Victoria Beckham: "I'm a bit of a bookend"

Spice Girls star Victoria Beckham claims she's not the leader of the hit girl group, in fact, far from it.

"Geri and Mel B both like to be in charge," she says, "I'm a bit of a bookend."

Beckham, 33, says she's loving being back with the girls again - because, she says, it's comforting to have them around.

"They're like my security blanket," Victoria, 33, told Ryan Seacrest on his Capital Radio show.

Posh also talked about her husband, David Beckham's frustration with injury this year and the treatment he's received on his knee and ankle.

She also spoke of her Father-in-law Ted Beckham's cardiac arrest as a massive shock.

Meanwhile, David Beckham, 32, might have to skip the Spice Girls reunion tour - because he wants to take care of his father.

A source said: "Ted is still very weak. He's having trouble breathing and can't work at the moment."

"David wants to spend most of December and January with his dad to make sure there's no stress which could bring on another heart attack."