Piece by Piece (слэш)

Steve and Bucky are discovered on the bank of the Potomac & brought to Stark Tower. From the beginning, everyone has one thing on their mind: Help Bucky. It’s going to be hard, but they're ready to give it everything they’ve got - and they’re the Avengers, so they’ve got quite a lot.
***
“Hey, Buck,” Steve says, his voice soft. Bucky lays on his side, pressing a cheek to the soft carpeting, wishing he hadn’t ruined all his blankets. He hates feeling cold and it’s a little cold in his room. “You don’t have to talk or come out or anything, but… I’m going to lay here, okay? All night. I’m going to stay right here so you don’t forget that it’s different now. So you don't forget that you’re safe. You’re not alone.”
Bucky doesn’t know what to say to that. Even if he did know, his tongue is doing that heavy-sticky thing again. Instead, he slides his flesh fingers under the crack in the door, barely able to fit the tips, and waits. A moment passes. Then Steve’s fingers are pressing right back.
And maybe Steve is right. Maybe things are different, maybe he is safe, maybe he’s not alone.
Maybe - just maybe - he’ll be able to get himself back after all, piece by piece.