She posted the pic on her page yesterday as an ad for her Fenty Beauty collection. Guess when you're as popular and beautiful as Rihanna you don't need to hire any models.
In the pic Rihanna is topless with her hands covering her chest, while staring into the camera.
I know the title is juicier than it sounds and since you are here to see Rihanna doing something really hot... Look at the reactions, I'm dying from laughter!