Christina Aguilera has two little cuties on her hands! She may be back as a judge on NBC's The Voice, but when she isn't on set, she's at home tending to her children. In 2008, Christina welcomed her first child, Max Liron Bratman, with ex-husband, Jordan Bratman, and six years later, she gave birth to her daughter, Summer Rain Rutler, with fiancé Matthew Rutler. Lately, Christina and Matthew have been getting more generous when it comes to sharing precious family moments on their Instagram accounts, including Mathew's recent post of Summer adorably holding a heart-shaped cookie that reads, "Love you." Read on for more heart-melting snaps, and then check out Christina's shocking Hollywood evolution.