This documentary contains five videos of 29 Amateur married couples and couples having sex in hot springs (4 videos) and a small hot spring hotel (1 video) all over Japan! This is a parade of extremely obscene erotic videos of middle-aged wives who know the secrets of sex being devoured by complete strangers at a swapping party in front of their husbands, and climaxing over and over again. How to get interested in swapping This work can also be used as a TO.