When Hudson gave birth to son Ryder, now 2, the new mom had some understandable anxiety. "All of a sudden you have these feelings like, 'I gotta do everything perfect, I'm a mother now,' " the 27-year-old says. She eventually relaxed into her new role. "It's phenomenal. He's made me feel more youthful than I've ever felt. I feel more vivacious, more sexual, more alive because of him."