I knew it, I KNEW it

Maureen McCormick, who played Marcia Brady on the hit 70s TV show, The Brady Bunch, has a book coming out next year in which she reveals she had an affair with her on-screen sister. Here's The Story, a tell-all documenting her well-publicized eating disorder and drug addiction, includes sexually explicit details of the relationship between McCormick and actress, Eve Plumb. A source says:

The most explosive comments will be how the then blonde, blue-eyed cutie developed a crush on Eve Plumb, which led to some sexual play. This book will certainly come as a shocker. While Maureen is not a lesbian, she reveals there were some sexual hijinks going on behind the scenes. It's bizarre because she played such a virginal character on the show."

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