Bruce Willis and wife Emma Heming expecting a baby

Bruce Willis' three daughters with ex Demi Moore are all grown up, but he better get his baby books out again as his wife, Emma Heming is pregnant with their first child.

Bruce Willis and Emma Heming are pregnant / WENN

The 56-year-old actor married the 35-year-old designer and model in March 2009, and two will become three when their little one arrives.

Bruce's rep told People the couple are: "overjoyed with this news and they look forward to welcoming this newest addition into their family."

His three children, Rumer, 23, Scout, 20, and Tallulah, 17 will become big sisters to Bruce's new baby.

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The actor's ex-wife, Demi is not in such a state of martial bliss following accusations about her hubby Ashton Kutcher's recent fling.

Let's hope some of Bruce's good mood can rub off on Demi.