Dune
Lady Jessica: [Jessica and Leto are lying in bed together the night before the family's journey to Arrakis] I once told you a daughter would be conceived at a time of parting.
Duke Leto Atreides: I remember. Conceived in love, at a time of parting. Arrakis is a hostile world.
Lady Jessica: I must be sure you want this. It has to be
tonight, under these influences. I could hear you with the wind.
Duke Leto Atreides: And I whispered 'Yes'.
Lady Jessica: And I whispered 'I love you'.