After repeatedly sexually harassing her extremely introverted stepsister, she became hypersensitive and prone to premature ejaculation! 2 She turned into a perverted woman… HUNTC-011

The extremely introverted stepsister would never tell their parents, so she secretly played with her nipples for days on end. Unexpectedly, she recently developed a hypersensitive, premature ejaculation condition; even a light touch on her nipples would cause her to drool and experience multiple orgasms. This is bad. Have they gone too far? This stepsister, who has suddenly transformed into an S-class pervert, now wants a penis in order to achieve even greater pleasure. Although this is a consequence she herself has gotten herself involved in, it's truly unexpected that she's become so lewd.