Weekend Hamptons buzz
• Apparently vampires can swim. “Twilight’s” Kellan Lutz turned Sunday’s house party at the Circoc Cabana Club in Water Mill into a pool party. After an afternoon of texting and chowing down on Chef Seth Levin's BBQ feast, Lutz changed into swim trunks and dominated a make-shift game of pool volleyball. Also at the bash: "Real Housewife" Sonja Morgan, who said she winds down by bringing "cute nice gay boys" to her house because they don't judge her and "help me to do my hair and makeup. What's better than that?" Agreed.
• Kathy and Rick Hilton are getting used to life on reality TV with daughter Paris' new Oxygen show "The World According to Paris." At the Ciroc Cabana Club, Kathy admitted to us that she sometimes forgets the cameras are rolling, but that she and her daughter have a secret code — "Have you talked to Michael?" — to remind each other they're miked.
• There was Bieber fever in the Hamptons this weekend. Teen lovebirds Justin Bieber and Selena Gomez were spied shopping at the Flying Point Premium Surf Shop and Candy Kitchen in Bridgehampton on Friday and eating dinner at Sen in Sag Harbor on Saturday.
• Also spotted this weekend: Victoria's Secret model Alessandra Ambrosio, accompanied by fiance Jamie Mazur, dancing on a day-bed at SL East on Sunday night as she hosted the second annual "Follow the Sun" party ... Alec Baldwin meeting and greeting fans outside Elie Tahari's East Hampton shop after a party to celebrate his pal Steve Martin's performance at Guild Hall on Saturday night ... Liev Schreiber and Naomi Watts eating dinner at East Hampton's Turtle Crossing on Thusday night; Schreiber chowed down on house-made papparadelle and Watts ate a beet salad, and both drank margaritas on ice ... Designer Betsey Johnson eating an early dinner of whole fish and champagne on the porch at Nick and Toni's in East Hampton on Friday night ... Bobby Flay and wife Stephanie March eating lobster al fresco at Bostwick's on Friday night ...