How about adding a Brienne futa? So the double pregnancy with her would no longer be a unique event! And maybe we could revisit the legendary Herm/Futa Helix!
While I would love myself some futa Brienne. I think Wsan was going with a duality thing with the Dominant big cock male Brint and the Submissive Big Tittied female Brienne. While the idea of giving her a cock and turning Brienne into some sort of Switch would be interesting Wsan may find it too much work or might find just sticking a cock on Brienne not what her character is about (to be honest tho, that dream scene with Demon Brienne is fucking hot both ways and I wish the Dialogue with Kassyra afterward was effected if you were going down the romance route with her. It's weird hearing my character insult Kassyra knowing nothing of love when I am trying to romance her.)