FURVERT!

abs animal_genitalia animal_penis anthro balls big_balls big_penis biped brown_body brown_fur brown_hair equid equine equine_genitalia equine_penis fur genitals hair half-erect hands_on_hips hi_res horse long_hair looking_at_viewer male mammal medial_ring muscular muscular_anthro muscular_male navel nipples nude penis smile solo standing tridark vein