A drive date heading to a mountain hot spring. The trip with her younger boyfriend is dripping with erotic tension. With a remote-controlled vibrator already inserted, she walks around chirpily, yet her moans grow louder and louder—so intense they cut through the sound of the nearby river. Fully aware of being seen by others, she can't stop the rising excitement. Telling him she's already wet, she continues masturbating with the vibrator, soaked and blushing with shame. Taking that first step into becoming a true pervert, their sex in the outdoor bath begins with deep, passionate kissing. Unable to hold back any longer, they finish right there with bareback creampie.