ZMEN-059 Hallucinations! Delusion? My sister, who I hadn't regarded as a female until now, suddenly had cat ears ... I like 2D, and I got a painful erection because I was too crazy!

Description

One day my sister suddenly got cat ears. Is this a hallucination due to studying too much for the exam? Or did the delusion and reality get mixed up due to lack of masturbation? Anyway, my younger sister, who would never be the subject of sex, looks irresistibly cute ...