She might be keeping her relationship secret, but that’s the only thing she’s keeping under wraps.

R&B singer Cassie, the rumoured girlfriend of rapper Sean Combs (aka Diddy), chose a white bikini to show off her sensational beach body in Miami on Saturday.

Opting for a green and white Brazilian-style ‘half’ thong bikini and matching top, 26-year-old Cassie wowed fellow beach-goers with her killer curves.

Diddy’s girl: 26-year-old Cassie waved for the cameras as she visited a beach in Miami on Saturday

The former model smiled and waved as she sauntered along the beach, stopping to cool off with an invigorating swim.

Not one to skimp on accessories, the songstress had heaped on the gold jewellery, wearing huge hoop earrings, multiple bangles, a thin chain necklace, ring and twin anklets.

Black RayBan sunglasses, simple flip flops and a silver bellybutton ring completed the look.

Flaunting her figure: The singer wore a green and white Brazilian-style thong bikini and white halterneck top

Beach bling: Diddy’s rumoured squeeze accessorised with lots of gold jewellery, including large hoop earrings, multiple bangles, a ring and a pair of matching anklets.

The Paradise singer lingered in the water, splashing herself before wringing out her long dark hair, which she famously wears in a stylish undercut.

Cassie, whose full name is Cassandra Ventura, didn’t arrive at the beach alone, choosing to spend her downtime with model best friend Kerry Morgan.

The pair were also seen at the beach on Friday, when Cassie modeled a barely-there taupe sting bikini.

Cooling down: Cassie beat the heat on the sweltering Miami day by taking a dip in the sea

Something to smile about: The R&B singer has been coy about her rumoured relationship with Diddy

Although Diddy, 43, was nowhere to be seen and despite the couple keeping details of their relationship out of the public eye, it is widely acknowledged that the pair are dating.

They were even spotted together at the launch party for the young hitmaker’s mixtape RockaByeBaby in April.

Known for her feminine but edgy style, Cassie has modelled for Calvin Klein, Adidas, Abercrombie & Fitch and Seventeen.

She was recently named as the face of Forever 21’s Summer 2013 collection.

Best friends: It’s the second day in a row that Cassie and model Kerry Morgan have flaunted their fabulous figures at the beach

Spotted! Cassie and Diddy were seen together at the launch party for her RockaByeBaby mix tape in New York in April

Read more: Daily Mail