All Ladies Do It (1992)

Diana is a Roman wife happily married to sympathetic Paolo but she is keen on playing benign games of seduction with other men while resisting the advances of chic lingerie shop owner Silvio. She narrates her adventures to Paolo in order to stimulate their otherwise monotonous sexual life. However, under the influence of her lesbian friend Antonietta and raunchy sister Nadia, Diana starts to move the ongoings further while Paolo is still prone to believing that events narrated by her are merely fantasies.