FURVERT!

2014 all_fours anus axelferdinan biped biped_to_quadruped black_and_white butt canid canine female feral feral_transformation flat_chested fox fur genitals heart_symbol human_to_feral line_art mammal monochrome nude presenting presenting_hindquarters quadruped semi-anthro shrinking sitting size_transformation smile snout solo species_transformation speech_bubble traditional_media_(artwork)transformation unavailable_at_source vulva