Summary: Story 11: 2-in-1 Brother(s) - What if Sam's body is still not healed enough to survive on its own after Gadreel got cast out? Will he agree to possession by another angel if the angel is a good friend? A trusted brother? Tag: Season 9, Words: 1,449

2-in-1 Brother(s) is inspired by 9x10 "Road Trip" and Season 9 in general.

The story takes place after Gadreel left Sam and Sam, Dean and Cas took off in the Impala.

Rated: K+

2-in-1 Brother(s)

Background: Sam is only half-healed by Gadreel when he cast him out of his body and he is in a bad shape. With no angel healing him from the inside and unable to heal himself fast enough, he will fall back into a coma unless something is to be done quick.

"Sam, you alright?" Dean asked as they sped away from the abandoned building, currently housing both the king and a knight of hell.

"Sam?" Dean glances sideway when Sam did not answer immediately.

"Ya, I'm fine," Sam replied in a controlled voice but Dean knows better than to take his words for it.

"Cas, did you heal him right?" Dean turned to the angel at the backseat for a more factual opinion.

"I did my best," Castiel sighed, "but his body is still too damaged from the trials, his organs will begin to fail soon and he will fall into a coma until…" Castiel trailed off ominously.

Dean's hands tightened around his steering wheel as he remembered the fear and desperation that gripped him while he sees Sam lying in a hospital bed, withering away. Right now, Sam must be in pain, though he tried not to let it show.

"Is there any way to fix him?" Dean asked the angel.

"Not from the outside. If only Gadreel had healed him further from the inside, his body may recover to the point where I can heal him from here," Castiel said dejectedly.

So, it seems like only an angel possession can help save his brother now… But, wait. They do have an angel, right there with them, sitting at the back of the Impala.

"Can you do it?" Dean blurted out at Castiel.

"Can I do… what?" Cas asked in confusion.

"Can you heal Sam from the inside, like Gadreel?" Dean clarified pressingly.

There was a moment of silence as Sam and Cas processed his question.

"Wait… Are you suggesting that Cas should, what, possess me?" Sam said exasperatedly.

"If you have another idea, I'm all ears," Dean replied.

"I may be able to do that, but…" Cas said slowly.

"But what?" Dean felt like he is currently sitting on the edge a rugged cliff, and the suspense is about to drive him off of it.

"…Sam has to say "Yes"," Cas finished his sentence and silence fell. Sam has to agree to the possession. Of course. The big "Yes" that gives the green light for an angel to enter your body. So, now it is up to Sam.

It is not going to be easy. Dean is careful to think it through before he opens his mouth again. Given the traumatic experience that Sam had just been through, you can be sure he won't be readily open to being possessed once again. Also, tricking him into saying "yes" wouldn't work a second time…

"Sam, are you willing to let me heal you from the inside?" Cas asked Sam directly.

Sam did not answer but remained silent instead.

"Sam, you're hurting, and it will only get worse until it knocks you unconscious. Let me help," Cas offered.

Dean casts a worried glance at his little brother sitting by his side.

"I'm fine," Sam repeated shortly, untruthfully. Cas is right. He can feel his body failing. Even now, his breathing is becoming more laborious as he tries to keep the pain under control.

Dean noticed that Sam has not given an outright rejection, which raises some hope that his stubborn brother may still be swayable to make the sane decision in this matter.

"Sam, it wouldn't be like with Gadreel. I will not take away your will, or take over your body without your knowledge and consent. I will leave as soon as your condition stabilises," Cas told him sincerely.

There was another short pause.

"What about your vessel? What will happen to Jimmy's body… if you leave it to possess me?" Sam asked while panting for breath.

He still has not agreed but it is getting close. Dean has made the right choice to keep his silence and let Cas do the persuading.

"I will be able to preserve it and we can keep it somewhere safe – in the bunker, so I can return to it after I heal you," Cas replied easily.

"Right…" Sam breathed and then there is silence in the car.

