Victoria and David Beckham love to ''poke fun'' at one another.

While the fashion designer - who has children Brooklyn, 15, Romeo, 11, Cruz, nine, and Harper, three, with the former soccer star - takes herself seriously when she is working, she and her husband love nothing more than to make each other laugh.

She said: ''David and I tease each other a lot. Yes, you have to take yourself seriously professionally, but we also poke fun at each other.''

Victoria credits her husband for giving her the ''security and encouragement'' she has needed to progress in her career.

She said: ''I wouldn't be where I am without David. He gives me the security and encouragement to do what I do. I do the same for him.''

Victoria turned 40 in April but wasn't upset about reaching the milestone age as she has achieved so much.

She told Britain's Vogue magazine: ''I looked at it and said to myself, 'I have four incredible children, an incredible husband, a business that's doing very, very well.' I've worked hard and achieved a lot. I don't think I could have achieved much more.''

Looking back on her teenage years, the only thing the former Spice Girls star would change is her lack of confidence.

She said: ''I've always worked hard and had a lot of fun so there's nothing I would change. But I was very self-conscious... My weight was always up and down and my skin was always a problem.''