Rule 34 Dev - animal_genitalia animal_penis anthro anthro_on_anthro anus backsack ball_size_difference balls bed bedroom big_penis black_balls black_hair black_nose brown_body brown_fur butt countershading detailed_background duo embrace equine_genitalia equine_penis erection eyebrows fur furniture genitals green_eyes hair hug imminent_anal imminent_sex inside interspecies lamp looking_at_viewer looking_back lying male male/male medial_ring multicolored_body multicolored_fur muscular muscular_male narrowed_eyes nude nude_male on_bed on_front open_mouth orange_body orange_fur penis perineum pillow pink_penis presenting presenting_hindquarters raised_tail rear_view seductive size_difference smile spread_legs spreading vein veiny_balls veiny_penis white_body white_fur bela987 canid canine equid equine fox horse mammal hi_res|78705136