The ethics committee meets about Professor Dixon's sleeping with two of his students and whether he should be censured. His wife asks Sarah if she is sleeping with him and she denies it. After inviting Natalie to a dorm party, Owen is shocked when she shows up with another man on her arm. Rachel shocks Lee with her news.

Owen tries to impress Natalie on a date. Lee begins playing online poker and faces the consequences. Sarah decides to dump her new guy after she realizes that sex is not enough. Meanwhile, Richard, Professor Macklin and his wife Katrina all end up at the same concert.

Professor Macklin decides that abstinence will be the topic of the week. Owen and Natalie begin to rethink their relationship after she will not allow him to stay with her for a few days. This makes Natalie think about giving Richard a second chance. Lee, however, is having problems abstaining from gambling and sex and must take a loan from Richard to pay his gambling debt. Richard decides to hire Zoe to be the school newspaper’s new sex columnist, and Sarah almost gives her former professor/lover another chance, until she discovers that she's not the only student he has eyes for.