.

"How did you…?" Castiel asked, wide eyed at the scene.

Mercy smirked at the seething angel before her and shoved her face into his, leaving very little space between the two. If he felt so negative about "Mud-Monkeys" then a good old dose of "contamination" should really help rub that salt into the wounds.

"As luck would have it, my ring is made from the same stuff as your blades. I heard that stuff really stings you feathery bastards. No offence Cas." And no offence Gabe, she thought.

"Now, you listen here you giant dick. My brother may have made some questionable choices in the past year, but I'll have you know making mistakes is just what humans do. He is no more an abomination than you, because any asshole that thinks killing over a thousand people is just a means to an end really doesn't have any say when it comes to others actions."

Said asshole's glare became progressively darker as she continued her little rant. A silver blade had appeared in his hand and it looked very much like he was going to use it happily.

"You Mud-Monkey-" He started.

"And we're back to that crap! I'm sorry, but where does it say that angels are any better than humans. If I remember correctly, we were all created by the same being, so please do tell me that we're anything but equal."

Mercy knew she had said something wrong when Uriel loosened his grip on the blade and gave her a mocking grin. Feeling strangely small, she took a few steps back to stand with her brothers knowing they would fight with her.

"Those are strong words, for a human" he spat the word like it tasted foul, "who wasn't even created by my father."

And with that, the giant dick disappeared in a violent flutter of his wings.

The three humans simply stared where he once stood in shock and confusion before turning to the remaining angel for answers.

"Uriel was out of order telling you that. However, we cannot find any evidence if what he says is true or not."

"No, you wait right there you douchebag!" Dean yelled, "What the hell did he mean by that?"

Sam also added his part, "It's not possible to not be created by God, right? I mean, he created everything!"

Castiel tilted his head, most likely receiving whatever stupid order his superiors had for him now. This sent a flash of anger shoot through her. What were all the angels keeping from them, from her?

And if someone like Uriel knew about it, then Gabe would sure as hell know. So why hadn't he told her? Was it really that bad that he didn't want her to find out?

Mercy was brought back to the present as Castiel began to explain himself.

"We were given explicit orders not to tell you anything, but now that Uriel has gone against them, my superiors have decided that you are to know. In the simplest words, Mercy Winchester was never meant to be born; she was never supposed to exist. There is plan for which humans will exist and it has never been wrong before this."

Mercy quickly found a seat before her legs could collapse under her. Just seconds ago she had felt strangely powerful, but how were supposed to react to being told something like that.

"How am I here then? If God never planned for me to exist, how am I here?!" She almost screamed.

She had finally found her place in the world to only find out that she was never supposed to be in it to begin with. She was never supposed to have her family, never meant to meet Gabe, and was never supposed to even be standing in that room at that moment in time.

"Talk about existential crisis." She tried to joke, but it came out flat.

"We do not know." Castiel spoke. "But your presence has created ripples in the universe that has my superiors concerned. We no longer know what the future holds."

"So why haven't you killed me yet?" She whispered. The alarmed looks from her brothers told her exactly how they felt about that subject.

Sam and Dean tensed and slowly reached for the amulets around their necks. Ready to resort to drastic action if need be.

"We do not know if that could lead to a worse fate."

Damned if you do, damned if you don't,

Mercy was getting sick of this now. If life kept giving her curve balls then she was going to give as "good" as she got.

Always think positive, Mercy thought, although it sounded suspiciously like Gabe. So think positive she was.

"Well, the answer to why I am here is simple." The two men and one angel looked at her with curiosity. "I exist because I'm not supposed to. Who ever heard of a plan that went perfectly?"

Think positively and kick life in the ass. That was her new motto, and she was going to stick to it.

"You okay?" Dean said as he sat next to her on the bench. They watched the children play as she thought about it.

"For someone who was told that they shouldn't exist? I'm doing alright."

The look from her brother made her sigh and let go of the façade. Going back to old habits wasn't going to do her a whole lot of good.

"Basically, it makes me wonder why I am here at all. But most people feel that way. The worst part is thinking about how the world would have been if I really hadn't been here."

"Sam and I would definitely be dead." Dean stated it with such emotion that Mercy knew that he really felt that way.

"You've both already done that, so not much would change there. But that's not what I meant. If I hadn't been here, you would have had to look after Sam in my place. And that scares me." She quickly continued when she saw Dean open his mouth. "Not that I mean you'd do any worse than me. But, no one deserves that, to be a kid and be responsible for such a small fragile thing. It scares me that my own little brother would have to go through all that at only four years old."

"You did your best, and there's something neither of us ever said. Sure, we always knew you shouldn't have had to raise us and we did our best to protect you like you protected us. But we forgot something." Dean put his arm around his sister's shoulders and pulled her in for a strong hug.

"Thank you, for letting us just be kids. Thank you, for being there for us. Thank you, for protecting us." Mercy looked up at Dean and felt his tears fall onto her face. His voice was shaking with the emotion and conviction of his words.

"Thank you, for being out sister." He pulled her even closer.

"Thank you."