Simone and Madeline Holtznagel risk wardrobe malfunctions at Charlotte Tilbury event in Sydney

Justin Hemmes, 50, can't keep his hands off his girlfriend Madeline Holtznagel, 27, at Cartier event

Model Madeline Holtznagel, 26, dotes on her boyfriend Justin Hemmes' daughter

Justin Hemmes' girlfriend Madeline Holtznagel wears tens of thousands of dollars worth of jewels