BRITNEY Spears' failed marriage to Kevin Federline has inspired an erotic book written by his aunt.
Diane Story has used the pair's two-year union as the basis for her tome 'Pop Baby Krissy Doucet', which follows the romance between Keenan Fazio and Krissy Doucet.
The teaser text for the book reads: ''The moment Krissy set her sights on Keenan, she knew he was amazing.
"Choosing him at the club was one of the best decisions of her life.
"Yet how can she compete with the beautiful Tara Butler?
"A woman from Keenan's past who understands his sexual desires.
"Would sharing Keenan in Tara's bed be their only option for love?''
Britney and Kevin started dating in 2004, got engaged in July that year and were married in September.
When they announced their engagement the backing dancer's ex-girlfriend Shar Jackson was pregnant with their second child.
Britney and Kevin had two sons, Sean Preston, six, and Jayden James, five, together before splitting in November 2006 and officially divorcing in July 2007.
The 'Hold It Against Me' singer is now engaged to Hollywood agent Jason Trawick, while Kevin is dating Victoria Prince - with whom he has an eight-month-old daughter Jordan.
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