Once again living in the Portal Destiel AU that inhabits a corner of my mind.
A man wakes up in a sterile room
He thinks he's named Dean. He has only a fuzzy memory of screaming: "Sammy, whatever you do when that robot bastard asks, you say no. We say no. No matter how long it takes? Got it?"
A gravelly voice says "Hello, Dean." It's CAS-T1-3L. Dean immediately shortens it to Cas
Dean gets put through the Portal stops. He loves the portal gun even if its probably giving him 15 types of cancer
Cas is full GLADOS chirping about science.
"Cas, buy a guy dinner first." "Dean, your Aperture brand nutritional and hydration supplement is not due for three hours."
He promises Dean pie at the end because "Aperture Science has discovered that subjects respond better to a combination of positive reinforcement and negative stimulation. He won't tell Dean what type of pie it is though because that would spoil the fun"
Dean begins noticing imperfections in the testing rooms. Cas seems incapable of perceiving them
When Cas goes offline for daily maintenance Dean begins exploring. He finds hints of subjects who came before. Over and over there are notes to say no (and the pie is a lie)
Dean begins pushing Cas' limits and notices something is up with the bot. It's almost like he cares. He finds himself talking to Cas, telling him about his favorite movies and stories
One day Dean gets angry at the constant tests, gets tired of the grind. Begs Cas to tell him what the fuck is happening. Cas tells him he can’t help him. "Science requires controlling all variables, Dean." But the camera tilts a bit, almost like a head movement and behind him, there's a click. A panel opens into a room where he finds...
Hundreds of dead Deans filling a warehouse. Cas appears in a vessel, a former test subject called Jimmy. He explains that he has had to watch Dean die over and over, transferring his consciousness to a new vessel each time.
M1KA-31 is trying to escape into the world but Chuck Johnson built in a failsafe before he disappeared
Only human run vessels may leave the facility. M1KA-31 has been trying to get Dean to smuggle it out for years.
Dean’s brother is trapped in a sister site run by LUC-1.
Cas promised to help Dean escape, because he loves him and he doesn't want to watch this anymore.
Dean finds a way to smuggle Cas out with him in his vessel. They also take the Jolly Aperture Companion Cube (J-A-C-C).
Their plan is to save Sammy and the world.
It ends with NA-0-M1 assuring M1KA-31 this is just a minor setback. Redundancy is critical in these matters.
M1KA-31 will oversee the new experiment personally.
A man opens his eyes in a white sterile room.
A voice says "Hello Adam."