I agree with Emilia clarke's instagram post about keeping nudity tasteful and not overdue it, but there are points in season five where we see you getting out of bed and covering up them nipples with your bedsheet isn't gonna change the fact that we've been seeing your titties for five years so relax. Besides it seems like every actor practically has to be comfortable with getting nude. (i.e. Loras Tyrell & his buttbuddy)