The mother-of-three kept close to her cast mate Olympia Valance of Neighbours fame.
The two put on a tactile display, stroking each other's hair whilst sharing an intimate chat.
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Cass, 47, was also spotted grabbing onto Olympia's bum and wrapping her arms round the petite star in an affectionate embrace.
Olympia - who is the younger sister of singer Holly Valance - showcased her enviable physique in a matching red workout set.
She highlighted her pert derriere in firetruck hued leggings and accentuated her natural beauty with a full face of makeup.
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