What will happen when two college couples on a hot spring trip, a big-dick guy and a big-assed girl, are seated together in an open-air bath?! Although they are embarrassed and confused by their first experience, the young men and women who meet for the first time gradually become fired up during the radical big-ass body-washing mission! With their big dicks and big asses pressed together, they forget about their boyfriends and girlfriends and follow their instincts with intense double cheating sex, cumming inside them repeatedly! Enjoy the whole story from "Nice to meet you" to a naughty butt-to-butt encounter with just a towel!