[Chinzurena] Shochupai p22-41 [EroGPx]

When his little sister brings her shy friend Mahiru home for a sleepover, a guy can't stop staring at the petite girl's impossibly huge bust straining her blouse—and when he catches her secretly peeing in the bathroom, the frightened puppy-eyed girl becomes his to blackmail. Punishment for her naughty habit quickly escalates into her first orgasm, her defloration, and relentless pounding that leaves her wetting herself and begging him to pull out even as sweet moans spill out with every thrust against her womb. By the next morning, with the sister none the wiser after sleeping like a log, Mahiru is the one asking to stay another night—and he's all too eager to indulge those massive breasts with a dozen more creampies.