The Love Island star, 24, showed off her jaw-dropping body when she turned up at Café De Paris in Piccadilly Circus to celebrate a friend's birthday.
Cally flaunted her impressive abs in a striking burnt orange bralet (that left very little to the imagination).
She teamed the lacy, harness detail bra top with a neck choker, pair of super-tight black skinnies and knee-high boots.
Even better, if her fans want to copy her look the top is a bargain £18 from misguided.co.uk.
The former dental nurse took part in the first series of Love Island in 2015, and made it to the final week in fourth place alongside events company owner Luis Morrison.
The series was eventually won by Jessica Hayes and Max Morley, but Cally and Luis are still a couple one year later.
They are the only couple who are still going strong since filming wrapped.
Love Island made its return last year, after first hitting our screens with its celebrity version over 10 years ago.
On 14 February 2016, it was confirmed that Love Island would return for a second series due to air later this year.
Caroline Flack will be back to present it.
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