Celebrity Couples Spotted Together :Rihanna & Chris

Back from her trip to New York, Rihanna went shopping with beau Chris Brown along Los Angeles's trendy Robertson Boulevard. The lovebirds stopped at Kitson Men, where they shopped for Brown, and Kitson Studio. "They were holding hands and walking around the store looking at things," an onlooker says. At Kitson Studio, the two picked up goodies for Rihanna. Says the onlooker: "They were really lovey dovey the whole time."

• Matt Damon, lunching with wife Luciana at Isabella's in New York. The star couple, who were joined by their daughters and three family friends, shared appetizers and some crème brulée – sent over compliments of the restaurant – for dessert. "Matt was absolutely adorable with his girls," a source tells us. "He was cutting up their food and being an amazing dad."

• Tobey Maguire, dining with his pregnant wife Jennifer Meyer and two male friend's at L.A.'s Sunset Tower Hotel. "She looks very healthy, her skin was just glowing, but you would not tell that she was pregnant," an observer tells us. "It was a very happy meal with friends – a lot of laughter." The group was in the same alcove as Owen Wilson, who was dining with a man and a woman.

• Stylist to the stars Rachel Zoe hung out at Teddy's inside the Hollywood Roosevelt Hotel with her husband Rodger, and her two assistants, Brad and Taylor. She sat in a booth with curtains and kept to herself but left the curtains open so people could approach her. And they did! Zoe happily posed for pictures with fans.

• Chris Noth, girlfriend Tara Wilson and their baby son Orion shared a family outing at New York's FAO Schwarz. Mr. Big bought a $30 gray wolf plush doll. "Tara was holding the baby and Chris was pushing the stroller," an onlooker says. "They seemed very happy to be spending time with the baby." Also at the toy mecca that day: a solo Faith Hill, who was just "checking things out."

•Mena Suvari, stopping into Beverly Hills boutique Switch for some shopping – and smooching with her fiancé, Simone Sestito. Suvari first headed in by herself and picked a bunch of things. At the end of the spree Sestito met up with her. "They were so cute as she was being rung up," says an onlooker. "They were laughing and kissing – totally adorable."

• Leah Remini and husband Angelo Pagan, celebrating the opening of interior designer Michelle Workman's new store, The Red House Interiors, in Los Angeles. Remini sat next to her husband on a couch, sipping champagne and chatting with fellow guests at the private soiree.