My girlfriend is a 'nudist,' and she's always naked at home. During the summer cram school session, her younger sister Haruka will stay for two weeks. Before we even finished greeting each other, Haruka started getting naked, making my heart race and me extremely anxious! Even when I'm told, 'Of course it's natural since we're family,' my gaze still drifts to her G-cup breasts and crotch. 'Hey? You're hard! Let me take care of that for you quietly'—and then she blows me right next to my girlfriend! Haruka boldly teases me even when my girlfriend is in the bath or asleep... And I, the piece of trash, get hard again.
