Marc Malkin

MAN’S BEST FRIEND:  Armed with a water bowl, Pete Wentz, who is rumored to be getting married to Ashlee Simpson this weekend, taking his dog for a walk in L.A.

BIG DADDY:  Chris Noth, shopping for baby products at Pavilion's in West Hollywood on the same day that Sex and the City premiered in London.

MOTHER OF ALL BRUNCHES:  Charlize Theron, having Mother’s Day brunch at Comme Ca in L.A. with her mom, stepdad and boyfriend Stuart Townsend.

BAND AID:  A very pregnant Tori Spelling, picking up a Belly Bandit at the Silver Spoon Dog and Baby Gifting Suite in L.A. along with a men’s Gita Manny diaper bag for hubby Dean McDermott.

PLAY BALL:  Pamela Anderson, taking her sons and their little league team to see the Dodgers play the Houston Astros at Dodger Stadium in Los Angeles.

OLD FRIENDS:  Jessica Simpson, along with parents Joe and Tina, taking in sister Ashlee’s ex beau Ryan Cabrera’s show at the Key Club in L.A. (Papa Joe is Cabrera’s manager.)

CENTRAL HEAT:  Rachel McAdams, helping a pal celebrate her birthday at Central in Hollywood.

TORY STORY:  Molly Sims, hitting the C.H.I.P.S. luncheon honoring designer Tory Burch at the Beverly Hills Hotel.

SIN-SATIONAL:  Carmen Electra, getting a massage at the Hard Rock Hotel & Casino’s Rock Spa in Las Vegas before attending the DVD release bash for her film Meet the Spartans and partying at Body English’s Smashtime.

JEANS THERAPY:  The Kardashian sisters, picking up Plush Premium Denim jeans at the Wango Tango concert gift room in L.A.

DIXIE'S CUPS:  Drama Desk Award-nominated drag queen Dixie Longate, throwing a Tupperware party benefiting AIDS/Life Cycle’s Team Equinox at Tom Whitman’s Size party at West Hollywood bar Here.

COMING UP

GREEN GIRL:  Chloë Sevigny hosts Women’s Health magazine and the Environmental Media Association’s Down to Earth party tomorrow night in NYC.

—Additional reporting by Laura Lane and Claudia Rosenbaum