Monday

Couples Watch: Sacha & Isla, Heidi & Spencer ...

07/23/2007 at 06:00 AM EDT

• Sacha Baron Cohen and pregnant longtime girlfriend Isla Fisher, eating dinner with two male companions at Chateau Marmont in West Hollywood. The couple talked and laughed for hours with their meal – and at one point, Fisher got up and sat on Cohen's lap, an onlooker tells us.

• Captivity star Elisha Cuthbert and hockey player beau Sean Avery, partying at West Hollywood hotspot Hyde and looking "really sweet together," holding hands, according to an observer. The pair shared a drink as they chatted up friends.

• Brittany Murphy and new hubby director Simon Monjack, keeping close company during a screening of the film Love and Other Disasters – which stars Murphy – as part of Los Angeles's Outfest. While the couple enjoyed the film, they didn't stick around for the post-screening cocktails.

Padero Armendares and Lance Bass

ROC / Fame Pictures

• On hand to help pal Justin Timberlake, who was hosting the opening of his New York City restaurant Southern Hospitality, Lance Bass made time for another important guy in his life – his new boyfriend Pedro Andrade. Once inside the eatery, Bass and his new boy took a seat right near Timberlake, and Bass chowed down on biscuits and fried onion rings, all while talking to his model beau.

• The Hills stars Heidi Montag and Spencer Pratt, enjoying a sunny lunch at Mogan's Café in the Pacific Palisades after returning from Miami Fashion Week. "They were relaxing, enjoying some time together," a source tells us, adding, "Heidi has been busy recording some songs with David Foster."

• By PAUL CHI, SHRUTI DHALWALA and MICHELLE TAN

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