Get ready for your childhood to be pretty much RUINED. Apparently, while we were all thinking that Clarissa Darling had gone on to have a well-adjusted, nice life as Sabrina Spellman on Sabrina the Teenage Witch in the late nineties, Clarissa was actually off taking ecstasy at the Playboy Mansion in 1999, and making out with "manwhore" Jerry O'Connell. No, Clarissa, no!

Melissa Joan Hart revealed all of this and more in her new tell-all book, which is titled—get ready for this—Melissa Explains It All. They saw the opportunity, and they took it. The book isn't set to be released until October 29th, but Hart revaled some of the childhood-crushing info exclusively to Life & Style:

“I experimented with weed, Ecstasy, mushrooms and mescaline for about a year and a half,” Melissa admits to the magazine. One of her crazier adventures involved taking Ecstasy at the Playboy Mansion in 1999, making out with a girl in the limo ride home — and then heading to a Maxim photo shoot while still high! “That was my third or fourth time on Ecstasy,” she reveals.

Thankfully, her dabbling never led to addiction. In fact, when Paris Hilton offered her cocaine, she turned her down (a rep for Paris denies the claim). “I was kind of running with a bad crowd,” she explains. In the end, “I just didn’t enjoy taking drugs. I don’t like the loss of control.”

This is the Maxim photoshoot she's referring to, for the record—as expected, it is in fact the one photoshoot where she looks insanely high. Note, the pictures are pretty NSFW.

Hart also revealed some of her past Hollywood hook-ups, most of which are pretty much to be expected except one:

The actress also revealed past make out sessions with Jerry O’Connell (calling him a “man-whore”) and Backstreet Boy Nick Carter. But not all Hollywood hotties were on her lust list. She twice tried to kick Ashton Kutcher out of her parties for making 'smartass remarks.' “Ashton and I just didn’t get along,” she recalls.

Jerry O'Connell and Melissa Joan Hart making out is a really weird thought. This book is just going to be an uncomfortable read all the way through, probably. Will anyone ever be able to watch Clarissa Explains It All the same way after this?

[via Life & Style]