Kate Hudson and Gwyneth Paltrow share one of Hollywood's most enduring friendships. At the Santa Barbara International Film Festival, Hudson detailed how their relationship has evolved from close friends to a true family connection.

Hudson's three children—Ryder, Bingham, and Rani—affectionately call the Oscar-winning actress and Goop founder "Auntie Gwyneth." This nickname signifies Paltrow's deep integration into their daily family life and traditions.

The bond between the two stars solidified years ago when they both lived in England simultaneously. Paltrow became a crucial support system for Hudson, especially as she raised her eldest son. Navigating motherhood and life abroad together transformed their friendship into a lifelong sisterhood.

Hudson, a mother since age 23, told PEOPLE that having Paltrow by her side made her parenting journey easier. For decades, they have supported each other through career shifts, business ventures, and family growth.

The moniker "Auntie Gwyneth" represents more than a cute title; it reflects a multi-generational bond where the children feel genuine safety and love. Hudson emphasizes the importance of a strong village of friends who feel like family, with Paltrow remaining a constant, loving presence in her children's lives.