Abstinence sex refers to the act of refraining from certain sexual activities while enjoying others. This term has a number of different meanings to different people, depending on what they've been taught or what they believe. For some, abstinence sex may mean abstaining from all types of penetrative sexual acts, including vaginal intercourse and anal sex, while outercourse, including oral sex and mutual masturbation, are considered fair game. Other people, on the other hand, believe that abstinence sex means abstaining only from vaginal intercourse.