Sarah Palin's daughter is headed back to reality TV and mom isn't ruling out an appearance herself, TMZ reports. Stopped at LAX Friday, the reality-show veteran says Bristol will "be a great messenger" on Teen Mom OG. "Yeah, Bristol's gonna be a great messenger for kind of overcoming a little bit of challenge and doing well in life," says Sarah, per E Online. "[Bristol] sees this as a venue, as a forum for good, to help people in a hurtin' world so I encourage her to do this." The young Palin—who was divorced by husband Dakota Meyer after they had two girls, now ages one and two—will replace ex-cast member Farrah Abraham, who says the show cut her because she's an adult entertainer, the Huffington Post reports. (More Sarah Palin stories.)