Kate Hudson relaxed in a sundress, strolled in the streets, and checked out trinkets in Buenos Aires with Matthew Bellamy and Ryder over the weekend. Kate and Matthew shared sweet PDA kisses during their Argentina adventures, and she played photographer for the group. The trio are in South America for Muse's tour and are next off to Sao Paulo, Brazil, for three nights of shows this week. Kate's getting in as much traveling as possible before her Something Borrowed press duties kick off soon — don't forget to enter to win a trip to meet her in LA! — and of course the arrival of baby number two. Matthew, Ryder, and Kate went on a bikini- and beach-filled vacation in Cabo last month between house-hunting adventures and Little League games in California. Pregnancy clearly isn't slowing down the stylish mom-to-be, and she even appeared to be indulging in a sip of red wine out to dinner with her boys.