Hey. It was on literotica & it was abt this “loser” sister who likes her brother but he usually ignores her. He’s the all star & she’s a nobody so she has a bday party but it’s mostly his friends that attends & she gets his friend to give her drugs & she drugs her brother & fucks him
Source: reddit.com/r/eroticliterature/comments/owhrsn/looking_for_brother_sister_story