My stepsister appears to be a gentle and serious girl. But in reality, she feigns defenselessness and teases me by flashing her tits! She doesn't know if it's unconscious or deliberate, but she enjoys testing my resolve right at the edge. Finally, my lust reached its limit from my stepsister's erotic provocation! Before I knew it, I was grabbing her tits from behind and kneading them! Then, my stepsister seemed to want it too, as she actively sought out my dick, awakening into a complete slut! This isn't going to end with just a simple brother-sister relationship!
