FURVERT!

2012 accipitrid accipitriform anal anal_masturbation anal_penetration animal_genitalia anus avian balls bird canid canine canis digital_media_(artwork)digitigrade dildo feral fully_sheathed fur genitals grey_body grey_fur internal kintari lying male mammal masturbation monochrome on_side penetration quadruped sex_toy sheath sheathed_while_penetrated simple_background solo spread_legs spreading tail toying_self tuke wolf