Lucy Lawless (born Lucille Francis Ryan on March 29, 1968 in Mount Albert, Auckland, New Zealand) hasn't done any nude print work, but she did bare it all in the Starz drama Spartacus: Vengeance (originally titled Spartacus: Blood and Sand)
Not shy about her role as Lucretia, the rapacious wife of John Hannah's Batiatus, Lawless says about her nudity "It's a way of telling the audience, 'You ain't in Kansas anymore.'"
She went on to comment that there was so much historically accurate nudity that "you get kind of used to it."
Regarding the possibility of breast augmentation, board certified Manhattan plastic surgeon Dr David Shafer suggests that it's possible, that to his trained eye it looks like she could have implants, but goes on to say that "I don’t see any definitive proof," that she does.
The season premiere aired on January 27, 2012, with the finale on March 30, 2012. Episode 1 of season 3 is currently slated to air in January of 2013 on Starz.