Malia and Sasha Obama just took their sweet sisterhood [1] up a notch. After making a gorgeous appearance at their first state dinner [2] earlier this month, President Obama's daughters started their Spring break in the best way possible: accompanying their parents on a historic trip to Cuba. Not only did the girls bring their style A game [3] on Sunday, but they also basically personified Rihanna [4]'s classic hit "Umbrella" by saving each other from the rain. The trip marks the first time a sitting American president has visited the country in almost 90 years. See more pictures from the family's outing ahead, and then check out even more of Sasha and Malia's best moments together over the years [5].