The footage, obtained exclusively by Daily Mail Australia and said to be taken on Christmas Eve, shows Jess chilling on her couch holding a bottle of champagne around 3am.
Scantily clad in a skintight t-shirt and minuscule hot pants, the MAFS meltdown queen is sitting beside a man to who she cheekily whispers: "You show me your areola first."
The camera then pans to the mystery man, identifying him as Telv, who smiles and takes a sip of champagne.
Dan was the first to drop details of the betrayal.
“[Telv] messaged me on Instagram saying they hooked up just before Christmas,” Dan told Yahoo! Lifestyle, which Telv backed.
“I really did have no idea whatsoever [that Jess was in a relationship],” Telv also told Yahoo! Lifetsyle. “Dan seems like a really good guy. I feel for him.”