This is one of the Couple series that Louise Bourgeois did in the last year of her life in which the drawings are made separately but then joined together as one. See more variations of these drawings here: https://www.pinterest.com/pin/41799102766548659/. Tracey Emin did a very British variation on the theme of these drawings also worth a look here: http://www.hauserwirth.com/exhibitions/814/louise-bourgeois-tracey-emin-do-not-abandon-me/list-of-works/2/. While I appreciate both artists I much prefer the original joyful ambiguity and non narrative focus of Bourgeois drawings.