i'm making my little sister perform oral sex in secret from my parents and conveying my feelings in a diary. i've been teaching my obedient little sister that it's a natural thing for siblings to do since she was little, and she still believes it. my little sister's oral sex skills are improving every day! recently, my little sister, who has become even more erotic, is escalating and performing oral sex in my parents' blind spot! it's really dangerous! but the thrill of not being caught by my parents nearby makes my excitement reach its peak! in the end, we crossed the line and we, who can't stop, fell into the swamp of incest... for my little sister, it's a natural act that anyone would do if they were siblings, so she doesn't question it at all. but i, who know the truth, honestly feel a little guilty.
