Britney Spears' former minder wants to release a tell-all book about her "orgies and hot tub sessions" while on tour.

Fernando Flores - who previously launched a lawsuit against the 'Womanizer' singer claiming she sexually harassed him - is keen to unveil the secrets of her tour parties, and claims to have set up a $1 million deal with a publishing company for the rights.

He is quoted by The Sun newspaper as telling a friend: "Britney has a huge sexual appetite and from what she told me, her tours were an anything goes environment.

"I heard stories of threesomes, orgies, girls making out - things that would make your hair stand on end.

"She had a lot of young, attractive dancers around her on tour, and things would get crazy. There was drinking, DRUGS, steamy sessions in hot tubs, all sorts of things."

Fernando claims he once spoke to her directly about the events, and admitted to getting "crazy" with some girls in a hot tub.

He added: "I was in her bathroom and saw this picture of her in a tub with some girls. It was very sexual. She told me, 'That was on tour and s**t got crazy.' I asked what she meant and she said they all got it on. Her and the girls."

However, in recent years Britney - who is engaged to her former manager Jason Trawick and has sons Sean Preston, six, and Jayden James, five, with ex-husband Kevin Federline - has been changing her wild ways, and on her recent 'Femme Fatale' tour was reported to have banned junk food and alcohol from being in her presence.