In sights set to air next week, Zoe’s character Rhona Goskirk will be forced into making an unconditional video by her fiancé Pierce Harris (played by Jonathan Wrather).
Zoe revealed she was felt uncomfortable at the idea of her grandmother watching the scenes.
“I wasn’t looking to the fore to them. It was an odd day,” she told Love Sunday magazine. “I was very clear on what I desire and wouldn’t wear, and the costume department were brilliant.
“We had a female impresario, camerawoman and a closed set, you don’t really see that much, it’s more the suggestion of what happens, but I was worrying thither my 93-year-old nan watching it. Sorry, Nan!
“I was glad my children didn’t ask what I’d been doing that day, and I came family feeling a bit weary.”
Pierce’s behaviour has become increasingly more hair-trigger over a period of months, culminating recently in viewers believing that he had raped Rhona.
The new incident begins when a tipsy Rhona comes home from Laurel’s (Charlotte Bellamy) underwear body and models her new lingerie for Pierce.
But Pierce takes things a step too far by dusting the routine on his tablet.
After waking up the next morning with a hangover, Rhona admits Pierce she does not what to watch the tape.
Showing his manipulative side, Affect keenly accuses her of being ashamed of their relationship and then finds a way for her already-concerned compeer Vanessa (Michelle Hardwick) to come across the video.
Emmerdale carry ons tomorrow night at 7pm on ITV.