Two couples with family ties came to a hot spring. Husbands who are somehow nervous. This is because it is a perverted trip where a swap play is planned in which the husbands have their wives fucked at night. The wives didn't know anything about it, but after learning the truth, they secretly had a desire to have sex with another man, so they had fun having sex! ! NTR hot spring where you can fuck each other's wives! ! Furthermore, even the waitress at the inn who has found out about this fact has sex with the customers! ! Abnormal hot spring trip of a cuckold pervert couple! ! Nakai with a beautiful wife who enjoys exchanging play day and night! !