To completely immerse my girlfriend's younger sister (simple, shy, and uninterested in sex) in chemical sex, turning her into a sex toy with constant orgasms. Kitaoka Karin WAAA-621

At my girlfriend's house, I met her shy, shut-in younger sister, Karin-chan. I lured her, who had no interest in sex, into a world of chemical sex, turning her into a sex slave! Her slender, undeveloped body gradually transformed into a lewd, lustful monster capable of multiple orgasms in an instant! Chemical sex where she was tricked into believing it was birth control pills; begging for oral sex with a penis laced with aphrodisiacs; lewd sex with a strangulation orgasm; lewd, drug-fueled sleepwalking sex next to her older sister (girlfriend). The ultimate masochistic sex slave, who orgasms at the slightest provocation!