The blonde bombshell, who plays Eva Price on the ITV soap, stripped down to a see-through swimsuit for a sizzling shot.
Catherine took to Instagram for the scorching post.
It saw her resting on her knees as she posed in the black cut-out swimwear.
The star meanwhile wore her long locks poker straight.
She finished off her look with chic mirrored sunglasses.
Catherine, 33, captioned the image: “A few last rays! Loving the laser cut vibes, so cool!
“Got a feeling that I might look like a giant waffle when I take this swimsuit off.”
Fans left tons of gushing compliments in the comment section.
One wrote: “Absolutely gorgeous, do naturally beautiful.”
Another joked: “Giant waffle lol you look amazing.”
A third cheeky follower added: “So horny.”
How rude of him.
The beauty also posted a snap of herself doing beach yoga.
The star wowed fans with her backyard bikini strip.