The 'Piranha 3D' star has dated hunks including action man Jason Statham and 'Titanic' star Billy Zane and she is now reportedly poised to tell all after signing a 200,000 pounds deal with publishing house Pan Macmillan, reported Daily Mirror.
"Kelly has kept quite guarded over the details of her past heartbreak and now, finally, she's ready to share her feelings with the world," a source said.
In the book, Brook will also reportedly open up about her devastating miscarriage in 2011, when she lost a baby with her ex-boyfriend Thom Evans.