Author note: So, this fanfic is the translation of Le pull Compagnon-cube in French. English is not my first language. I would say thank you to Aissrikawaii who correct my textes. If there is any mistakes it's my fault, not her.

disclaimer: I own nothing (alas!)

The Companion-Cube Jumper

_ John? You're wearing a jumper with a big pink heart.

_ Well, actualy, it's not a real heart. It's ...hum...It's a companion-cub. You know, it comes from a video game where you have to...

_ God! John! I don't care about where it comes from. You're going to take ten minutes for an unnecessary explanation that I'll immediately delete to my hard drive.

However, it is better than the others. Well...I mean less ugly.

_ Thank you. So, I'll be back from the hospital around six pm. If you're hungry, there is some food in the fridge. Try to heat it a little this time.

...

John was gone, the jumper on the couch, and Sherlock didn't know what to do.

The experiment that he started in the kitchen included a long waiting, the time that the kidney that sat in its test jar responded to a highly corrosive liquid. The result could save a human life.

During this time, he got bored. John's computer was within easy reach. He caught it deftly and switch it on. He cracked the password that his flatmate persisted on keeping and he did his research. This story about companion-cube intrigued him.

He was petrified by what he learned.

...

When John came back, he found Sherlock on the couch, pursed lips and frowning. A strong smell of burned polyester was floating in the apartment.

He rushed to the kitchen to discover the scraps of HIS jumper.

_ Sherlock? What's happened?

_ An accident.

_ An accident?

_ Repeating what I said is useless and boring.

_ Sherlock, How the hell did you do that?

_ ...

_ I asked you a question!

_ ...

_ Sher..., Ho no! It wasn't an accident, was it?

_ ...

_Sherlock! Answer me! You just dissolved one of my jumpers, I may at least know why!

_ How can you wear this horrible thing after the events of the swimming pool? I made my researches, on internet. I saw what it was, this... this companion-cube! I refuse you to wear this thing!

"A special type of Storage Cube, the Weighted Companion Cube appears in both Portal and Portal 2. It is identical to the regular Weighted Storage Cube in both games, except that it has a heart where the Aperture Science logo would be. At the end of the Test Chamber 17 in Portal, the player is forced to throw it into an Aperture Science Emergency Intelligence Incinerator."

"_If you don't stop prying I will burn you. I will burn the heart out of you.

_I have been reliably informed that I don't have one.

_ But we both know that's not quite true. "

John turned pale. He didn't understand what it meant until now. He remained silent and it was Sherlock who continued.

_ When I am on a case, I just see the cerebral aspect. I can't feel things like compassion or empathy. You understand people. Not greats criminals or serials killers or psychopaths but normal people. If I am the one who think, the brain, you are the heart. You are all those feelings that are unreachable to me.

You are my heart, John and I don't want you to be burned.

_ I am sorry. I haven't realise. Sherlock, calm down. Listen! I am not a companion-cube, you won't throw me in any incinerator and I am a soldier, do you remember? If Moriarty want to reach me, I can defend myself and I can shoot. I am not defenseless. But I promise to never make allusions to portal again.

The consulting detective made a sulky grunt in approbation. Then he remembered the kidney wich was now completly unusable. No matter. He felt reassured by John's speech.

...

The next day, an anonymous message appeared on the John's blog: " Too bad, Johnny-boy! It suit you so well! - M"

So, what do you think? Please review! :)