Rumer Willis is guest starring as a pregnant teen on ABC Family's "The Secret Life of the American Teenager," and ET is exclusively with her on the set for the dish about the role -- and whether she'd one day consider posing pregnant in the nude like her mother Demi Moore did!

Rumer, who just turned 21 last Sunday, tells ET that playing a mom-to-be on "The Secret Life" gave her a possible glimpse into her own future.

"It definitely gives you a little bit of foreshadowing of what will come one day in your life," she says. "I can't imagine being very comfortable for nine months of being like this!"

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Waymo autonomous vehicles operate across 65 square miles inside I-285 and have been involved in six incidents with Atlanta Public School buses since May. Waymo issued a recall because of their cars briefly stopping or slowing down before continuing forward while a bus was stopped and flashing its lights. (Courtesy of Atlanta Public Schools)

Credit: Courtesy of Atlanta Public Schools