It was supposed to be a two-day, one-night trip to visit regional art museums with her mother. However, due to an urgent matter at the last minute, her mother could no longer go, so Sonoka consulted her kind and dependable uncle. Being a good-natured man, the uncle happily agreed, and the two set off on their journey without incident. That night, after a fun day of visiting museums, they discovered that due to her mother's mistake, only one hotel room had been booked... Alone in the room with her uncle, Sonoka felt safe, thinking it was fine because he was family. Meanwhile, seeing Sonoka in light clothing after her bath, the uncle began to see her as a woman... The desires hidden deep within him were laid bare. His cock was fully erect, yet a sliver of reason still remained. "I'm sorry... I'm so sorry for doing this..." he apologized, even as he defiled her. Time and again, he came inside her. Sonoka fell deeper, accepting both her uncle's apologies and his cum. Breeding pistons. Hard pounding ejaculation.