Fitness expert Lucy left the ITVBe reality show in December 2013, and has since built up a successful business, Results With Lucy.
Speaking to the Daily Star on Sunday, Lucy said: "I could never see myself returning full-time. I don't know how they could do it.
"But if something big happened, say in Lydia's life, then I'd happily go back if the occasion was right. And if they ever did a big TOWIE finale I'd happily take part."
Last year, Lucy told Reveal that filming on the show started to become stressful.
"They're quite stressful, but I miss the socialising part of it," she told us. "I loved going out with the girls and catching up, but it does come with a lot of stress filming that show and that's the part I don't miss. I like being a viewer now."
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10 reasons why we want to be in TOWIE: