The TV presenter was snapped in Hawaii earlier this year wearing a two piece swimming costume. It marked the first time she had been seen in the figure-flashing attire in public.
Despite the star being slimmer in the past than she is now, the 28-year-old has grown to finally accept her body the way it is after receiving support from her current beau Matthew Mosshart.
"Kelly has never felt more confident with her figure and its all thanks to Matthew," a friend revealed to British magazine Heat.
"Matthew is always telling her how gorgeous she is, how he loves her curves, and how perfect she looks. As a result she is completely at ease in her skin for the first time."
In the past the daughter of rock legend Ozzy Osbourne has battled with negative body image. Kelly has also been the victim of criticism over her fluctuating weight, but since meeting vegan chef Matthew she has risen above any comments and started to believe in her own fabulousness.
"Matthew loves her for who she is and has told her she's just perfect," the friend continued. "It has made Kelly feel amazing, inside and out."
COMMENT RULES: Comments that are judged to be defamatory, abusive or in bad taste are not acceptable and contributors who consistently fall below certain criteria will be permanently blacklisted. The moderator will not enter into debate with individual contributors and the moderator’s decision is final. It is Belfast Telegraph policy to close comments on court cases, tribunals and active legal investigations. We may also close comments on articles which are being targeted for abuse. Problems with commenting? email@example.com