Rule 34 Dev - animal_genitalia balls bdsm beak bondage bound cart cart_pull erection feathered_wings feathers forced forced_labor forced_to_pull gag gagged genitals harness hooves male outside penis petplay ponyplay public roleplay slave solo wings faeseiren european_mythology greek_mythology mythology snowypenguin avian hippogriff mythological_avian mythological_creature 2015|3514968205