London, Feb 7 : Brad Pitt has revealed that partner Angelina Jolie still possesses a naughty side, which is reserved only for him.

The 36-year-old actress once lived what she described as a `dangerous' life and was well-known for her dark and provocative nature.

But eventually the heavily tattooed star changed her wild image into that of a doting mother and humanitarian.

"She's still a bad girl," the Daily Mail quoted Pitt as telling on CBS `This Morning.'

"Delightfully so. It's not for public consumption," he added.

Jolie had once infamously wore then-husband Billy Bob Thornton's blood in a vial around her neck.

The Oscar winning actress also gave brother James Haven a passionate kiss on the lips at the 2000 Academy Awards and has spoken publicly about bisexual trysts.

She even had a lesbian love affair with her Foxfire co-star Jenny Shimizu, of whom she has said: "I would probably have married Jenny if I hadn't married my [first] husband [Jonny Lee Miller]."

However, the `Lara Croft' actress had earlier revealed in an interview with 60 Minutes that her inner bad girl now `belongs to Brad.' (ANI)