"I'd done nudity before and was concerned with being labeled for doing it again," the 28-year-old British actress said.
Clarke, who plays exiled royal Daenerys Targaryen on "Thrones," also disrobed as Holly Golightly in the 2013 Broadway production of "Breakfast at Tiffany's." HBO, however, has cut down on Daenerys' nudity.
The fifth season of the behemoth series premieres April 12, and production on Season 6 will begin in July. Though she denies it, the star is expected to be earning $7 million by the seventh season as a result of a collective negotiation reportedly involving her and costars
In the meantime, Clarke has another other high-profile role locked down: Come July 1, she'll hit the big screen as Sarah Connor in "Terminator: Genisys" alongside boyfriend