Rule 34 Dev - 2016 animal_genitalia animal_penis anus ass black_scales claws dragon dreamworks duo erection feral genital_slit grass hi_res how_to_train_your_dragon human human_on_feral interspecies licking licking_lips looking_at_viewer lying male male_only mammal membranous_wings night_fury outside penis presenting rock scales scalie slit smile smirk solo_focus spread_anus spreading sprout tapering_penis tongue tongue_out toothless wings zoophilia|2332998240