Miley Cyrus only recently got engaged but if rumors (and tabloids) are to be believed the singer is already planning to make Billy Ray a granddad.

“Miley and Liam really want to have a baby quickly,” a source tells Us Weekly. Surprisingly, fiance Liam Hemsworth (who’s rumored to be baby crazy himself) and Miley’s family are actually on board with Miles baby mania. “They are both mature and ready for this,” says the source, who’s supposedly close to the Cyrus clan. “Miley is 19 going on 40.”

Aw, jeez…I think I see what’s going on here. Someone should tell Miley that even if she gets knocked up tomorrow, she’ll be 20 by the time she gives birth and, thus, ineligible for Teen Mom.

(Photo: Pacific Coast News)