McCormick Tells All About 'Brady,' Drug Addiction

Marcia, Marcia, Marcia.

circa 1972: The Brady family, from the television series, 'The Brady Bunch'. Top row (left to...

circa 1972: The Brady family, from the television series, 'The Brady Bunch'. Top row (left to right) Maureen McCormick/BEVERLY HILLS, CA - JULY 09: Actress Maureen McCormick of "Outsiders Inn" during the 2008 Summer Television Critics Association Press Tour for MTVN held at the Beverly Hilton hotel on July 9, 2008 in Beverly Hills, California.

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Fans of "The Brady Bunch" know Maureen McCormick as Marcia Brady, the wholesome older sister on the classic sitcom about a blended family. But in her new memoir, "Here's the Story: Surviving Marcia Brady and Finding My True Voice," the actress writes of her romance with TV sibling Barry Williams, who played Greg Brady, dates with Michael Jackson and Steve Martin, and her many addictions.

Things became hot and heavy while McCormick and Williams were filming episodes in Hawaii.

"We couldn't hold back any longer," she writes in the book published by William Morrow. "It was our first kiss, and it was long, passionate and deep. It was wonderful, too, though as we continued to kiss and press against each other so closely that we could feel each other's body heat, a part of me — a tiny part, admittedly — said to myself, `Oh my God! I'm kissing my brother. What am I doing?'"

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Now 52, McCormick — who endured a battle with drug addiction and depression — also discusses her dates with Martin and Jackson. It was several years after "The Brady Bunch" ended that McCormick went out with Martin, who had asked for the actress' phone number through friend Chevy Chase.

"I remember him being a very good kisser," McCormick writes about Martin. "But I was insecure and either high or spaced out (most likely both), and I didn't laugh at his jokes.

"Though Steve was too polite and confident of his talent to say anything, I'm sure my inability to carry on a normal conversation or respond intelligently put him off," she writes. "We never spoke again after that date. I've always regretted my behavior because he impressed me as an extraordinary guy. I would've enjoyed a second date."

McCormick's time with Jackson was innocent. They met while she was starring on "Brady" and he was part of the Jackson 5.

"Once we went ice-skating and he held my hand as we glided around the rink," the book recalls. "I wondered if he might try to kiss me, but he didn't. After another outing, he did give me a kiss goodbye. But it was only a gentle peck on the cheek."