This Week on Instagram…Gigi Hadid and Lily Aldridge hang out. Ana Beatriz Barros has a new canine friend. Anja Rubik is on a boat. Alyssa Miller poses on a mountain. Constance Jablonski gets glammed up. Nina Agdal shows off her bikini body at the beach. Alessandra Ambrosio looks smart in a pair of glasses. Izabel Goulart is on set for H&M, and much more! Take a look at our other Instagram roundups, in case you missed them.