Talk:Girtablilu/@comment-206.167.197.2-20181119151057/@comment-10429980-20181120032611

@Timjer, Actually there are plenty of references to snuggling, sexy times without outright sex, etc. A major one being how needy monsters can get for non-sexual comfort during pregnancy.

As for the first post's question, there are several answers. Foremost is that its a hentai setting and its primary point is to detail a fantasy world where one can fall in love with, marry and have rather unworried lives with sexy monster girls.

An in-universe reason though would be that the Mamono Lord is a succubus and succubi thus now to an extent define all monsters. All monsters are in a sense part succubus, and its only thanks to the changes the Mamono Lord was able to make to how mamono mana works (changes that are helped by sex) that the monster girl era is possible at all. Without all that sex-fueled magic, the monsters could revert back to the god-enslaved human killers they were before.

Another in-universe reason is that on a basic level men's mana is the favorite food of all monsters. Sex is the best way to get a large amount of this mana, and thus all monsters crave sex with human men to one degree or another. They also instinctually regard human men as males of their own species, and thus naturally seek to find love and reproduce with them.