anthro apode bodily_fluids cock_transformation draconcopode drooling_cum genital_fluids genitals gulonine hair legless living_penis looking_at_another looking_pleasured male male/male mammal marten mouse murid murine muscular muscular_male mustelid musteline naga penetration penis pesimist peyton_(forth) precum prescott reptile rodent scalie serpentine sex sketch snake story story_at_source story_in_description tail_fetish tail_play tail_sex transformation urethral urethral_penetration vein veiny_penis