Due to my parents' remarriage, I suddenly gained new sisters. Honestly, having female siblings out of the blue was quite a shock, but since I'm an adult now, I thought I'd maintain a harmless relationship for my parents' happiness. However, it turned out that those who acted like good girls in front of our parents were actually total bitches. As a result, I ended up getting backlash and negative evaluations. Pushed to my limit, I punished them with a vibrator laced with an instant-acting aphrodisiac, but they ended up begging for my dick while in the throes of ecstasy…
