social media, a little over a week ago. The 25-year-old fiance of singer Robin Thicke, 43, was spotted showing off her growing belly in a white one-piece at the beach on Wednesday. The couple of five years soaked up the sun with their two daughters, Mia, two and Lola, one, as they enjoyed a beach lunch in Malibu. The California born model kept it casual for the beach day, as she threw on a powder blue babydoll dress. Subtly flashing her engagement ring, she walked barefoot on the sand carrying a