High school sophomore Samantha "Sam" Baker struggles to go through the day on her 16th birthday, which her entire family has forgotten about because her older sister, Janie, is getting married the next day. She is also infatuated with a popular and attractive senior, Jake Ryan. At school, she fares no better when she finds out that a completed "sex quiz" which she tried to surreptitiously slip to her friend Randy, never reached her and, unbeknownst to either of them, was picked up by Jake. Despite her name not being on the quiz, Sam is still a bit panicked because the quiz contains sensitive information, such as how she is a virgin and is saving herself for Jake.
