If you thought you'd seen the sexiest side of Rihanna [1], you were wrong. The singer has dropped the video for "Kiss It Better," and it's so hot you might need to take a cold shower after watching it. She's the only one featured in the video, but you won't be complaining. It's simple, but it's crazy-sexy. Get ready for a lot of skin and, yes, some nudity. Take a look, and if you haven't yet, watch her "Work" video, featuring Drake [2].