I recommend fucking.

Tristan: Samuel, God bless you. You are good at everything you try to do. I'm sure it'll be the same with fucking.
Samuel: Tristan, really. We're talking about my future wife.
Tristan: Oh, you're not gonna fuck her?
Samuel: No!
Tristan: No?
Samuel: No! I'm planning to be with her.
Tristan: I recommend fucking.

Legends of the Fall (1994) by Edward Zwick