Liberty Ross gives new meaning to the words "blue crush."

Stepping out in London on Nov. 15 to support fellow model Kate Moss, who was celebrating the launch of her new book at 50 St. James, Ross nearly stole the spotlight from her gorgeous gal pal.

The 34-year-old mother-of-two flaunted her flawless body in a plunging royal-blue satin suit -- with nothing underneath but a delicate gold necklace that skimmed her chest. She completed the look with black stiletto pumps and minimal makeup. (Those cheekbones speak for themselves!)

The British beauty has been turning heads all over in recent months -- ever since her husband, Snow White and the Huntsman director Rupert Sanders, 41, was caught cheating with Twilight actress Kristen Stewart, 22, in July. Stewart and her love, Robert Pattinson**, reconciled shortly after the affair -- they're currently in Madrid together, part of a world tour to premiere The Twilight Saga: Breaking Dawn Part 2 -- but Ross has not been as quick to forgive and forget.

Sanders was nowhere in sight when his wife hit the town on Thursday. After greeting Moss with a big hug, she partied the night away with pal Cara Dlevigne until around 2 a.m. An onlooker tells Us the two spent most of the evening tearing up the dance floor and sipping Ciroc vodka cocktails.

Still, there are signs that the spouses are trying to move forward peacefully -- perhaps for the sake of their kids, Skyla, 7, and Tennyson, 5. On Oct. 31, the estranged couple reunited to take their brood trick-or-treating in Los Angeles, and earlier that month, they were spotted embracing after an alleged counseling session.

"I'm very happy with my life," Ross said in a recently released video interview for designer Alexander Wang's Confessional series. "I'm lucky. I have good people. I have two amazing children."

"I believe we're all on journeys and we're all given lessons at certain times in our life...sometimes when things seem really bad you have to be able to see the good and learn from it," she explained. "And move forward as graciously as possible."

"[This year was] the end of some things and the beginning of something else," she continued. "Beginnings and endings are always really exciting."

This article originally appeared on Usmagazine.com: PICTURE: Liberty Ross Parties, Flaunts Cleavage in London