The Autobiography of a Flea (1976)

Rough and dark sexploitation tragic comedy set in the 1800's which follows a jovial male flea that narrates the life of Belle, an innocent and naive 14-year-old girl who lives with her evil uncle, Pierre and oblivious aunt, and whose pubic hair is the flea's home. Wicked Father Ambrose catches her and Charlie, her inexperienced boyfriend trying to clumsily have sex for the first time one day and uses this to blackmail and manipulate her into becoming his sex slave. His two equally wicked priest friends force him to share her with them. However, Ambrose doesn't stop there as his mission becomes to completely corrupt her and turns her into a willing sex toy for any man who craves her flesh. This includes her sinister uncle, the weirdly queer father and son duo of crazy and violent rapist peasants, her best friend Julie's father Mr. Delmont, and Ambrose's two aforementioned priest friends who begin stalking her at night and abusing her aunt as well. As it turns out, the more sex she is forced to have, the more she likes, which makes her abusers very happy. Meanwhile, Julie also becomes corrupted by both Ambrose and Belle herself, which results in an unfortunate incestuous tryst. Belle and Julie eventually become completely debauched, accepting completely their roles as pure sex objects, and the ending only promises more abuse in their future, although they seemingly enjoy it now.