While her husband was on a single assignment, Sei lived with her daughter and son-in-law to save money for their home. Happy days passed quickly, but as she aged, her sex drive increased... One day, Sei found out that her son-in-law Kenichi was peeping at her masturbating. Aroused by his impressively large cock, Sei constantly tried to seduce him. Kenichi, who was in a sexless marriage with his wife, couldn't resist Sei's allure and repeatedly ejaculated inside his mother-in-law with his massive dick. Soon, Sei also became unable to live without his huge cock...
