Ton of effort?????? The assistant girl literally let you kiss her after just a couple of words spoken to each other!!!!!
I do not want to argue with you, but yes, there are some realistic adult VNs. I will not say exactly the title, but there is a game, where you even play as female protag, so you basically could be whore from the start but no, the story rather play it more slowly, letting you corrupted by other rotten female friends to do nasty things. Maybe the problem is the most of the developers are guy, who knows nothing about females. (never ever had a girlfriend, I suppose) The game which I spoken about, has a female developer, and oh boy, what a difference!
But I get my answer from a review (fellow name Kayze12):
" Most of the characters are not that interesting. There is absolutely no tease and Zero effort from the MC in acquiring the girls..and its just cheap sex . The game just throws girls in your face like " here, have it...on the house".