I Love It From Behind! (1981)

Plot

Mimei, a determined young woman, is on a quirky quest to collect 100 “penis prints” before her impending arranged marriage. Since high school, she has pursued this unusual art project, enlisting the help of her lesbian friends, Masumi and Rei, to navigate the dating scene across Japan. As Mimei finally encounters her last potential muse, she faces an unexpected challenge: to capture his print, she must first bring him to ultimate ecstasy. What seems like a simple task proves to be a hilariously complicated endeavor, pushing her limits in the process.