"Stay As You Are" deals with a man who is attracted to a young girl, who finds out that she is the daughter of a prior lover (now dead), and that he might be her father (we never find out either way). When Francesca finds out she might be her daughter, it doesn't phase her. The man who has raised her, she looks in a father-daughter way. Giulio, she looks as a lover. The fact that he might be her father has no bearing on her.
Likewise, although Giulio has sex with Francesca, knowing that she might be his daughter, around the the girl he has raised, he respects the incest taboo. In no way is he sexually interested in his own daughter. Francesca just walks into his life, then he learns that he might be her father.
"Time" magazine said all love stories have something keeping the lovers apart. Parents, class, money, etc. In this case, I don't think it was the incest taboo. Just that Francesca cannot see herself living with Giulio. I think he she had seen them as living together forever, she would have worked on it, taboo or no taboo.
Likewise, although Giulio has sex with Francesca, knowing that she might be his daughter, around the the girl he has raised, he respects the incest taboo. In no way is he sexually interested in his own daughter. Francesca just walks into his life, then he learns that he might be her father.
"Time" magazine said all love stories have something keeping the lovers apart. Parents, class, money, etc. In this case, I don't think it was the incest taboo. Just that Francesca cannot see herself living with Giulio. I think he she had seen them as living together forever, she would have worked on it, taboo or no taboo.