Showbiz
Most Wanted / Rex Features
The former Beverly Hills 90210 star gave birth to the couple's son Liam Aaron in LA last March.
A friend told In Touch Weekly: "They have been having so much fun with Liam, they couldn't wait to have another [child]."
The Oxygen network has announced a third season of the couple's reality TV show Tori & Dean: Inn Love.
The pair recently gave up the California guest house they had leased for the first two seasons and will be seen moving back to Hollywood as the next series opens.
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