Answer: frottage

AnswerCrossword Clue
FROTTAGEArtistic tracing
frottagetechnique in the visual arts of obtaining textural effects or images by rubbing lead, chalk, charcoal, etc., over paper laid on a granular or relieflike surface
frottagework of art containing shapes and textures produced by frottage
frottagethe practice of getting sexual stimulation and satisfaction by rubbing against something, esp. another person
frottagemasturbation by rubbing against another person