The Hilton Sisters

Heirs to the Hilton hotel fortune, Paris, left, and her sister, Nicky Hilton, pose on the press line at a charity auction benefiting P.S. Arts in Los Angeles on Friday, June 27, 2008. Paris, Nicky, and their mother, Kathy Hilton, hosted the auction.

Nicky, left, and Paris Hilton welcome in the year 2008 at a New Year's Eve party at LAX Nightclub in the Luxor in Las Vegas, Monday, Dec. 31, 2007.

The Hilton Sisters

Paris Hilton and Nicky Hilton met at Cinespace Restaurant in Los Angeles Oct. 8, 2003, to celebrate the MTV series "Made" while marking Nicky's 20th birthday party. (Nicky, the younger sister, was born Oct. 5, 1983. Paris' birthday is Feb. 17, 1981.)

Lately, Paris is the sister making the news. She's said to be steaming mad over a steamy sex video that has gone public all over the Internet. The homemade video features this heiress to the Hilton hotel fortune having sex with Rick Solomon, who went on to marry actress Shannen Doherty in 2002.

Paris Hilton appears at the Chanel SoHo Boutique Opening Party in New York on Dec. 5, 2000. Paris stars in "The Simple Life," a reality show in which city girls Hilton and Nicole Richie (daughter of singer Lionel Richie) try to survive for a month on a farm in Altus, Ark. The show was filmed in April and May 2003, and is due for broadcast on Fox in December.

Paris and Nicky Hilton arrive at the Sean John Men's Fall 2001 Collection in New York on Feb. 10, 2001. Nicky is named after her granduncle, Nicholas Conrad "Nicky" Hilton Jr., who was the first husband of Elizabeth Taylor and the son of Hilton Hotels founder Conrad Hilton.

Nicky and Paris flank their mother, Kathy Hilton, at the March of Dimes 26th Annual Million Dollar Beauty Ball in New York on April 4, 2001. Their father is Rick Hilton, a real estate magnate.

From left, Nicky Hilton, Paris Hilton and Princess Alexandra von Furstenberg in the front row at the Diane Von Furstenberg Fall 2002 collection in New York, Feb. 10, 2002.

Paris Hilton and Brendon Davis arrive at the Vanity Fair, Bebe and Environmental Media Association Rock The Casbah party held in Les Deux Cafes in Los Angeles March 18, 2002.

Paris and Hilfiger model Jason Shaw pose at the opening of a new Tommy Hilfiger retail store in Duesseldorf, Germany, Aug. 3, 2002.

Paris and Nicky arrive at the Miramax party after the 60th annual Golden Globe Awards in Beverly Hills, Calif. Jan. 19, 2003.

Nicky and Paris pose for photographers at the premiere of the film "Alex & Emma," June 16, 2003, in Los Angeles

Paris and Nicky arrive for the 2003 MTV Video Music Awards at Radio City Music Hall, Aug. 28, 2003, in New York.

Paris sits in the front row during the Marc Jacobs Spring 2004 Collection show Sept. 15, 2003, in New York.

Paris and Nicky appear backstage at the Tommy Hilfiger Spring 2004 Collection Sept. 16, 2003, in New York.

Nicky and Paris Hilton pose on the red carpet at Cirque du Soleil's international gala premiere of "Zumanity" Sept. 20, 2003, at the New York-New York Hotel & Casino in Las Vegas.

Bijou Phillips, Sean Lennon and Paris Hilton at the "Wonderland" movie premiere at the Mann's Chinese Theater Sept. 24, 2003, in Los Angeles.

Paris Hilton is shown at the premiere of "Scary Movie 3" at the AMC Avco Theatre in Westwood, Calif., Oct. 20, 2003.