Popsugar Entertainment Halloween 40 Best Sister Costume Ideas For Halloween 2023 40 Best Sister Costume Ideas For Halloween October 6, 2023 by Maggie Panos First Published: October 1, 2015 View On One Page Photo 13 of 41 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 13 Sister Halloween Costumes: The Lisbon Sisters From "The Virgin Suicides" What to wear: Pale '70s clothing. Either nightgowns or gray skirts with white collared shirts and black vests. How to act: Lethargic, and, dare I say, suicidal. Previous Next Start Slideshow HalloweenHalloween CostumesPop Culture Halloween CostumesTVMovies