Saran is married to her husband and lives with her father-in-law. - Although sex with her husband was light, Saran was satisfied with it, but as each month and year passed, the number of days and frequency of sex decreased. - After all, Saran's sexual desire was so great that her husband's physical strength reached its limit and he started making noises. - Saran had no choice but to cheat by masturbating during her alone time. - Her father-in-law was enjoying their married life, observing Sara and keeping a diary. - At some point, Saran's clothes changed. - High exposure and no bra? - No panties? - He was dressed in a way that could be mistaken for someone else. - At first I thought it was part of her activities with her son, but when she looked back at her diary, she realized that she had been acting like that ever since her activities with her son stopped. - One day, my husband went to work and my father-in-law went out on some errands, and when I was enjoying some solo masturbation time, my father-in-law came back after being absent from his errands. - Her father-in-law stares at Sara, who is absorbed in masturbation, with a surprised expression, but becomes aroused by the sight of Sara moaning painfully, and ends up putting Sara in a handbag. - Her father-in-law's seasoned caress is amazing, and she is made to cum over and over again by his cunnilingus, which is especially naughty. - Her father-in-law's dick was bigger and harder than her husband's, and Sara reached her climax the moment he penetrated her. - A few days later, her family left and Sara, alone, unsteadily took out her father-in-law's underwear from the laundry basket and sniffed it. - As she ran her fingers along her crotch, remembering what she had done with her stepfather, Sara's underwear became obscenely damp.