You have probably heard about sexual disorders like premature ejaculation and erectile dysfunction. But did you know that there's a sexual disorder that makes people have sex while they're asleep much like sleep walking or bed wetting? We don't think so. Strange sexual disorders are often unknown as they are not as common. Here are some of them: Priapism or 'prolonged erection' While a lot of men complain about not being able to have an erection men with priapism have the opposite problem. Priapism is a condition in which a person has a erection for four hours or more without