Simone Holtznagel shows off her ample cleavage in a stunning colourful silk dress

Simone Holtznagel shows off cleavage in a low-cut dress as she dines at Justin Hemmes' restaurant

Sisters Madeline and Simone Holtznagel sip wine on the balcony of Justin Hemmes' Coogee apartment

Simone Holtznagel shows off her sensational curves and ample cleavage in a mint green string bikini