They were also briefly lovers. Kochno wrote the libretto of Stravinsky's Mavra (1921), George Auric's Les Fâcheux (1924), Henri Sauguet's La Chatte (1927),  and of Sergei Prokofiev's ballet score The Prodigal Son (1929).
They had a brief romantic relationship. Kochno wrote the libretto for Stravinsky's Mavra (1921), George Auric's Les Fâcheux (1924), Henri Sauguet's La Chatte (1927), and of Sergei Prokofiev's ballet score The Prodigal Son (1929).