wincest : [S/S] As The Older Sister It's My Job To Teach Her The Stuff She Won't Learn In School.
[S/S] As the older sister it's my job to teach her the stuff she won't learn in school.
original: https://reddit.com/r/wincest/comments/4uhnso/ss_as_the_older_sister_its_my_job_to_teach_her/