It deals with incest and was added to the German List of Media Harmful to Young People in 1987 and is still in the index.
The song follows an incident between a boy and his 14-year-old sister, where they are left alone by the parents and then engage in intercourse; it is also implied that this will be repeated from another position.
Farin Urlaub, who wrote this song, thanks his younger half-sister ironically in the booklet of the album, "for her super sibling love".
Several versions of the song have been released: It was once played live as an instrumental, but the crowd sang the lyrics (not directly encouraged by Die Ärzte).
The bonus single version is titled "Der Ritt auf dem Schmetterling (Instrumental)" ("The ride on the butterfly").