01/22/2014 08:52 EST | Updated 01/23/2014 07:59 EST

Rihanna Goes Topless On A Yacht, Makes Us Jealous (PHOTOS)

Here we thought Kim Kardashian liked to reveal it all!

Rihanna took North West's mom to the test when she posted a ton of sexy bikini photos on her Instagram on Tuesday, including a topless pic which she took on a yacht.

The "Stay" singer, who has been on what seems like a never-ending vacation a la Paulina Gretzky, is in Brazil mixing business and pleasure.

Just last week she took part in a photo shoot for a magazine (and took more sexy bikini photos, natch) and had a grand old time hanging out at the beach in Barbados with bestie Cara Delevingne.

Judging by her recent flurry of pics, which show the Barbadian beauty flaunting her bod on a surfboard, we're not gonna see RiRi change into more modest clothes anytime soon.

Keep doing your thang, girl!

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