I'm looking for an erotic thriller that is quite old. It's about a man who starts an affair with this beautiful blond woman. If I remember correctly their affair starts in a hotel room or some sort during a blackout or thunder storm. After a while he visits her at her home and a conversation starts in which he apologizes for what happend and promises that it will never happen again. She answers: "Oh yes it will" and then they have sex again in bed at her home.
Thanks in advance