FURVERT!

agropuer anthro apode cobra cock_transformation draconcopode dragon duo european_mythology genitals legless living_penis male male/male merging mythological_creature mythological_scalie mythology naga penis penis_creature penis_snake pit_viper rattlesnake reptile richardrodney scalie sentient_penis serpentine snake tail transformation unusual_anatomy unusual_genitalia unusual_penis viper western_dragon wings