Suggest by lunaaprilhoran 
Imagine you get diagnosed with cancer but Cas lost his grace so he couldn't heal you.

You laugh punching your brother in the arm playfully. Sam lifts you up carrying you to the living room on his back.

"So I say we have some pie for dinner," dean suggests clapping his hands.

"Dean we cant have pie for dinner all the time," you comment making Sam laugh.

"Oh hush," Sam sets you down at the table handing you a paper plate.

~~~~~~~~~~~Later at night~~~~~~~~~~~

You whine holding your stomach closing your eyes.

"Dean!" You whisper yell staring to cough up blood.

"Sam!" You whine still not loud enough for anyone to hear.

You move one leg off the bed trying your hardest to get up. You finally get up holding onto your nightstand. You get a sharp pain in your stomach knocking over the lamp that stands on your nightstand.

You fall to the ground clinching your stomach crying. Your door swings open and your brothers rush to your side.

"Was it the food she ate," Sam asks Dean scared.

"No I- I don't know," Dean panics picking you up and running towards the car.

When you get to the car Dean carefully places you in the back, while Sam sits on the other side of you. Dean shoves the keys into the ignition and speeds off towards the hospital.

You grab Sam's hand squeezing it as the pain starts to become unbearable.

"You're going to be okay baby," He smiles trying his hardest not to cry.

You can hear Dean whisper a prayer to Cas as he continues to speed down the road swerving around cars. When you finally arrive at the hospital Dean grabs you carrying you in the ER doors.

"Help! Please," He yells and nurses run over to you.

"Get a gurney," you hear a lady yell putting a cold piece of metal against your chest.

They place you on a gurney running towards the closest OR. You see a bright light then an oxygen mask come close to you. That's the last thing you remember before it all goes black.

~~~~~~~~~~~~Hours later~~~~~~~~~~~

You wake up to a beeping sound along with whispers coming from the hallway. You blink a few before things become clearer. You move your head to see your brothers come in smiling.

"Hey there princess how you feeling," Sam takes a hold of your hand sitting beside you.

"I hurt," you manage to get out your throat dry.

"I know baby, here drink this," He holds up a glass of water to your mouth.

You take a big sip before laying back down.

"What happened," you ask just in time for Dean to walk back in.

"Hey bug you're up," He smiles pushing your hair back from your face.

"Hey look who's awake," a man in a white coat walks in with a clipboard in his hand.

A nurse follows behind changing bags on the IV. She raises your bed into a sitting position smiling at you.

"What happened," you ask again wanting an answer.

"Well when you came in your appendix burst which caused the pain you endured," He starts off coming close to you.

"So when can I get out of here," you ask leaning forward while he checks your heart.

He looks down walking back in front of the bed. He nods at the nurse who closes the door behind her.

"Y/N, while we were taking out your appendix we found a growth near your colon so we investigated more and saw that it had grown into your liver. I'm so sorry but it has reached stage IV," he explains and your heart stops.

"Why can't you take it out," Dean asks standing back up.

"When the cancer has progressed this far radiation will help but not allowed, and surgery won't do much to help, I'm so sorry,"

You look down at your hands fighting back tears.

"How long do I have," you speak up your voice cracking a little.

"No you're going to live until you're 100 no one is dying here," Dean turns back looking at you.

"A few weeks, maybe a month," the doctor softly replies.

"If she did radiation and if you got some of the cancer how long will she have," sam asks grabbing your hand.

"With radiation and surgery she'll probably have 4 months the most," He replies looking at Sam then back to you.

"Do it," Dean says.

"Dean-" sam starts but Dean cuts him off.

"I said do it! Get as much as you can and you save my sisters life," He yells at the doctor.

The doctor nods then walks out shutting the door behind him.

"I'll be right back," Dean mumbles storming out.

You sigh leaning your head back letting the tears fall.

~~~~~~~~~~~~~~Later~~~~~~~~~~~~~

You turn the tv off when you hear a small knock at the door. Sam opens and Cas stands there with dirt on his trench coat.

"Where the hell have you been man," Dean stands up hugging Cas.

"I had to deal with Naomi but there's something I have to tell you,"

"Maybe later. Y/N has been diagnosed with stage IV colon cancer I need you to heal her," Dean says shutting the door behind Cas.

"Dean I-"

"I know I'm asking a lot but I need this Cas please," Dean practically begs.

Sam looks at Cas then to his brother.

"Dean," Sam whispers.

"Why aren't you heading," Dean asks letting out a breath.

You look down finally accepting the fact you're going to die. Cas looks down with a guilty look on his face.

"No... no no no no," Dean falls back in the chair tears falling down his cheek.

He puts his hand over his head putting it between his legs taking deep breaths. You bite your lip wiping a tear away. Sam kisses your hand then puts it against his forehead.

"I just want to sleep," you mumble letting go of Sam's hand.

"Okay bug we'll be here when you wake up," sam lowers your bed down and you turn on your side closing your eyes.

~~~~~~~~~~~~~Next day~~~~~~~~~~~~~

You wake up to the sound of a small knock. You look to see a nurse walk in with a clipboard.

"Good morning y/n, I'm here to take you down to your MRI," she whispers unlocking your bed.

She raises your bed to a sitting position and starts rolling you down to the CT. When you arrive she helps you lay on a hard platform and pushes a button.

The platform moves into a tiny machine and you take a deep breath when told to. The platform pulls out and you get back on your bed. You cover back up as she takes you to your room.

Your brothers smile when she puts you back in your spot. Few hours later the doctor walks in with a confused look on his face.

"What's wrong," sam asks concerned.

"Uhm, the cancer is gone," He replies looking over the scan again.

"What do you mean gone," Dean asks standing up.

"There's no sign of cancer all of it is gone like nothing was there," He looks at Dean.

Dean chuckles looking at you.

"So I can go home," you asks smiling.

"Yes you can go home," He smiles still confused.

Sam laughs and hugs you along with Dean. The doctor walks out handing the nurse your file.

"Which one of you idiots sold your soul," you asks looking at them.

"None of us did, Dean thought about it but he didn't do it," Sam replies.

"So how did the cancer just vanish," you ask looking at them.

"Who cares it's time to celebrate," Dean smiles kissing your head.