FURVERT!

2016 abs anatomically_correct anatomically_correct_genitalia anatomically_correct_penis animal_genitalia animal_penis anthro balls biceps big_penis biped clayton_haniger equid equine equine_genitalia equine_penis erection fasttrack37d flexing front_view genitals grey_background greyscale hair half-length_portrait hi_res horse long_hair looking_at_viewer male mammal medial_ring monochrome muscular muscular_anthro muscular_male navel nipples nude obliques pecs penis portrait pose sheath simple_background smile snout solo standing triceps watermark