They were not disappointed as a nipple did slip as this video illustrates:
Update: observant viewers are pointing out she’s wearing a plastic protector like Megan Fox in her topless shoot.
LeAnn Rimes has spent a fortune on fitness trainers, so she likes to show off her sculpted body.
This time LeAnn decided to show off her perky breasts, which for some reason come with subtle stretch marks.
The interesting bit here is that Rihanna actually shared the photo herself. I guess she wants to be accepted as a serious nipple slipper and not some amateur who relies on casual shots by strangers.