I once tried to mod in dragons to Crusader Kings 2. But most of the females ended up as concubines to pagan lords, and most of the males went around siring half-human bastards everywhere.

So it was no different from vanilla CK2.

...
...what were we talking about? Dragons? Yeah, I like them, but I don't like the western 'dumb fire-breathing lizards' stereotype.

Even as a kid, that bored me. I preferred fiction that portrayed dragons (and monsters in general) as wise and benevolent. Such as the dragons in Dragonflight (by Thalion), or the metallic dragons in various D&D settings. Those are the first portrayals of dragons that I remember liking.