Shiiba-san no Ura no Kao. with Imouto Lip

Shiiba-san no Ura no Kao. He's always been the quiet kid at school. Never trying to make a fuss, he's barely noticed at all. So why is the prettiest girl in school throwing herself at him... what could the reason be? Imouto Lip After returning home he found his younger sister watching porn inside his room, now she wants to try it...