"I can't maintain my sanity unless I have sex at least three times a day," said head nurse Rio, whose libido was so strong that it was beyond the capabilities of most men. The stress of her demanding job exacerbated her intense sexual desires, and eventually, even her casual sex partners left her. ...Disappointed, Rio knew she was in a hospital. There were plenty of patients with pent-up sexual desires. While making her nighttime rounds, Rio searched for her next partner...