Rihanna posts SEXY PHOTOS that show off her derriere in cutaway swimsuit

It was another day, another racy monokini for Rihanna.

The singer posted a picture of her in a daring cutaway swimsuit on her Instagram account on Saturday and it left little to the imagination.

The 24-year-old is currently in her native Barbados for Christmas and is taking advantage of the balmy climate to showcase an array of provocative swimwear….More pictures below: