Posted February 8, 201015 yr Jamie Lynn Spears has dropped her baby daddy — and is dating an older man. In the Feb. 15 issue of Star, on sale now, we report that the 18-year-old has moved on from Casey Aldridge — the father of her 19-month-old daughter, Maddie — and is dating 28-year-old James Watson, a well-to-do businessman, whom she met about a year ago. "They started dating last December," a source tells Star. "I don't think James cares at all about who she is; they really seem to like each other." So who is Britney's sister's new man? James — who's based in Hammond, La., about 35 miles south of the Spears family estate in Kentwood — owns a company called Advanced Multimedia Partners. "He installs communications equipment and high-definition TVs for large corporations," the source says. "James enjoys making money — and enjoys spending it too." Locals are hardly surprised that Jamie Lynn's been stepping out with a new man — while Casey, 20, has been spending most of his time in his family hometown of Liberty, Miss. "Even when she was pregnant, she didn't really see a future with him," a friend tells Star. "She only gave the impression of staying with him so long because it looked better in the eyes of the public." Pick up Star for the full story — including details about how they met and why Jamie Lynn's friends worry that James isn't right for her! Plus: A photo of James. E! News Video of story:http://tinypic.com/player.php?v=11havr6&s=6