Talk:Incubus/@comment-45424649-20200802121304

A man's lifespan will be increased to match his wife's lifespan, but does the wife gain a longer lifespan with the power growth she get's from her husband? Seeing as some mamono have lifespans the same or slightly longer than humans, would they have to be more fertile to make up for a shorter lifespan?

Taken from the Treasure child Tree: ''By nature, it is extremely difficult for monster human couples to have children compared with human couples. Some monsters have lifespans that last centuries, or even millennia, and if they're unlucky, they won't be able to have children even after years, decades, or even centuries of having sex a two-digit number of times every day.''