Joplin's significant heterosexual relationships are documented above, e.g., with Peter de Blanc,[REF][REF][REF][REF][REF] Country Joe McDonald (who wrote the song "Janis" at Joplin's request),[REF] David (George) Niehaus,[REF][REF][REF][REF] and Seth Morgan (from 1970 until her death, at which time they were engaged[REF][REF]).
She also had multiple homosexual relationships.