[bbfan1991]

Coronation Street's Sally Webster is to become embroiled in Frank Foster's dark storyline later this year, a report has claimed.

The mum-of-two, played by Sally Dynevor, falls for Frank's charms when he offers her more responsibility and a 30% pay rise if she quits her job with Carla Connor (Alison King) and starts working for him instead, according to The People.

It is thought that the plot twist occurs as Frank seeks revenge on Carla after she reports him for rape. With his professional and personal relationships with Carla both over, Frank reportedly takes away his half of the business and starts trying to steal her staff.

Sources say that Sally is quickly wooed by Frank (Andrew Lancel) and even ends her relationship with Jeff Cullen to be more than just his employee. However, when Sally ignores a warning from Carla to be careful, viewers will apparently be left to wonder whether she could become Frank's next victim.

One insider told the newspaper: "Carla tells her, 'I don't blame you for taking up his offer. Good luck. But be very wary of Frank, love. He might come across all sweetness and light and act like a little boy lost. But the truth is he's a vicious violent rapist, nothing more, nothing less'."

They added: "Sally thinks she is finally getting somewhere but Frank's got a very different and much darker agenda."

Viewers have already seen Frank try to rape Maria Connor when she visited his home for a business meeting, but she managed to escape his clutches and the police decided not to pursue the matter.

Meanwhile, Frank's attack on Carla is expected to air next month.