Talk:Cursed Sword/@comment-19106799-20160414103152/@comment-10429980-20160417042134

One other thing that makes harems rarer than they might be otherwise is mentioned in the main incubus article. Namely that the lust of an incubus is naturally directed at his wife, which makes him disinclined to go after other monsters. Its not as strong as the effects that keep monsters from going after other men, but it is there.

Hence harems normally occur only for men married to bicorns, men married to monsters that culturally expect the man to have multiple wives (large mice for instance), or the rare cases where a monster falls in love with a man and recognizes him as her husband without any seduction or sex occuring first (this still causes her body to adapt to him and him alone, meaning the current wife has little choice but to accept her as otherwise the monster can't get a man at all).