It all started when Yuna's mother-in-law passed away at the end of last year. Seeing her father-in-law all alone, Yuna's husband invited him to live with the couple. However, since his wife's death, the father-in-law became quiet, reserved, and even skipped meals, causing Yuna's husband to worry. Today, Yuna's husband had to go on a business trip, leaving Yuna and her father-in-law at home. Her husband was always busy with work, so Yuna had not been intimate for a long time. She could only masturbate to satisfy her own sexual desires. The father-in-law accidentally caught her and took the opportunity to have sex with her, promising to only do it for ten seconds. And true to his word, he pulled out after ten seconds and returned to his room, leaving Yuna feeling disappointed. The next day, Yuna had to stay out all morning because she couldn't face her father-in-law. When she returned, she found that he had eaten all the food she had prepared, and he seemed much happier than before. The father-in-law knew that his daughter-in-law was craving for sex, but she had not yet overcome her psychological barrier. Therefore, he decided to take the initiative to help her. He approached her, passionately kissed and licked all over her body, and inserted his penis into her mouth and vagina. And that final psychological barrier was finally lifted. During the time her husband was away on a business trip, Yuna became more proactive and immersed herself in sexual activities with her father-in-law. Some time later, Yuna became pregnant, and her husband was overjoyed and happy. But she knew that the child in her womb was not her husband's...