Patty's girl is all grown up! A provocative Lydia Hearst goes from demure screen siren to erotic queen at the Life Ball

She has carved a career in her own right as a model, despite being most known as the daughter of  kidnapping victim and publishing heiress Patricia Campbell Hearst.
But statuesque Lydia Hearst revealed she has truly grown up in not one, but two daring outfits at  the 20th Life Ball 2012.
The star studded event, which aims raise money for sufferers of AIDS, is known to attract the colourful and daring in Vienna, Austria.

Darling! Lydia Hearst looks sophisticated as pulls a classic movie star pose to the crowds

 

 27-year-old, who was named Best International Supermodel in 2008, arrived in a floor length black lace dress, with her signature blonde hair in loose curls around her face.
But on the runway, it was gone with the demure look and the model, and sometime actress, showed how exactly to model the erotic Agent Provocateur range.
In the past the star has been dubbed a doll for her elfin-like features but at the charity gala she made sure every inch of her image was less baby doll and more screen siren.

 

Screen siren: Lydia Hearst looked every inch the movie star in her daring black and scarlett outfit

 

 

Dare to shock: Lydia Hearst Showed off her provocative side in a lace dress on the red carpet, she then stripped to Agent Provocateur underwear for a revealing runway set

 

Smile: The sometime actress and model cracks a grin as she reaches the end of the runway

Actor Benedict Cumberbatch, 35, has been seen at a number of Hollywood parties with the  27-year-old model over the past month.Her great-grandfather was William Randolph Hearst, the newspaper magnate said to have inspired the megalomaniac central character in Citizen Kane.
Her mother was an apolitical 19-year-old American heiress when she was kidnapped by the Symbionese Liberation Army, a Left-wing guerilla group, in 1974.

 

Demure, yet daring: Lydia shows a flash of cleavage in the plunging dress which is offset by her hot pink lipstick)

 

Armed: Patty Hearst in 1974 with a machine gun

Her case grew even stranger when, during her captivity, she joined the SLA, denounced her former life, took the name Tania and carried out an armed robbery on a bank in San Francisco with other group members.
She was arrested the following year and during her trial it was claimed that she had developed Stockholm syndrome, the condition in which hostages begin to identify with their captors in order to make sense of what is happening to them.