Simone Holtznagel and Jono Castano look smitten during playful game at the gym

Simone Holtznagel and boyfriend Jono Castano step out for a brunch date in Bondi

Stunning model Simone Holtznagel declares her love for celebrity trainer Jono Castano

Simone Holtznagel sports wild hair at launch for Sally Obermeder's vitamin range