El Ojete de Lulu (1986). AKA Lulu's Talking Ass. Spain produced, 1986. Directed by Jesus Franco. Featuring Lina Romay, Jose Llamas, Mabel Escano.
The movie introduce us a very interesting character: Lulu's talking ass, who is unhappy because his pal, Lulu's vagina is the only one getting all the action!