SSPD-149 Lustful wife having an affair with her sworn younger brother

Misaki and her husband have been married for seven years, her husband is 20 years older than her. Even though she is 50 years old this year, her husband is still fascinated with Misaki's body. Even though she wanted to do so, because of her age, Misaki's husband quickly "surrendered" even though she had not yet reached orgasm. The two also promised to always be honest with each other no matter what, she kept that promise until one day... Hayato was her husband's neighbor when they were children. Because Misaki's husband is much older, the two always consider each other as siblings. Hayato often comes to eat at Misaki's house three times a week. However, Hayato's true intention was not simply to eat with his "brother". He has always had feelings for Misaki, but she never realized this. Once accidentally asked if Hayato had a girlfriend, Hayato mustered all the courage to confess to her. Misaki just thought Hayato was joking and wanted to get this over with. A few days later, when he went to get documents from Misaki, Hayato suddenly attacked her. Even though Misaki was resisting, Hayato still realized that she was enjoying this immensely. And just as he thought, this was the first time Misaki lied to her husband. If she told the truth, everything with Hayato would end, but somehow she couldn't do that herself. And so, she continuously let Hayato fuck her, even Misaki herself actively sought him out. Her husband was also suspicious, but because Misaki constantly lied, as well as because he trusted his wife too much, the "traitorous couple" just kept having an affair right behind his back...