The star is famously proud of her curves, but social media users were quick to criticise her choice of a tight floral dress for her TV appearance.
Offering her expert fashion tips on the fashion segment of yesterday's programme, Kelly wore a clingy pale blue floral dress to show other women how to sport flowery trends this summer.
'Today we are talking summer floral trends,' she told summertime hosts Ruth Langsford and Eamonn Holmes. 'Even I'm nerves about wearing flowery clothes! I love flowers and love my garden but we're showing women how to style them.'
As part of the regular segment, women appeared on the catwalk to model the trends styled by Kelly and the This Morning fashion team. All three seemed to be thrilled with their outfits, with one of them even going braless to show off the cami she wore, prompting Kelly to say, 'I have to wear a bra, don't know about you!'
However, the comment appeared to rub viewers up the wrong way, and they took to Twitter to express their distaste at Kelly's appearance.
'Kelly's t*ts are under her chin,' wrote one viewer, whilst another tweeted: 'What the f*ck does kelly brooke know about hiding things on her body? Everyone's seen everything!'
'Was pleased to #Lorraine had ditched Kelly Brook as a fashion 'expert' but now she's on #ThisMorning! Great!' said a third
Another asked: 'Kelly brook always wears dresses 2x too small for her... why would anyone take fashion advice from her?'
However, Kelly's army of loyal followers were quick to jump to her defence, with one writing: 'Look really good, very pretty dress 👗 don't let mindless idiots get u down!! Chin up!'
Another agreed: 'Kelly looking absolutely stunning wow, that's got me through this horrible rainy day thanks!'