Rule 34 Dev - animal_genitalia animal_humanoid animal_penis ball_growth balls big_balls canid canid_humanoid canine canine_humanoid canine_penis dog_humanoid erection eyewear glasses greyscale growth hi_res huge_balls humanoid hyper hyper_balls hyper_penis knot male male_only mammal mammal_humanoid monochrome penis penis_growth sheath solo spiritraptor standing|3705385272