Stucky

Stucky is a relationship between Steve Rogers and Bucky Barnes in the Captain America fandom.

Canon
FILMS

Steve and Bucky grow up together as neighbours in Mobile, Alabama and become like brothers. When Steve's parents die tragically, Bucky sways Steve to let him help. Throughout their childhood Bucky has been there for and stood by Steve. During their time in the army, when Steve becomes Captain America, Bucky is lost on a mission in 1943 and Steve thinks he has gone forever. In 2014, they meet again as Steve discovers S.H.I.E.L.D. has been a front for Hydra and Bucky has served as their brainwashed assassin. Steve vows to save Bucky from the clutches of Hydra.

Fanon
This ship has exactly 26,271 fanworks on archiveofourown.org, meaning it is one of the most massively popular ships in the entire Marvel fandom. It also has 454 fanworks on www.fanfiction.net.