Ненасытный / Gendai poruno-den: Sentensei inpu (1971)

Reiko Ike stars as Yuki, a girl who has lesbians sex with Miki Sugimoto at a Catholic school during the opening credits. She is then raped by her mother’s sleazy boyfriend, quits school, leaves home and burns through a number of sugar daddies before eventually meeting a nice guy architecture student. Will their love be strong enough to defeat (or accept) her fuckmad body?