The blonde bombshell, 33, smouldered for the camera as she donned a tiny white top which flaunted her flat stomach and tiny hips.
She paired it with a pair of blue knickers with white lining, leaving little to the imagination in the daring outfit.
Showing off a glimpse of her toned legs, Rhian looked gorgeous as she smouldered for the camera in the sultry picture.
Letting her blonde hair fall into glamorous curls on top of her shoulders, Rhian looked as stunning as ever in her latest social media display.
She finished the look off with dramatic eye make-up and a slick of pink lipstick, adding bubble pink nail varnish to the beauty look.
Holding up a can of her new fake tan, Rhian captioned the snap: "Getting ready to go out and I’m nicely tanned up with my very own @claritybyrhian.
"Clarity gives a perfect medium tan! It goes on clear and has all the nasties taken out of it making it super-friendly and hydrating to your skin.
"I’ve had so many messages about people loving it... try it for yourself…"
It didn't take long for the compliments to come pouring in for the model, as fans gushed over the scantily-clad display.
One posted: "Gorgeous, such glowing beauty."
Another added: "I didn't think it was even scientifically possible to be as beautiful as you are Rhian."
A third chipped in: "Cute undies."
A fourth wrote: "So beautiful and stunning lovely photo."
The Page 3 legend also admitted that she has put on half a stone during lockdown, but the weight has all gone to her chest.
She wrote on Instagram: "Has anyone else packed on a few pounds in lockdown? I’ve put on over half a stone and can’t for the life of me get motivated to go to the gym... but putting my gym gear on is a step in the right direction right?
"I wish I was one of those people that enjoys working out and running etc... I just like eating and laying down too much."