Once and For All (1977)

"Once and For All" (1977) follows the story of Sue, a virgin who harbors a fear of sexual intimacy. Her teacher, Miss Evans, who has a particular interest in virgins, intervenes, leading to Sue's transformation into a highly sexual individual. Concurrently, Bill is persuaded by his friend Stinger to engage in non-consensual acts with his girlfriend, Betty. The film features various sexual encounters, including oral sex, vaginal intercourse in multiple positions, and additional elements such as lesbian scenes and anal sex, culminating in a multi-partner scene. The movie includes performances by actors such as Ultramax, Todd Davis, Cedar Houston, Jean Dalton, Alan Marlow, and David Dell, divided into several scenes.