The compositions with pin-up girls form a sub-category in the correspondence between Pablo Picasso and Jaume Sabartés. These small creations are an example of the humour that impregnated their friendship, not evading any type of joke, not even the dirty or sexual ones. They referred to them as “things to make you tremble and laugh,” and they did so increasingly in the 1950s, when both were already in their seventies.