Summary
Saya has a habit of having naughty fantasies with her older brother. I love my older brother who is brother and sister but not related by blood, and finally my wish came true and I changed from “younger sister” to “girlfriend”. The two of them are still excited just by kissing. One day, my brother’s friend Ray came to visit us. Saya is surprised and thrilled by Rei’s extreme physical contact. “Punishment… I have to…” As soon as Rei returned home, he was trapped in a dungeon, and his arms were restrained. My brother is acting strange…?? The long-awaited sequel to “I’m a big brother but I want to have sex”!!
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