Katie Holmes and Tom Cruise at his son Connor's baseball game in Cali (05/24/06)

Victoria Beckham is giving her friend Katie Holmes tips on how to shift her post-baby bulge.

New mum Katie, 27, has already recruited a company called Buff Brides to help her get in shape for her wedding to movie star Tom Cruise.

But now she has turned to the super-slim ex-Spice Girl who has given birth three times - to Brooklyn, Romeo and Cruz.

A friend told Reveal magazine: "Victoria and Katie are really good friends, and Posh knows just how to get back in shape after having a baby.

"She got her figure back within weeks of giving birth to Cruz. So Katie thought Victoria was the perfect person to ask about shifting her baby weight."

The Batman Begins actress and Victoria have bonded over the past year after being introduced by Mission Impossible star Tom at a Real Madrid game in Spain.

Katie has been on a punishing gym regime since giving birth to Suri in Los Angeles last month.