Dean and Cas waited, but the silence dragged. Dean peeks to his side and his blood runs cold.

"Sam?" Fear clotted his voice. He jerks his steering wheel and pulls to a stop at the side of the long, empty highway.

"Sammy?... Sammy! Hey!" Dean leaned over and grab him by his arm, shaking it tensely; trembling.

"…What?" Sam jolts awake, his eyes unfocused for a moment.

"You're starting to lose consciousness- Sam, will you say "yes"?" Castiel said urgently.

Sam looks down at his hands. He felt the firm grip of pressure on his arm, quivering lightly. Dean has not said much to convince him to take up Cas's offer, although he very much wants him to; although he is practically anxious as hell, just dying for Sam to say "yes" to the only option they have. Sam knows that. And he knows why Dean is holding it in. But he has no pity for his predicament, not now anyway, seeing as how he had brought it upon himself.

Another wave of weakness hits Sam, threatening to drag him under, and it is time for him to make his decision before he passes out permanently.

"Sam, you can trust me... Will you trust me?" Castiel demanded.

"… Yes," Sam finally said, and he felt the sense of relief radiating from the person next to him, the grip on his arm loosening the moment he said the magic word.

Then, a bright, white light starts to emanate from the back and it grows brighter and brighter. Dean has to shield his eyes from being blinded by that light and when he opens them again, Sam is unconscious once more and Cas's vessel is slumped on the backseat of Baby.

"Sam? …Cas?" Dean called out uncertainly as he leans forward to scrutinise the body beside him.

Suddenly, Sam's eyes flip open and there was a flash of blue. Dean jumps back a little, as he stares at "Sam", who has sit himself upright.

"Sammy?" Dean asked tentatively.

"No, it's me," Castiel replied with Sam's voice.

"Oh. This' gonna be weird…" Dean muttered to himself.

Cas turns around and raises his palm towards Jimmy's body. White light emitted from his hand, making the body glow for a moment.

"It should be able to sustain till I return to it," Cas commented while looking down at his old vessel.

"Good," Dean replied.

"Gadreel had made some progress with the healing. It'll take some time but I will heal Sam completely," Cas promised.

"Ya, sure, you er, make yourself comfy in there," Dean said.

"I am… "comfy". Sam is Lucifer's true vessel, he is strong. He'll be able to hold any angel easily, and so will you," Cas informed him.

"Makes sense," Dean replied shortly.

Cas: "I'll let Sam take the wheel now, I shall focus on the healing. But before we switch places, I should warn you…"

Dean: "Yea?"

Cas: "I tried not to pry, but he's not exactly hiding it, either. Sam is.. angry - at you."

"Right… Crap…" Dean sighed. Obviously, Sam is angry. Dean already expected this. Angry wouldn't even cover it, he'll be furious!

Cas: "I'll let you guys work it out…"

"Wait… Just, one moment," Dean said somewhat nervously. He took a deep breath and stares down on the dashboard, and then he decides to turn on the engine and get Baby moving again.

One, this is so that he has an excuse to look at the road instead of Sam's livid expression. Two, there is a huge possibility that Sam may take off again, but they're on a lonely highway, with not a single "stealable" car in sight. Dean wants to make sure that he is back to the safety of the bunker at least. He is hoping that there may be a higher chance for him to stay put if the car is already on the move. And anyway, Dean has already decided, Sam will not be the one leaving this time, he will.

"Ya, ok, let's do this," Dean said dully, his eyes dark and solemn as they fixate on the road ahead.

"Good luck," Cas threw a sympathetic look towards Dean and his eyes flash with another momentary blue and Sam is back.

And then there is silence.

The calm before the storm…

~The End~ (Maybe)

Fun Fact: "2-in-1 Brother(s)" is an interesting idea that I had while re-watching season 9 before. But I was busy with intern and my other stories then so I didn't write it out until now~

I really like this idea though, may wanna write a sequel to this, maybe~