If you thought you saw stars Mila Kunis, 30, and Ashton Kutcher, 35, in St. Petersburg this weekend, you probably did. People magazine reports the couple — former co-stars on That '70s Show — were attending her brother's wedding at Cathedral Church of Saint Peter on Saturday, followed by a reception at the St. Petersburg Yacht Club. Michael Kunis married ballet dancer Alexandra Blacker, 29, a St. Petersburg native. Blacker, who trained Mila to play a ballerina in Black Swan, began her own training at Judith Lee Johnson's Studio of Dance in St. Petersburg. She attended St. Petersburg High and her parents, Michael Blacker and Jacqueline Jones-Blacker, live in the Old Northeast. People reported that Kunis and Kutcher's present to the newlyweds is their upcoming honeymoon: a 10-day trip to Australia. The Two and a Half Men star has been dating Kunis — declared in 2012 to be Esquire's choice as sexiest woman alive — for two years.