The 38-year-old has been taking several trips down memory lane on Instagram recently, as she shared a number of throwback snaps.
Yesterday, the model sent temperatures soaring as she posted two racy captures from a photoshoot for GQ Magazine back in 2010.
The Loose Women star stripped off into a patterned red bra for the capture, which drew attention to her voluptuous cleavage.
Showing off her toned stomach, Kelly teamed the look with a pair of minuscule denim hot-pants.
In one capture, the star stretched her arms through her hair as she struck a sultry pose.
Flaunting her trim waistline, the This Morning reporter smouldered sexily towards the photographer.
She wore her brunette locks in voluminous tousled waves, which cascaded around her body towards her bust.
Enhancing her stunning features, Kelly opted for dramatic smoky eye make-up, as well as a slick of pale pink lipstick.
The upload left some fans convinced that Kelly bore a striking resemblance to a young Raquel Welch, now 77.
“You look like Raquel Welch in that picture,” one person insisted.
Another told the star: “Sometimes you look more like a young Raquel Welch than she did.”
Other social media users could barely believe their eyes, and rushed to shower the star in compliments.
One fan enthused: “More Phenomenal than ever!!!”
A second admirer swooned: “Hottest woman in the world!!!!”
Moments later, Kelly shared a second snap, which saw her lounging on some grass in the same outfit.
Taking the racy photoshoot up a notch, the stunner sent eyes popping as she unbuttoned her shorts.
The Rochester-born beauty teased onlookers as she placed a hand over her private parts, while parting her mouth in a very alluring manner.
The star pulled a flower towards her face for the shot – resting the stem over her lower lip.
Earlier this week, Kelly shared a very sultry selfie with fans, before admitting she was suffering from a very uncomfortable issue.
The star, who is currently on holiday in Spain, went on to explain she was beginning to overheat while waiting for a delayed train with her boyfriend Jeremy Parisi.
Clearly fed up about the transport problem, she told fans she was experiencing sweat beneath her bust, as she added the hashtag “UnderT*ttSweat” to her post.