The 42-year-old brunette announced last week that she had decided to “do something fresh and new” after 20 years with the company.
She will be universally missed after cementing her position as one of the most recognisable faces on TV.
But fans have not seen the last of Kirsty.
In a video posted on her Instagram account, the former pundit can be seen dressed in a flowing black dress before she turns to flash her upper thigh to the camera.
She then wiggles her bum before revealing a smile, using Insta function Boomerang.
“Back to work…exciting fitting for upcoming projects”
“Back to work…exciting fitting for upcoming projects,” she teased in the clip’s title.
And fans clearly loved it, too.
“Best of luck for your new projects, exciting times for you girl,” one wrote.
Another added: “Wow, a fine pair of legs. Stunning!”
While a third simply wrote: “Beautiful!”
Kirsty’s former on-screen colleague and fellow face of Sky Sports, Jim White, was clearly gutted at her departure.
He wrote last week: “Last Sky Sports News shift with my beloved Kirsty Gallacher tonight.
“She’s decided to leave to pursue other opportunities…a decade together on-screen, always a great chum.”
The video comes just weeks after Kirsty ditched her bra in a seriously sultry display.
But she also has the brains to match the beauty.
Alongside fellow stunning celeb, Rachel Riley, Kirsty won the biggest ever payout on The Chase at the beginning of the month.
The pair bagged a whopping £160k for Soccer Aid, who raise money for Unicef.