Emmerdale fans are reportedly "quite excited" to see character Moira, nicknamed Mucky Moira due to her steamy love scenes, get involved with Cain again.
Robb revealed to the Daily Record: "Last time we got together, there was a fridge scene, where he moved all his tools off his fridge and plonked me on it, and I remember me winding him up when I thrust him against the car.
"That went out on the 8pm slot, so they just got away with it but it worked.
"I think that's why they tried to recreate Cain and Moira. It works on screen and, in the feedback I get from the audience, people seem quite excited at the thought of me getting back with Cain."
The actress added that she and co-star Jeff Hordley are looking forward to their on-screen reunion.
Robb said: "We are both really excited about what is coming into the scripts next.
"It's a cat and mouse relationship but it is going to have legs this time."
Hordley recently revealed that he thought it would be "very interesting" if Moira and Cain fell in love.