Rule 34 Dev - animal_genitalia animal_penis anthro ass backsack balls big_balls blush comic dialogue embarrassed english_text equine equine_penis erection fur growth hi_res hooves horsecock james leaking looking_at_viewer looking_back male male_only mammal muscle_growth muscular nude open_mouth penis penis_growth perineum precum sac solo teeth text tigerxtreme transformation were-horse werehorse|2234620712