Talk:Walkthrough/@comment-75.132.52.107-20170921035151/@comment-32166397-20171019000956

It's implied that the more women Simon sleeps with passively increases his Incubus King powers and probably allows him to refine his skills using the power. It's probably a similar stiuation with the Withered Mountain slaves to when he absorbs the corrupted item in Zirantia, it doesn't give him a large boost because he already has a good amount of power. It's not represented mechanically in-game as far as I can tell.