Sienna Miller has been called many things by the press. Pushover's not one of them.

For the second time in seven months, the paparazzi-hounded actress has launched legal action against two British tabloids for running topless photos of her—this time with new beau Balthazar Getty—thereby setting off a particularly rousing round of home-wrecker rumors about Miller.

Miller's law firm, Carter-Ruck, has served breach-of-privacy papers to News of the World, The Sun and Big Pictures, the photo agency that snapped the candids of Miller and Getty's clothes-eschewing vacation to Italy.

Two articles and accompanying pics were published in each newspaper and on their respective websites, prompting Getty's still legally wed wife to label them "humiliating."

Both publications have since removed the photos and stories from their sites.

"Neither I nor my client will be commenting further," Miller's attorney, Mark Thomson, told London's Guardian newspaper on the fresh suit.

Miller has gone down this path before, and to great results.

In December, she was awarded more than $75,000 from both newspapers in an invasion-of-privacy suit for publishing nude photos of her illicitly snapped on the set of her forthcoming, skin-friendly flick, Hippie Hippie Shake. Though it seems small by U.S. punitive standards, the payout was one of the largest settlements of its kind in U.K. legal history.