NACR-051 Perverted Family Sex Education Shihori Endou Mari Koizumi

Mari is a high school girl in the midst of adolescence. Mari's parents are a mandarin duck couple who are popular in the neighborhood. They are engaged in an intense nightly married life almost every night. Not only sex, but also blowjobs, fingering, and toying with toys...all of those obscene sounds and voices can be heard by the girl in the next room across the wall. At an age when Mari is curious about sex, she wonders what is happening next to her.