There was a conflict with her husband, so Ai left angrily and had to stay at her lover's sister's house for a few days. Here, an ironic case happened when her younger sister accidentally lent her sister the exact same outfit as hers. While her body was full of sexual energy, as soon as she opened the door, her eyes were met with a very sexy position showing off her lover's butt, unable to stand the boyfriend who quickly inserted his penis. Once inside, he realized that this was his sister, not his lover, and it couldn't be helped because their clothes were so similar. But things didn't stop there, he continued to make a mistake again while his sister had just finished bathing, this time it seemed to have awakened her sexual instincts. That night, she took the initiative to find him and forced him to satisfy her once more, from then on, a series of secret dates between the two of them began.