Jessica Simpson Shows Off Her Toned Legs on Instagram (PHOTOS)

Jessica Simpson can get back into those Daisy Dukes any day now. The 34-year-old took to Instagram on Saturday to flaunt her ridiculously toned legs during a holiday photo shoot. In two different sexy photos, Simpson posed on her knees, then stood with her arms up in the air showing off a little black dress with fringed sleeves – but, again, all we can look at are those gams! Earlier this year, Simpson opened up about her recent weight loss, which she attributed to a Weight Watchers diet plan and sessions with celebrity fitness trainer Harley Pasternak. And if you're wondering how to replicate those killer legs? "We usually alternate between doing quads one day and hamstrings and glutes or butt the next, and then inner thighs," Teri Ann Krefting, one of Pasternak's trainers, told PEOPLE about working with Simpson 4-5 times per week for about 45 minutes per day.