The actress revealed she was heading out to the Manchester Fashion Festival and was dressed accordingly.
Posing in a light-up mirror, Catherine stood with one hand on her hip and looked radiantly at her phone to make sure she was getting a killer selfie.
She slipped her athletic figure into a little black dress that allowed her to showcase her chest.
The frock was fairly simple in design, in that it was just black, though the neckline added plenty of interest.
The dress was completely strapless but was structured well enough to keep Catherine’s mind at easy about any sort of wardrobe malfunction.
There was plenty of skin on show regardless, as the neckline started low as it was, but plunged even further.
“God girl you are goals”
This meant that Catherine’s cleavage was completely on display – and her followers were big fans.
One person told her: “God girl you are goals,” while a second wrote: “Love it, you look fab.”
Catherine went for a matching makeup look, having a dark wash of eyeshadow on her lids and a chic winged eyeliner.
She then went for a classic straight hair style, with a little tucked behind her ear.
The beauty has been on a fitness hype since leaving Coronation Street earlier this year.
She shared a look at her journey with fans this week in a series of gym photos and a throwback.
Catherine said: “It has been one of the most incredible experiences of my life. The knowledge I have gained for myself and my family is priceless.”