The Sun reports that fresh from their latest run, ITV have already signed up the pair for another series.
And the new run will double the amount of episodes, seeing the pair on screen for at least 15 weeks.
It follows the show pulling in some of ITVBe's highest viewing figures of the year so far.
"Sam and Billie together are a winning team and the top bods at ITV are really overwhelmed with the viewing figures," an insider told the tabloid. "The show has been a massive success for the channel and the ratings have gone from strength to strength."
The insider added: "ITV know they're on to a winner and are hoping to lock the girls down on a multi-series deal.
"Producers are keen to follow Sam as she heads back to LA with her family as she focuses on growing her businesses Stateside."
Sources say that filming for the next series could begin within weeks and may start on TV as soon as July.
“After the last series brought in record breaking viewing figures, the channel is keen to keep the momentum going," the source added.
Billie Faiers and Sam Faiers' latest series of The Mummy Diaries wrapped up last month after eight episodes.