The former Page 3 model showed off her fabulous figure in a saucy Daffy Duck swimming costume.
Rhian, 31, smouldered into the camera as she let her body do the talking.
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She teamed her racy swimwear with immaculate makeup, which accentuated her natural beauty.
Meanwhile, she wore her golden locks straight and resting just above her assets.
Rhian, who is engaged to actor Oliver Mellor, captioned the post: “Dessssspicable #DaffyDuck.”
It seemed like fans had never enjoyed the cartoon so much, judging by their comments.
One exclaimed: “So beautiful and so sexy,” while another added: “Holy duck.”
A third continued: “Hahahaha that’s amazing!”
Rhian is known for her sexy body shots and selfies.
She recently wowed fans again when she stripped to a sizzling sheer bra earlier this week.
The post again went down a treat with fans again, racking up more than 12,000 likes.
She also took another mirror selfie to show off her gym body in teeny lycra as she rocked a mega-watt smile.
Rhian captioned the post: “That’s my ‘been to the gym all weekend, can finally see my abs’ happy face #weddingprep #bridetobe #showmetheabs.”
The beauty has been engaged to former Coronation Street star Oliver since November 2014.