2011all_foursanthrobedblack_and_whitedomestic_catduoerectionfelidfelinefelisfemalefemale_penetratedfrom_behind_positionfurnituregenitalsgraphite_(artwork)knotlooking_backmalemale/femalemale_penetratingmale_penetrating_femalemammalmonochromenudepenetrationpenisraised_tailsexsketchsperatailtraditional_media_(artwork)