The Lethal Weapon 2 star, whose fourth marriage to DJ Jeremy Healy fell apart in February (10), is in negotiations with publisher Harper Collins to release an autobiography documenting her colourful life, according to Britain's News of the World.
A source tells the publication, "It promises to be explosive stuff. Failing a miraculous reconciliation with Jeremy, he can expect to find it painful reading.
"A lot of people will be very nervous about what she has to say."
Kensit has enjoyed a series of rock 'n' roll husbands - she married Gallagher at the height of his Oasis fame in 1997, after her failed marriages to Big Audio Dynamite frontman Donovan and Simple Minds singer Kerr.