According to Dr. Rosofsky, oysters are sexy for millions of reasons. "The connection to Aphrodite, their texture, shape, and their nutrients," says Rosofsky. They are high in zinc, which is thought to increase testosterone and, according to some reports, improve sperm quality. Rosofsky adds that oysters often dial up the romance since they are considered a luxury item and are eaten very seductively. "You suck, slurp, and eat oysters out of your hands." Or perhaps, someone else's hands? You get the picture.