This summer vacation, nephew Katsu visited his aunt's house for the first time in a while. Since his uncle was out of town on business, he ended up spending time alone with his kind aunt, whom he had admired from afar since childhood. However, his aunt seemed to still think of him as a child and, without regard for his gaze, started sprinkling water in the garden in her thin clothing… Katsu couldn't help but stare at her see-through, bra-less breasts soaked by the splashing water. The large areolas were too stimulating for a teenage boy, causing him to get an erection. Seeing this, his aunt suddenly took his erect penis into her mouth and gently admonished him, 'Keep it a secret from your mother.'
