I'm reading the Dune audiobook (I'm re-reading the book after years). The only reason I noticed mentioned for why Jessica has a son is because Leto wanted one.
I find this very unconvincing. I mean she seems like a very serious Bene Gesserit in every other regard. But she basically ruined a plan thousands of years in the making because Leto wanted a son? I mean... I can understand if she was cutting off from the Bene Gesserit, or she didn't believe in the ultimate plan of Bene Gesserit.
Not only that, the Bene Gesserit seem to take it really well... apart from some scolding, Jessica seems to get away with her actions scot-free. I'd think there'd be some kind of punishment for Jessica... how could they even pull off their breeding if it's so easy to break Bene Gesserit rules?
Is there some deeper reason given for Jessica's actions, or reason the Bene Gesserit seem to take it so lightly? (I mean lightly in proportion to the staggering nature of the crime).