PZ Myers looks at a quote and a common religious argument about marital duties.
Apparently you have to have sex, if you are married. You just do. It's a chore and job you are obliged to engage in. I can't help, but wonder if the guy feels the same way when he's not in the mood. Or is it completely different.
It is all charming. First, I can guess he fails to engage his partner to woo them, to entice them, to build interest in him. Sad. And if someone doesn't want to do it and says no...What then? I would like to hear about that.
Ironically there are often uses of this logic brought into law. It is strange.