The Bajan songstress is no stranger to stripping off and posing provocatively, but this time it looks like she has taken things to the next level in barely there clothing and an old Hollywood style wig.
Over the weekend, RiRi teased fans with snapshots from the visual for 'Pour It Up' and although they were pretty sexy, they aren't a match for the pictures she uploaded on Monday night (30 September).
In these new behind the scenes snaps, she can be seen rocking a diamond encrusted bra that barely covers her breasts and looks strikingly similar to the costume she wore for carnival in Barbados earlier this year.
She has teamed the jewelled bra with a pair of denim shorts (if you can call them that!) that appear to simply consist of a waistband, a crotch and pockets.
Visible underneath the denim bottoms is a lacy red thong and in some pictures, her waistband has even been stuffed with dollar bills.
RiRi's outfit is completed with a pair of black leather gloves, sunglasses and platform heels - although she is barefoot in some photos.
The 25-year-old pop princess is sitting on a gold throne that is covered in fur and surrounded by water and is seen pulling a variety of x-rated poses, which have been captured by her best friend Melissa Forde.
Since Rihanna is treating her fans to so many behind the scenes images, it may now be safe to assume that a music video for 'Pour It Up' is definitely on its way soon.
Last month it emerged that RiRi had parted ways with the original director of the video, Vincent Haycock, due to "creative differences", leaving many wondering whether the visual was ever going to be released.
However, it seems as though she found herself a new director and got straight back to work on what appears to be her raciest video yet.
There's even supposed to be a jaw-dropping cameo from well-known exotic dancer Nicole 'The Pole' Williams.
If the access all areas Instagram photos are already causing such a stir, we can only imagine what effect the video itself will have!
'Pour It Up' is taken from Rihanna's current album, Unapologetic.
What do you think of RiRi's raunchy image? Let us know in the comment box below, as the best comment each week wins £50!