•WHO THEY ARE:
Paris, 22, and Nicky Hilton, 19, heiresses to their grandfather's hotel fortune.
•WHAT THEY DO:
Paris is a model, Nicky, a handbag designer; both have near-perfect party attendance and wear not a lot, a lot.
•WHEN THEY DO IT:
All the time!
•WHERE THEY DO IT:
New York, L. A., London, Vegas...and Altus, Ark., where Paris moved in with a local family for the reverse-Beverly Hillbillies reality show The Simple Life, set to air on FOX this summer. "I never realized that people work for their money," Paris says. On the bright side: "The tanning salons there are, like, $4."
•WHO THEY DO IT WITH: Pals like Kelly Osbourne and Tara Reid. "A lot of people want to automatically hate them because they are pretty and rich," says Reid. "But they walk in and the whole room gets brighter."
•WHO THEY DATE: Nicky recently broke up with ex-MTV veejay Brian McFayden, 29; Paris split with her boyfriend of two years, model Jason Shaw, 30.
•WHO THEY HATE: Shannen Doherty and Paris argued, allegedly because Paris talked to Doherty's ex-husband Richard Salomon.
•WHAT'S MOM SAY? Says Kathy: "The girls are a lot more normal than people think."