Hopefully, Rihanna has thick skin. The Barbadian beauty was fired by skin care company Nivea by C.E.O. Stefan Heidenreich. Apparently, the "S & M" singer's racy persona is way too much for Nivea, which wants to illustrate a squeaky-clean image. After pulling the plug on its partnership with the "Birthday Cake" singer, Heidenreich said that he fails to "understand how Nivea can be brought into association Rihanna." He added that "Nivea is a company which stands for trust, family and reliability." Rihanna is frequently photographed conducting herself in a manner that's likely in conflict with the message Nivea wants to send. Think more family friendly, less sultry stripper. Rihanna has been seen partying in exotic dance clubs, smoking weed on the beach and painting the town red in extremely revealing outfits that leave little to the imagination. In addition, the lines to her song are chock-full of sexual innuendos and graphic lyrics. Although Rihanna has never made any attempt to keep her wild child persona under wraps (or clothes for that matter), it appears that she was somewhat taken aback by Nivea's decision to give her the pink slip. She Tweeted a picture of Heidenreich with the words "No caption necessary."