Today Ai's husband had to go on a business trip, while on the way his superior called to inform that the business trip was cancelled and he was granted three days off. He thought today was really lucky, just arrived home and found an unfamiliar pair of sandals at home, heard his wife laughing and joking with another man. The husband quickly hid everything and crawled under the bed. The laughter got closer and the scene he feared the most happened. His wife was embracing another man! Not only that, he also saw his wife's seductive face, so different from her usual gentle self. And then he had to hide under the bed, watching his wife have sex with another man, even letting the lover have sex openly, something he had never experienced before. Although he didn't want to witness this, he seemed to feel very excited inside, his cock getting hard when seeing the wild image of his wife. And for three days, he secretly watched his wife have sex with someone else from morning till night, they were more intimate with each other than with him...