AceShowbiz - Brittany Cartwright, 35, turned heads at Kathy Hilton's Christmas party in Bel Air, California, wearing a revealing strapless gown and flaunting her svelte figure. The former "Vanderpump Rules" star has been open about her weight loss journey since giving birth to her son, Cruz.

In September, Cartwright underwent AirSculpt, a body contouring procedure that removes fat and tightens skin. "I am feeling great these days after getting AirSculpt," she said, attributing the procedure to her newfound confidence.

Cartwright has previously tried other weight loss methods, including Jenny Craig, which helped her shed 40 pounds. She has also posed in swimsuits for Cupshe.

At Hilton's party, Cartwright posed with Hilton and several female friends. She also admitted to having a flirtatious exchange with a man on social media before embarking on a fling with Julian Sensley, a friend of her ex-husband, Jax Taylor.

Despite undergoing extensive weight loss, Cartwright does not believe Taylor changed significantly during his time in rehab. "I don't feel like he changed at all in those 30 days," she said. "If you're in therapy seven hours a day, and you're still finding time to call me names and cuss me out...you're obviously not ever gonna change."

Although Cartwright is open to reconciliation with Taylor, she is wary of returning to a toxic situation. "But I won't waste my time and get back into a toxic situation," she said. "I'm thrown in the middle of all these fights and constantly forced to apologize for him...It's hard."