Melissa Joan Hart always struck us millennials as a wholesome goody-two-shoes with her roles in Clarissa Explains It All and Sabrina, the Teenage Witch. But behind the scenes, she was indulging in drug experimentation and wild partying, as she reveals in her new tell-all memoir.

The actress gave Life & Style a preview of the book, Melissa Explains It All: Tales from My Abnormally Normal Life — which hits bookstores on October 29 — and dished details about her wild past.

"I experimented with weed, Ecstasy, mushrooms, and mescaline for about a year and a half," she reveals, recounting that she even got high at the Playboy Mansion in 1999, made out with a girl in a limo, and headed straight to a Maxim photo shoot! "That was my third or fourth time on Ecstasy," she says.

Luckily for Melissa, the experimentation never became a dependency and she eventually decided she had had enough — reportedly declining an offer of cocaine from Paris Hilton at one point.

"I was kind of running with a bad crowd," she elaborates. "I just didn’t enjoy taking drugs. I don’t like the loss of control."

These days, the 37-year-old is married with three kids — and she's back in our living rooms every week with the TV Land sitcom Melissa & Joey.

Are you surprised to hear of her debaucherous past? Let us know your reaction in the comments below!

Source: Life & Style

Dan Clarendon is an assistant editor at Wetpaint Entertainment. Follow him on Twitter and Google+!