Rule 34 Dev - 2010s 2018 2d 2d_(artwork) ? animal_genitalia animal_penis anthro anthro_focus artist_name ausjamcian balls big_penis biped black_fur black_penis blush book canid canine canine_penis canis changed_(video_game) colin_(changed) digital_media_(artwork) fur goo_creature grabbing_own_penis holding_book holding_object human implied_yaoi knot lin_(changed) male male_only male_symbol mammal mars_symbol mask masturbation monster nude paws penis precum puro_(changed) reading reading_book rubber simple_background sitting solo_focus symbol third-party_source video_game_character video_games white_background wolf|1032755