LONDON: Paris Hilton’s mother is proud of her daughter’s homemade sex tape, according to a new biography.

Biographer Jerry Oppenheimer claims that while researching his book House of Hilton he found that 25-year-old Paris’ parents, Rick and Kathy, were not fazed when One Night In Paris was leaked onto the internet, and eventually released as a DVD, without her permission.

He is quoted by the New York Daily News newspaper as saying: “I have family sources telling me that Rick and Kathy Hilton are proud of everything Paris has done, including the X-rated video that launched her to this international stardom, infamy and fame. It is a bizarre family. Behind the scenes her parents were not opposed to the video because that totally launched her.”

The author also says he ended up feeling sorry for The Simple Life star because her mother pressurised her to become a celebrity. Oppenheimer added: “Her mother, Kathy, put her in make-up and allowed her into nightclubs from a very young age. I feel sorry for her because in a way she had no chance to do anything else but live the dreams her grandmother and her mother had for themselves. My goal in doing this book was to figure out how she became who she is. I came away from this research with a lot of sympathy for Paris.”