updated 08/22/2005 AT 01:00 AM EDT

originally published 08/22/2005 AT 01:00 AM EDT

Celebs got their tan on during former Saturday Night Live star Chris Kattan's summer pool party at his Hollywood home Aug. 6. Matthew Perry held court with four ladies by the natural-rock swimming pool while Selma Blair and Adrien Brody mingled near the bar. As deejay Samantha Ronson spun beats, guests such as Jason Bateman, Patricia Arquette and Chloë Sevigny chowed on Mexican food. But the party didn't really get started until after sunset, when a few of the guests decided to go skinny-dipping. Kattan also got a surprise when Daryl Hannah, who mistakenly thought the bash was a birthday celebration, gave Kattan a present. "[She] brought me a piñata that looked like a donkey," a tickled Kattan told us. For the record, Chris won't celebrate his 35th until Oct. 19.

While FOX is considering the idea of having the fourth season of The Simple Life center around Paris Hilton's and Nicole Richie's wedding preparations, there may be one hitch: Richie says she won't agree to go along. "I would never put my own personal marriage [plans] on television," Richie tells us. "The great thing about The Simple Life is that it's a reality show but not based on my reality. It has nothing to do with my life or my home or my relationships or anything. I'm not open to anything like that." Although she and former pal Hilton have creative input on the show, Richie says she hasn't heard from FOX executives yet. "The concept is still under discussion," says a FOX rep.

Hilary Duff and her boyfriend, Good Charlotte front-man Joel Madden, went thrill seeking at Orlando's Universal Studios Florida on Aug. 5. Arriving at 8:15 p.m., the couple hurried hand-in-hand to hit as many rides as possible before the park closed at 10 p.m. At the Shrek 4-D ride, Duff, 17, and Madden, 26, playfully argued about their favorite animated character—hers is the green ogre, his, SpongeBob SquarePants. Later they took two whirls on the Incredible Hulk Coaster, then a beaming Duff cozied up to Madden to watch the nightly fireworks. "They were really affectionate with each other," says one onlooker. "She was definitely having a great time."


Spider Club, Hollywood, Aug. 5
Justin Timberlake and Cameron Diaz patiently wait by the velvet rope for five minutes before they are recognized and ushered in. Inside, the two make out at their booth all night. Nearby, Kirsten Dunst dances on a table as beau Jake Gyllenhaal settles in by the deejay booth...

In town shooting The Return of Zoom, Courteney Cox Arquette dines at the bistro four nights in a row. On Aug. 4 she brings along daughter Coco, 1, who blows kisses to diners and waitstaff on the way out...

Colin Farrell leaves the VIP room at the gentlemen's club at 2:30 a.m. wearing a stripper's white-feathered sarong on his shoulders. An hour later he goes to the VIP room again before slipping out the back of the club...

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