When Salma Hayek
recently started wearing looser outfits to the set of Ugly Betty
, her cast didn't suspect anything. But then "all of a sudden there was this girlie giddiness," says costar Ana Ortiz. On March 9, Hayek explained all: "Businessman François-Henri Pinault and his fiancée, Salma Hayek
, are happy to announce they are expecting their first child," her rep said. Hayek, 40, whose ex-flames include Edward Norton and Josh Lucas, and Pinault, 44, a divorced father of two, first stepped out last April in Venice. "They seemed very into each other and really happy," says an onlooker. No word yet on wedding plans or where they'll settle (Hayek lives in L.A., Pinault in Paris), but friends are already celebrating. Says Ugly Betty
's Vanessa Williams
: "She'll be a passionate mother."