The 28-year-old former TOWIE star changed her header photo on Twitter to one of model Carmen, 42.
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Despite claiming she was simply uploading a photo of her idol, users hit out her and accused her of trying to pass off Carmen's body as her own.
Laughing the whole thing off, Lauren posted: "Paahahahaha-as if I wld pass myself off as Carmen Electra! For a start there is a slight different in our bust size… #BodyIdol #Inspiration.
"Must've been a really interesting story for people to read."
She then retweeted a fan who'd responded: "Jealousy's a funny ol'thing!!!"
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A spokesperson for Lauren told the Mirror: "Anyone that follows Lauren knows that she loves Carmen Electra and has openly spoken about her as a body idol.
"She has never once suggested or insinuated and nor would she, that the picture is her – it is nothing more than a tribute to a woman whose body she admires."
This new claim comes after Lauren almost faced legal action earlier this year, when she posted a photo of US model Carmen Ortega.
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Her followers on Instagram thought she was trying to insinuate that the photo was of her.
But at the time Lauren insisted she'd had the photo sent to her by a friend and uploaded it because she was told there was a resemblance between her and Carmen.