FURVERT!

16:9 absurd_res anthro anus balls bdsm bound brown_body butt canid canine canis chained_cuff clothing countershade_butt countershade_face countershade_torso countershading cuff_(restraint)discarded_clothing discarded_underwear erection fist genitals hands_behind_back hi_res humanoid_genitalia humanoid_penis legs_up male mammal nervous open_mouth pawpads penis presenting presenting_anus restraints solo tupidwithouts underwear upside_down vein veiny_penis white_body white_countershading widescreen wolf yellow_sclera