I haven't bought a single maternity clothing item this time around. And I really didn't have much during my first pregnancy either. Call me cheap - whatever. I'll sport my shorts sitting way too low, exposing the bottom part of my tummy like a a bad plumber's crack scene. Luckily for all the pregnant ladies of the world, legs don't need special maternity clothing. So expose them - prego or not! And do this one simple move for insanely toned legs. Pin It! This barre-inspired isometric move…