Rihanna left little to the imagination in a g-string one-piece as she waded in a pool of water in Rio de Janeiro, Brazil on Thursday

She recently posed topless for a Vogue photo shoot in Brazil.

And Rihanna continued her racy streak on Thursday with a titillating bath in a tropical pond.

The 25-year-old left little to the imagination in a low-cut thong monokini as she took a dip in the water in a botanical garden in Rio de Janeiro, Brazil.

Bathing beauty: Rihanna left little to the imagination in a g-string one-piece as she waded in a pool of water in Rio de Janeiro, Brazil on Thursday

The singer showed off her toned figure in the revealing one-piece, which featured a plunging front and G-string bottom.

The swimsuit was high-cut in a Nineties fashion, showcasing Rihanna's shapely hips.

She wore her dark hair in cascading curls over her shoulders and added a pop of colour with fuchsia lips.

Risque: The 25-year-old showed off her toned figure in the revealing one-piece, which featured a plunging front and G-string bottom

Smoke break: In one shot, the star threw her head back as she puffed on something

Idyllic setting: Rihanna was enjoying a dip in a pool at a botanical garden

In one shot, the star threw her head back as she smoked something.

Rihanna was then waded through the brown pool of water, confidently displaying her pert derriere.

When it was time to go, the Barbadian beauty was seen putting on an off-the-shoulder denim top while she chatted to somebody off-camera.

Looking good: Rihanna was then waded through the brown pool of water, confidently displaying her pert derriere

Looks uncomfortable: Rihanna arched her back dramatically as she smoked
Rihanna was seen last week posing topless for the Brazilian edition of Vogue on the island of Angra dos Reis.

Just small strips of tape obscured the singer's nipples as she stood posing on the sand in the shots.

For one series of pictures Rihanna wore a pair of gold boy short bikini bottoms, which she teamed with armfuls of bangles, and a colourful headscarf.

Getting chilly? Rihanna was then seen putting on a denim top as she got ready to leave

Natural beauty: Rihanna's doll-like features were highlighted with her bright pink lipstick

What did you say? Rihanna looked to be chatting with someone off-camera

In addition to taking part in the photo-shoot, Rihanna has been in Brazil for a series of meetings with her latest collaborating partner Shakira.

The duo dropped their new song, titled Can't Remember To Forget You, on Monday to much fanfare from their respective loyal fans.

Both women took to Twitter in the early hours to promote the single, with RiRi counting down to its debut in full on KIIS FM's popular On Air With Ryan Seacrest breakfast show.

'Me and @Shakira finally teamed up on a record and it comes out in 10 min! @OnAirWithRyan,' the Barbadian beauty wrote in the lead-up to its 6am release.

Busy lady: In addition to taking part in the photo-shoot, Rihanna has been in Brazil for a series of meetings with her latest collaborating partner Shakira