A source insisted to Us Weekly that Justin Timberlake and Cameron Diaz are not engaged. “You can tell that he knows she’s not The One,” a pal of the *NSYNC star tells Us Weekly, citing the actress’ hard-partying lifestyle. “Justin wants to have a wife one day and a family. He used to talk about that all the time when he was with [Britney Spears]. He never talks like that about Cameron.” In the meantime, the couple have been having fun at Timberlake’s home in Orlando, Florida.