Talk:Demon Lord's husband/@comment-100.40.123.126-20150225212216/@comment-25035274-20150225220327

Actually, I don't think it is, really. I mean, if monsters from the previous world order couldn't bear male children, all the assorted monster races would have gone extinct thousands of years ago.

I think it's more likely that whatever changes the DL made when she first started tampering had the unintended consequence of keeping monsters from being able to bear sons. It's probably tied to that whole "monsters are female, humans/incubi are male" thing.