2014 abs anatomically_correct anatomically_correct_penis animal_genitalia animal_penis anthro balls biceps biped bridle clothed clothing crop_top duo equine equine_penis erection feline female femdom hair hands_behind_back horse horseballs horsecock larger_anthro larger_male lion male mammal medial_ring midriff monochrome muscular muscular_male navel nude open_mouth pecs pen_(artwork) penis pink_and_white precum shirt shorts signature size_difference sketch smaller_anthro smaller_female snout standing straight traditional_media_(artwork) trogan