Jessica Simpson looks pretty in pink as she shows off her weight loss on the cover of US magazine, WeightWatchers. The singer-actress, who gave birth to her second child, son Ace in June 2013, claims to have lost 40 lbs since. The 33-year-old told the January / February 2014 issue of the publication, out now: "After Ace was born I knew I had to refocus my weight-loss efforts. I couldn't even button my jeans before I started." But Jessica, who with fiance Eric Johnson is also a parent to 18-month-old daughter Maxwell Drew, insists she is keeping things in perspective. "I don't want my daughter to see my beat myself up over things like food choices or numbers on a scale," she says. "Those things don't determine who we are." Pictured: Jessica Simpson Splash News and Picture Agency does not claim any Copyright or License in the attached material. Any downloading fees charged by Splash are for Splash's services only, and do not, nor are they intended to, convey to the user any Copyright or License in the material. By publishing this material , the user expressly agrees to indemnify and to hold Splash harmless from any claims, demands, or causes of action arising out of or connected in any way with user's publication of the material.