Tiffani-Amber Theissen sharing a lesbian kiss with Elizabeth Berkley? Lark Voorhies getting steamy and seamy with Mario Lopez?

It may have happened! And now, thanks to a new tell-all book being penned by Dustin "Screech" Diamond, we'll know all the sexy, dirty secrets from Behind the Bell.

According to People magazine: Dustin Diamond, 31, who played Samuel "Screech" Powers on the popular sitcom and its spinoffs from 1989 to 2000, has landed a book deal. In Behind the Bell, Diamond will dish on what he and his costars including Mario Lopez and Elizabeth Berkley did when cameras weren't rolling, according to New York magazine.

The book, which Diamond will pen with help from a ghost writer, will include "sexual escapades among cast members, drug use, and hardcore partying," the magazine reports.

Although we're hoping Diamond's revelations will be plenty dirty, we hope they won't be literally dirty and include any sort of Saved by the Smell style dirty Sanchezes.

And don't miss our exclusive video on who people think is the hottest Bell belle: Kelly, Jessie, or Lisa!