, 55, and Catherine Zeta-Jones
, 30, welcomed son Dylan Michael Douglas
into the world on Tuesday in Los Angeles. The new arrival the first for Zeta-Jones and the second for Douglas (he has a son, Cameron, from his first marriage to Diandra Douglas
) tipped the scales at 7 pounds, 7 ounces. The couple are engaged to be married, but a wedding date has not been set.