I can't move and get slutty by a beautiful lady

[You're calling in the whole story! Experience Yamagishi Aika's slut torture with a realistic binaural recording! ]I am a student who has been pretending to be my girlfriend for only two days with Aika-senpai, a working adult. "You shouldn't put your hands on me, but I'm OK...♪" Senpai is at the mercy of sex with her crazy theory! There have been many erotic incidents, such as witnessing her senior's masturbation and being peered into her by her younger sister! Even after he returned home, his senior's sexual fetishes escalate...