In a blatant swipe at the blonde bombshell, the feisty Filipina commented on a photo of Jess at Nova radio's MAFS party implying she has trouble telling the truth.
The radio show said Jess was surprised by them bringing out the "honesty box", to which Cyrell chimed in: "She's shocked because she wouldn't have a clue how to be honest."
But it's not the first time the outspoken women have exchanged heated words.
Have you seen what's in store for the reunion?
In March, viewers were treated to the most explosive fight ever when Cyrell sold Jessika out by revealing her adulterous intentions with intruder groom Dan Webb.
Demanding to know why Jess wanted to keep her TV husband Mick Gould around Cyrell said: "You told me a few dinner parties ago that you wanted to f**k Dan."