Adult PC Game: Juicy Imouto☆Hentai Pakorikkusu -Mezase! Motekawa H na Onna no Ko- by Ammolite Archive

"I want to be a little demoness!"
Little Sister Ohana declared, coming into my room at midnight.
She brought a magazine, and there was a bad article.
"It's popular with girls these days to dress up as a little demoness!"
"Doing lots of obscene things and making Toriko a prince like you've never seen before."
Apparently this article is aimed at learning the basics of sex.
Nevertheless, silly Ohana understood only a small part of it.
"It can't be helped... I'll do some special training for the sexy stuff."
"Really?"
"Sure."
"Then let's start training with big brother."
Becoming suddenly elated, I grinned maliciously.
According to the deal, let me teach you anything I want...!