In a now groundbreaking and often referenced paper "Why Humans Have Sex," Cindy Meston and David Buss asked over 700 individuals to list the reason why they last had sex.  Well, get ready for some spoken word poetry as Dr. Casperson reads all 237 reasons out loud.  Pay attention to your thoughts and judgements as your brain will tell you what you think the right and wrong reasons are!  Our biases are strong, but as they learned, there is not just one reason!