I’m happy to report that I have identified ‘vulvic face, phallic head‘, the informal title to three (actually two unique ones, 2 and 3 are the same image) [1] [2][3] grotesque shunga of an amorous couple; her head is a vulva, his head is a phallus, her vulva is a face, his phallus is a face.
These images are featured in Shunshoku hatsune no ume(1842), written by Tamenaga Shunsui and illustrated by Utagawa Kunisada.
I’ve previously written about these prints here.
They are part of the Metamorphic Genitalia and Fantastical Sexual Images project, in the category “Substitution, displacement or replacement”.