And things got a whole lot steamier during last night's dinner party as the adulterous pair shared a passionate kiss - despite both being married to other people.
Jessika, 26, and Dan, 35, were unable to contain their sexual chemistry any longer and slid away for a sneaky chat which quickly led to more.
The conniving duo also hatched a plan to stay with their respective partners - Mick and Tamara - so they could remain in the experiment and carry on their secret romance.
Father-of-one Dan spilled the details of their first on-screen kiss in an interview with 9Honey, confessing the moment was "magical".
WATCH: Jess and Dan are caught kissing! (again)
"It just felt right and it was raining, to my memory, which made it that of a movie scene."
The sensual scenes come hours after new photos emerged of the office administrator and car sales broker locked in a passionate embrace whilst holidaying on a Gold Coast beach.
The shots were captured in February more than two months after filming wrapped on the Channel 9 social experiment, indicating Jess and Dan are still in a real life relationship.
Meanwhile on MAFS, Jess' marriage to Queensland farmer Mick finally came to an end on Tuesday night's episode after Mick blasted her family's behaviour at their wedding prompting the blonde bombshell to call time on their ill fated relationship.