vanilla sex : sex that involves no twists or kinkiness, and no S&M. plain regular sex. typically sweet and happy and very lovey-dovey. kinky sex : the period of time that arouses "creativity" or "imagination" during masturbation or sexual intercourse where one or more voluntary and freely willing person(s)"role play", or get really "buck wild"(while sometimes involving sex toys), with themselves or with their sexual partner(s).