[Scarlett.]

Coronation Street's Ken Barlow will reportedly be left shocked when he catches his son's fiancée in bed with her ex-husband.

The Sun reports that Leanne (Jane Danson) and Nick (Ben Price) are to be caught together, leaving Leanne's wedding to Peter (Chris Gascoyne) in doubt.

"Leanne is wracked with guilt over the affair," a source told the paper. "She loves Peter, she loves his son Simon and they've been through a lot together - but Nick was her first love and she never got over that."

Nick and Leanne will apparently grow closer when he hires her as the manager of his new bar, The Joinery.

The insider continued: "Ken (Bill Roache) knows Peter is no angel, but blood is thicker than water and his loyalty is to Peter. He's worried for his son and for little Simon.

"Leanne regrets her affair with Nick, but there is a chance if Ken doesn't blab, Nick will."

DS