Sally and Joe's relationship

Joe Walnuts is the younger brother of Sally Walnuts, initially Sally loves her baby brother, though she too became a thorn in his side as he grew up. Being Sally's brother, he refers to her as "sister" and "giant sister". Yet Joe has developed proper respect for his sister, and invariably he loves Sally when she protects him from being teased or threatened by bullies. Early in 1977, like many siblings, they fight a lot. Sally normally bosses Joe around, or yells at him, and Joe normally annoys Sally with his habits. However, every once in a while, they get along.

Sally's opinion on Joe
Sally definitely shows a softer side to Joe than she does to Willy. She is generally nice to Joe, but still somewhat crabby, and often acts as a mentor to him. In his first appearance in the Thanksgiving Special, Sally is seen taking the infant Joe outside for the first time. Sometimes, Sally likes to call him "Joey" or "little brother".

Joe's opinion on Sally
Yet Joe has developed proper respect for his sister, and invariably he loves Sally when she protects him from being teased or threatened by bullies. Initially Sally loves her baby brother, though she too became a thorn in his side as he grew up. Being Sally's brother, he refers to her as "sister" and "giant sister".