abs animal_genitalia animal_penis anthro balls biceps big_balls big_knot big_penis black_nipples bodily_fluids canine_genitalia canine_penis dripping erection evening fangs forest genital_fluids genitals heavy_balls huge_knot huge_penis knot male masturbation muscular muscular_anthro muscular_male nipples outside pecs penis plant precum precum_string realistic saggy_balls saliva saliva_drip snarling solo thick_penis tree vein veiny_biceps veiny_knot veiny_muscles veiny_penis wolfgrinn canid canine canis mammal were werecanid werecanine werewolf wolf