I'm curious about how Victoria Beckham stays so skinny. I'm not alone. The media has long speculated about how Posh maintains her rail thin body. Well, it's not from diet pills, says the superstar, who will sue the U.K. magazine NOW over an article claiming she's hooked on them (and sex too).

Says the Brit's agent: "The accusation is dangerous, defamatory and blatantly untrue. Victoria takes her position as a role model to young women very seriously and is horrified by this hurtful, fabricated story. It is now with her lawyers."

Now's story claimed that the former Spice Girl's sister has been getting the pills for her in Britain and then shipping them to the U.S.

The 34-year-old Posh has been defending her weight for years, stating that she eats like a normal person. "As you can see, I'm a normal-looking girl, and I just make the best of what I have," says the wife of soccer great David Beckham and mom of three boys. "I'm not out-of-the-ordinary-looking at all -- I'm incredibly ordinary,"