@Nimue: Based on your question I rewrote the part where Maud explains their sex-swap to Jurgis. Is this more acceptable? Later in the book, after Wemawee managed to teleport herself away, her lover Wargall joins Maud and the others. He wants to clear the name of his clan, and prove himself as a warrior male. The queen, though doubtful, gives him permission. At first, Wargall is very unsure and emotional. Then he goes through a short stretch of puberty and slowly grows into a man. Jurgis aids and stimulates him, saying that while Wargall seems weak compared to the Kell women, he is a stout fellow compared to males of the other peoples. Jurgis wants to prove that Kell males by exercise can regain their strength. I googled this all, to see if it at least sounds biologically plausible and it seems it does... Anyhow, Wargall soon outfights Jurgis. Finally, when he and Wemawee meet again, they team up again, but this time as equals like Maud and Jurgis.