Nicole Richie and Joel Madden slipped into workout gear for a walk around their LA neighborhood over the weekend. Baby Harlow sat that one out, but she was back in mommy's arms last night. After almost a year of parenthood the couple have admitted to wanting more if they are "as easy and wonderful as Harlow!" Joel also recently hinted that they're both open to the possibility of adopting a sibling in the future. Considering Nicole's your favorite new mom, it would be nice to have her show off their parenting skills with another little one.