Matthew McConaughey's model girlfriend Camila Alves gave birth to a son last night, his rep tells People. No name has been reported for the 7-pound, 4-ounce boy. "Oh, it's going to be fun!" the actor's brother Rooster told the mag. "He'll make a really good dad because he's got a lot of patience. I'm excited for him. It's about time." (More Matthew McConaughey stories.)