During a school trip, a male high school student met a married woman who was on a hot spring trip at a mixed bath hot spring! Initially tense, the married woman's guard gradually relaxed, revealing her mature female body! The young male student's penis, unlike his classmates, was fully erect due to the adult allure! And seeing this, the married woman also became aroused, feeling a sense of guilt for causing an erection! Knowing it was wrong, yet losing rationality to the numerous youthful, erect penises, she reached out and clung to one herself!