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against_natural_surface against_surface against_tree animal_genitalia anthro balls bear belly big_penis brown_bear claws erection exhibitionism fur genitals grass grizzly_bear hair hi_res kuruk_(character)looking_at_viewer male mammal mane mane_hair muscular muscular_anthro muscular_male nude penis plant sephrendemon sheath slightly_chubby slightly_chubby_anthro slightly_chubby_male solo tree ursine