The couple - who already have two daughters, four-year-old Isabella and two-year-old Gia, as well as Luciana`s daughter Alexis, 11, from a previous marriage - have revealed they are "thrilled" to have added another girl to their brood. Stella Zavala Damon was born on Wednesday (20.10.10) in New York according to a representative for the couple. The representative told People: "Mom and baby are both healthy. The whole family is thrilled." The 40-year-old star explained earlier this week that this baby would be the couple`s last. He said: "This is it. Our lives are full and wonderful and we`re done having kids. Lucy is in her third trimester for the fourth time and I think that`s about enough to ask of any woman. I don`t want to turn her into Ethel Kennedy!" Ethel Kennedy had 11 children with her husband, late American Senator Robert F. Kennedy - the younger brother of assassinated US President John F. Kennedy. Matt also spoke about how becoming a father had helped him avoid the pitfalls of fame. The Oscar-winning actor said: "It`s pretty easy to kind of lose your way. I think working consistently with great people is really helpful. Also having kids is really helpful. They kind of disabuse you of the notion of your greatness pretty quickly. There`s a routine that you get into with kids that precludes you from going back to your single days. I`m probably more boring than I used to be. I go to bed earlier and I get up earlier."