Playboy mogul Hugh Hefner renewed his proposal to Ashley and Mary-Kate Olsen to pose for his magazine, after he was turned down three years ago when the twins were barely legal, Star magazine reported.

The 81-year-old ladies' man approached the twins three years ago, and got rejected. Now he reportedly asked them to bare it all for the June issue of his mag.
"Hef thinks the twins are every young man's fantasy," a source was quoted by Star magazine as saying.

But according to insiders, the Olsens are holding out for a more classy magazine deal, telling Star, "They're all about high-end fashion these days. They want to do Vogue."

Moreover, things between the two sisters aren't going so well, and Ashley is jealous because Mary-Kate is getting all the acting roles.

In the meantime, the twins announced the release of a coffee-table book called "Influence," which will include "exclusive photographs of Ashley and Mary-Kate from world renowned photographer Rankin, and a wide variety of other never-before seen materials and interviews from Mary-Kate and Ashley’s personal collection."

The book will also feature the names of business and fashion worlds that influenced the twins' lives, such as French shoe designer Christian Louboutin, Lauren Hutton and fashion designer Bob Colacello. According to Ashley Olsen, the book will contain "the most interesting, challenging, creative people we know-the ones who helped pave the way for us and our generation."