This Week on Instagram…Izabel Goulart celebrates 1 million followers. Chrissy Teigen gets up close with a bear. Naomi Campbell is eternally glam. Hailey Clauson wants you to know about sex. Cara Delevingne has some fun at the Met Gala. Karlie Kloss visits Harvard. Gigi Hadid wears curly hair. Irina Shayk looks really good in a towel. Alessandra Ambrosio visits Mexico and much more! See even more model candids in our previous Instagram roundups.