Rule 34 Dev - animal_genitalia animal_penis balls close-up equine_genitalia equine_penis erection feral genitals hybrid_genitalia hybrid_penis knot knotted_equine_penis knotted_penis lying male mane on_back penis perspective quadruped side_view solo standing text petrock hasbro my_little_pony felid fish mammal marine 1:1 digital_drawing_(artwork) digital_media_(artwork) english_text hi_res monochrome multiple_images sketch|6802574660