Every couple has a different way of loving and a different set of kinks. This home-video documentary reveals the everyday lives and private sex these adult women share only with their boyfriends. RIN, 20, is a shy, wholesome adult student role-play performer whose sensitivity soon overwhelms her reserve. NAKO, 20, is a cool office temp with a surprisingly aggressive sex drive and a habit of screaming during sex. MARI, 20, is an adult student role-play performer with an irresistible body and I-cup breasts. NAMI, 24, is a tall, model-like shop clerk who drinks, fucks, and cuts loose. Together they expose the uninhibited private sex they normally show only to their partners.