The husband was assigned overseas, leaving the mother-in-law Satomi and college student Yuichi to live together at home. One day, Satomi witnessed her sleeping son's erect penis. Unable to resist her son's hard erection after being separated from her husband for so long, she finally crossed the line. She took in his throbbing penis and greedily sucked on it. In the house without her husband, their illicit lustful life together couldn't be stopped.
