Back in December , he took his mother to the set of "The Voice," so he could spend quality time with both of the women in his life -— his mom and Aguilera. In August , the former couple made nice for the sake of their son and enjoyed a family day at the beach together. Now busy with two kids, Christina recently revealed she and Matthew are in no hurry to get married. After graduating, he made the move to California to enter into the entertainment industry. Six months later, on February 13, , Christina made things more official with Matthew as she announced their engagement on Twitter.