Speaking to Reveal at last week's MOBO Awards, Amy even described Lauren as "amazing" for the fact she happily shares half-naked shots with thousands of fans.
"I have seen the selfies, and you've got to give it to Lauren - she's so confident," Amy said. "How amazing that is, to be that confident?"
Lauren, whose weight has yo-yoed over the years, recently tweeted a picture of herself in nothing but a black dressing gown strategically placed over her nipples and private parts.
She said, "I make a mess when I get ready," before later claiming to have received marriage proposals.
Lauren tweeted: "This selfie had caused a bit of talk today. It sparked a bit of a debate. I've had love, hate proposals, pics and love letters."
But outspoken Lauren, who isn't one to be deterred by the backlash she received from her followers, later posted another shot, this time of her bare bum in a teeny purple thong. Just in case we hadn't seen enough.
Meanwhile, Amy - who left TOWIE after its second series - has previously praised Lauren's curves, labelling the fellow beauty entrepreneur's figure 'amazing'.
In 2012, when Lauren posted a series of racy shots following her weight loss, Amy said: "She has been slated recently for her weight and the clothes she wears, with many people saying they are too small for her.
"She isn't as big as people make out. She's got curves and looks amazing. It's just a shame Lauren feels she needs to prove a point by posting the picture because I don't think she has to. She should be proud."
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