My step-sister Hinako Mori was introduced to me ten years ago through my parents' remarriage. She's always been a bit of a weirdo; she's introverted, an otaku, and wears those dorky glasses! But when I went back home after so long, she was still the same old thing... until I noticed something different about her. There she was, innocently showing off her bare chest under her glasses while touching herself! I just couldn't resist any longer and attacked her. We ended up having wild sex all over the house, even in places like the bathroom or kitchen! It turns out that Hinako is actually really cute and incredibly nymphomaniacal - she made the perfect step-sister! Note: The contents may vary depending on the distribution method used.
