sentences:  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".According to Urlaub, he wrote the song at age 15, in 1979.