EMMERDALE’S Zak Dingle gets caught smooching his secret mistress Joanie Wright, this Christmas Eve.
The sordid affair is set to be exposed in an an explosive plot twist – which sees Belle spot the promiscuous pair in a passionate clinch.
The first pictures have been released which show Belle walk into her kitchen only to find Zak, played by Steve Halliwell, and Joanie, played by Denise Black, sharing a secret smooch.
The troubled teen then flees the scene – shocked at what she’s seen.
The storyline could leave Zak’s 17-year marriage to Lisa in tatters – if Belle chooses to tell her mother the truth.
It’s not yet known whether Belle exposes the affair or not, but according to actress Eden Taylor-Draper, who plays the youngster, her alter ego might drop the bombshell on Christmas Day.
Speaking to Digital Spy, she explained: “It really destroys Belle, especially because her mum and dad have been together for so long. She’s never really seen them unhappy as a couple, so this really affects her.”
Having discovered Joanie is Zak’s other woman, it’s no surprise Belle begins to resent her.
Eden said: “Joanie becomes her worst enemy. As far as Belle is concerned, Joanie has come into her family and broken it.
Before this, Belle had grown very close to Joanie and Kyle. She’s welcomed both of them into the family and I think that’s what hurts most.”
It all becomes too much for the actress’ character as she struggles with how to deal with what she has witnessed.
“One part of her wants to make sure that Lisa knows exactly what Zak has done and what he’s capable of. On the other hand, she doesn’t want to hurt her mum and she knows this will really devastate her,” she added.