Britney's mum to reveal drugs, sex past?

Lynne Spears's new book will allegedly reveal details about Britney taking drugs and losing her virginity.

Through The Storm apparently claims that the popstar was drinking at 13 and that she first had sex when she was 14.

According to Metro, Lynne believes her daughter first made love with an 18-year-old football jock, shortly after leaving The Mickey Mouse Club.

She will also claim that Britney began taking drugs during recoding sessions for 'Hit Me Baby One More Time' in LA. It will reportedly say that the singer took cocaine and cannabis while on a private jet.

The book is published on September 16.