Cristobal Rodriguez & Santiago Rodriguez (chilean Brothers)

Great brothers! Are they gays or not? Is their shooting in the shower cabin was done for the film or it's a separate work ? I wonder how is it to act nude in film and pose for photografer and to go after that to university where every one sees you and comments your nudity? is I understand the youg brother is or was a student. May be in latin America is it ok ?