King of the Hill (1997)

S11E1 The Peggy Horror Picture Show

After a clothing swap with the local women leaves her feeling less feminine, Hank surprises Peggy with a new pair of shoes. When her go-to shop in Lubbock closes down, she discovers 'Clairissa's Closet' and quickly bonds with Carolyn, who becomes her close friend. Their friendship flourishes until Peggy learns that Carolyn is actually a man, while Carolyn discovers that Peggy is a woman.