CHRV-010 - K-cup little sister's M-awakening, teaching a lesson to her explosive breasts peeking through a thin shirt

Walking with my little sister Ayu is a nightmare because of all the stares. It's summer, and she's wearing a thin shirt that barely contains her explosive K-cup breasts, drawing eyes from every man on the street. That wicked girl knows exactly what she's doing—she purposely locks arms with me, pressing her body against mine, and forces me to endure the humiliation of being the center of attention. She's playing a twisted game of shame, and I'm losing my mind.