FURVERT!

2-8-4 animal_genitalia anthro big_penis black_body black_penis claws dragon exhaust exhaust_smoke fur furred_dragon furred_scalie genital_slit genitals horn how_to_dragon_your_train knot living_machine machine male manly muscular muscular_anthro muscular_male mythological_creature mythological_scalie mythology nicolasthewolf nipples non-mammal_nipples penis scalie smoke smoke_from_nose solo tail the_polar_express train vehicle vein veiny_knot