Due to work circumstances, Yuichi, the nephew of Ayumi, is staying at her place. Ayumi has started to feel attracted to him and frequently presses her voluptuous body against him in attempts to seduce him... Although Yuichi tries to maintain his composure, one day Ayumi grabs his crotch and asks, 'Are you feeling relieved over here?' Before he knows it, she sucks his erect penis and he helplessly reaches climax. Some time later, when Yuichi confides in Ayumi about his work troubles, she takes him into the bathroom to cheer him up...
