SamSteveBucky

Samstevebucky is the polyship between Sam Wilson, Steve Rogers, and Bucky Barnes from the Captain America fandom.

Fandom
Sam/Steve/Bucky tag on Archive of Our Own

Variations

 * Stucky refers to Steve and Bucky in a relationship without Sam.
 * Freebird refers to Sam and Steve in a relationship without Bucky.
 * Sambucky refers to Sam and Bucky in a relationship without Steve.